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2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne2003-08 TRANSMISSIONTiptronic - Diagnostics - 9pa_CayenneTIPTRONICINTRODUCTIONTiptronic (automatic transmission)Diagnosis software number: G 0210Cayenne model year 2003General instructions/safety instructionsCAUTION: Danger of damage due to improper handling of batteries and controlmodule plug connections!• Never disconnect battery with engine running.• Never start engine if battery terminal clamps are not connectedsecurely.• Never puff off or push on plug connections for the control modulesor other electronic components when the ignition is switched on• Always disconnect the negative terminal of the battery and pull off allplug connections to the 'vehicle electrical system control module'when carrying out welding work on the vehicle.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!WARNING: Danger of injury and damage due to unusual vehicle handling when plugsor components are disconnected!• Never disconnect plugs when the vehicle is in motion or drive thevehicle with plugs disconnected.• Drive only with all parts fully installed and connected.Communication between Tiptronic control module and Porsche System Tester II No. 9588

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:The following conditions must be met in order to establish communicationbetween the Tiptronic control module and the Porsche System Tester II No.9588:• Porsche System Tester II No. 9588 connected to data link connector• The battery voltage must be greater than 6.5 VGeneral information on the fault memoryThe fault memory of the control module can save up to (80) different faults simultaneously. If the fault memoryis full, the new fault overwrites the oldest fault. The fault memory content of the 'Tiptronic control module' ismaintained even in removed state.Fault code setting conditionsFault codes can be set in various circumstances, e.g.:• battery disconnected• plug connections disconnected• faulty coding• power failure• etc.In these circumstances, no fault is present in the system and the fault memory must be erased.Standard fault codes in accordance with ISO 15031Diagnostic fault codes, which can be issued by the control module, are standardized in accordance with ISO15031. This ISO standard is based on SAE J 2012.The fault code (DTC = Diagnostic Trouble Code) is always a 5-character alphanumeric value, e.g. "P0100".The first character of the code (a letter) identifies the system that set the code. In all, there are 4 system types:• P for Powertrain (all OBD2 fault codes begin with this)• C for Chassis• B for Body• U for future systems.The P codes for powertrain are divided into two main categories in accordance with ISO 15031:• Uniformly standardized codes: P0XXX and P2XXX; these are the same for all manufacturers• Manufacturer codes: P1XXX and P3XXX; only the first three characters are standardized here (example:P13XX for ignition system diagnosis or misfire detection), the last two digits can be selected freely by the

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneOnly the P codes are required for OBD II.The standardized codes are subdivided as follows:P CODES REFERENCEP001 to P0299 Fuel and air proportioningP03xx Ignition system and misfire detectionP04xx Additional exhaust regulationsP05xx Speed and idle speed controlP06xx Computer and output signalsP0700 to P0999 TransmissionP2000 to P2299 Fuel and air proportioningP23XX Ignition system and misfire detectionP24XX Additional exhaust regulationsP25XX Additional input signalsP26XX Computer and output signalsP27XXTransmissionP28XXReservedP29XX Fuel and air proportioningTroubleshooting procedureTroubleshooting can only be performed when the fault is present. In other words, specific troubleshooting canonly be performed in accordance with instructions (given under Diagnosis/troubleshooting for each fault code)if the entry has the status 'present' in the fault memory.If the fault is currently 'not present', please check the following:• Diagnostic conditions are met• All plug connections and ground points of the affected current path are OK.• View the fault frequency counter in the Porsche System Tester II No. 9588 using the fault memory Infokey [F8] under 'Extended fault memory' and try to reach conclusions about eliminating any loose contactsin the system.Diagnostic conditionsNOTE:NOTE:Important! Always connect a suitable battery charging device to the vehicleelectrical system battery before starting diagnosis. All unnecessary loads mustalso be switched off.The fault can only be identified if the requirements listed under 'Diagnosticconditions' are met. For this reason, the specified procedure must be observedafter a fault is repaired:

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne1. Erase fault memory2. Satisfy the requirements listed under 'Diagnostic conditions'.3. Read out fault memory againPossible causes of faultNOTE:The 'possible causes of fault' that are responsible for the fault are listed here.Please note that in certain circumstances further faults can be stored in thefault memory after troubleshooting (e.g. if plugs are disconnected). Aftercarrying out repairs, read out the fault memory of all control modules and eraseany faults.Diagnosis/troubleshootingNOTE:The fault memory Info key [F8] on Porsche System Tester II No. 9588 can beused to access the 'extended fault memory'. The following information can bedisplayed:Fault typeThe following fault types are possible:• no display• upper limit value exceeded• lower limit value not reached• mechanical fault• no signal/communication• no or incorrect basic setting/adaptation• short circuit to B+• short circuit to ground• implausible signal• open circuit/short circuit to ground• open circuit/short circuit to B+• open circuit• electrical fault in electric circuit• please read out fault memory• faulty• cannot be checked nowFault statusThe following status types are possible:

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• present• not presentThis information should be saved using the Save key [F8] and printed out.NOTE:Visual inspection: During troubleshooting, please check first that theaffected pins on the control module plug connection are neither damagednor corroded. The wires and plugs of the affected components must alsobe checked for external damage and correct contacts. Repair damaged orcorroded pins if possible, otherwise replace affected pins. Repair orreplace damaged wires.NOTE:Battery voltage: A battery voltage of between 11.4 and 14.5 V is requiredfor troubleshooting. This must be checked and provided if necessary.Voltages as well as components or fuses (input side) must be guaranteedon the vehicle electrical system.Freeze frame (frozen fault boundary conditions)Freeze frame data is standardized and records operating conditions in the event of a fault. Freeze frames havedifferent priorities, which can be important when output to a Scan Tool. These can be viewed in the "extendedfault memory" of the Porsche System Tester II No. 9588.Furthermore, various operating conditions can be stored for each fault. These can provide reference points fordetermining the cause of a fault in the case of difficult diagnoses. These can be viewed in the "extended faultmemory" of the Porsche System Tester II No. 9588.Fault deletion counterAn individual deletion counter runs for every fault detected. It determines the storage duration of the relatedfault.When a fault is first detected, the deletion counter is set to 80, for example (suspected fault).If a non-persistent fault is detected as having been remedied, the deletion counter is set to 10, for example (faultdid not occur often enough to be confirmed).Whenever a persistent fault is detected, the deletion counter is set to 40, for example. This value is retained untilthe fault is detected as having been remedied.The deletion counter is decremented by 1 after every warm-up cycle if the fault in question is a non-persistentfault or is detected as having been remedied (faults that are confirmed, but are not detected as having beenremedied are not decremented in the deletion counter). If the deletion counter reaches the value 0, the fault isdeleted <strong>from</strong> the memory.Fault frequency counter

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneThis counter shows how often a fault has recurred following its first occurrence. If the frequency value is 1, thefault has only occurred once. It can now be either "present" or "not present". The fault frequency counter isincremented whenever this fault recurs (the fault correction counter was decremented in the meantime, i.e. acheck was performed and found to be OK). A higher value in the fault frequency counter can therefore indicatea loose contact.TIPTRONIC TOOLSWARNING: Danger of personal injury while driving with special tools• Never hang the Porsche System Tester II No. 9588 over the steeringwheel!NOTE:• Before starting the diagnosis a suitable charging device must beconnected to maintain battery capacity.BATTERY CHARGING DEVICE• Plug contacts are optimally designed to suit the plug system. Operationson pins can cause contact problems. Always use suitable measurementtools for adapter plugs and test cables.Fig. 1: Identifying Battery Charging DeviceCourtesy of PORSCHE OF NORTH AMERICA, INC.PORSCHE SYSTEM TESTER II NO. 9588Fig. 2: Identifying Porsche System Tester II No. 9588

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCourtesy of PORSCHE OF NORTH AMERICA, INC.COMMERCIALLY AVAILABLE DIGITAL MULTIMETERFig. 3: Identifying Commercially Available Digital MultimeterCourtesy of PORSCHE OF NORTH AMERICA, INC.MEASUREMENT TOOL SET NO. 9684Fig. 4: Identifying Measurement Tool Set No. 9684Courtesy of PORSCHE OF NORTH AMERICA, INC.COMPONENT ARRANGEMENT

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 5: Identifying Component Arrangement Of TiptronicCourtesy of PORSCHE OF NORTH AMERICA, INC.a. CAN drive (CAN-C)1. Rate-of-turn sensor (wheel)• front left• front right• rear left• rear right2. PSM control module• Located in right radiator tank with hydraulic unit screwed on, under DME control module3. DME control module• Located in right radiator tank, above hydraulic unit with PSM control module4. Fuse carrier at right of dashboard• Integrated into right side of dashboard5. Tiptronic control module• Located on vehicle floor under passenger's seat (front right)6. Transfer box control module• Located on vehicle floor under passenger's seat (front right)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne7. Steering wheel with Tiptronic rocker switch8. Steering column switch with electronic unit and steering-angle sensor• On the steering column under the steering wheel9. Instrument cluster (includes the gateway)• Integrated into dashboard10. Vehicle electrical system control module (connected to CAN comfort)• Located on right side of steering column near KESSY control module11. Pressure sensor (brake)• Located on the underside of the brake master cylinder. Brake master cylinder and activebrake booster are integrated into radiator tank.12. Tiptronic transmission (automatic transmission)• Multi-function switch 'PRND' 'screwed to right side of housing'• Torque converter• Converter jumper clutch 'integrated into torque converter'• Hydraulic control unit• Sensors• Solenoid valves13. Selector lever module (in center console)Component arrangement 'Item 12' Tiptronic transmission (automatic transmission)Fig. 6: Identifying Component Arrangement Of Tiptronic Transmission (Automatic Transmission)Courtesy of PORSCHE OF NORTH AMERICA, INC.A - Multi-function switch plug connection 'PRND', (existing transmission wiring)B - Sensor plug connection (existing transmission wiring)C - Solenoid valve plug connection (existing transmission wiring)1 - Multi-function switch 'PRND'ARRANGEMENT OF SENSORS AND SOLENOID VALVES IN TRANSMISSION HYDRAULICCONTROL UNIT

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 7: Arrangement Of Sensors And Solenoid Valves In Transmission Hydraulic Control UnitCourtesy of PORSCHE OF NORTH AMERICA, INC.COMPONENT ARRANGEMENT 'ITEM 13' SELECTOR LEVER MODULE (IN CENTERCONSOLE)

17 Ground of modulation pressure solenoid valve(main), existing transmission wiring plug 'pin18 Ground of shift solenoid valve C3 (modulationpressure), existing transmission wiring plug 'pin2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 8: Identifying Component Arrangement Of Selector Lever Module (In Center Console)Courtesy of PORSCHE OF NORTH AMERICA, INC.CONNECTOR ASSIGNMENTTIPTRONIC CONTROL MODULE PLUG, '52-PIN'Fig. 9: Identifying Tiptronic Control Module Plug 52-PinCourtesy of PORSCHE OF NORTH AMERICA, INC.TIPTRONIC CONTROL MODULE PLUG 52-PIN REFERENCEPin DesignationPin Designation1 Ground, ground pin 'MB26' 2 Ground, ground pin 'MB26'3 Terminal 30, right fuse carrier 'fuse 29' 4Voltage/current of shift solenoid valve B1(modulation pressure), existing transmissionwiring plug 'pin A9'5Voltage/current of shift solenoid valve UK(modulation pressure), existing transmissionwiring plug 'pin A11'6Ground of shift solenoid valve C1 (modulationpressure), existing transmission wiring plug 'pinA4'7 Not assigned 8ATF temperature sensor ground, existingtransmission wiring plug 'pin B2'9 K lead, diagnostic box 'pin A7'Position switch B, multi-function switch 'pin10C7'11 Tiptronic UP, selector lever switch 'pin B4' 12 Not assigned13 Not assigned 14 Not assigned15Voltage/current of shift solenoid valve (S2),existing transmission wiring plug 'pin A2'16Voltage/current of shift solenoid valve C2(modulation pressure), existing transmissionwiring plug 'pin A5'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneA14'A8'19 Not assigned 20 Not assignedReversing light input <strong>from</strong> vehicle electrical Position switch PA, multi-function switch 'pin21 22system control module 'pin A20'C5'23 Not assignedOil pressure switch 1, existing transmission24wiring plug 'pin B7'Oil pressure switch 2, existing transmission25wiring plug 'pin B8'26 Not assigned27 Terminal 15, right fuse carrier 'fuse 51' 28 Terminal 15, right fuse carrier 'fuse 51'Voltage/current of shift solenoid valve C329 Shiftlock solenoid, selector lever switch 'pin A5' 30 (modulation pressure), existing transmissionwiring plug 'pin A7'31Voltage/current of modulation pressure solenoidvalve (main), existing transmission wiring plug'pin A13'32Ground of shift solenoid valve C2 (modulationpressure), existing transmission wiring plug 'pinA6'33 Not assigned 34 CAN drive 'low'35 Not assignedPosition switch C, multi-function switch 'pin36C9'Output shaft speed inductive pickup, existing37 Tiptronic DOWN, selector lever switch 'pin B5' 38transmission wiring plug 'pin B5'Input shaft speed (turbine speed) inductive39 pickup, existing transmission wiring plug 'pinB4'40 Not assigned414345Voltage/current of shift solenoid valve (S1),existing transmission wiring plug 'pin A1'Ground of shift solenoid valve UK (modulationpressure), existing transmission wiring plug 'pinA12'Voltage/current of ATF temperature sensor,existing transmission wiring plug 'pin B1'Plug 'A', selector lever switch, '6-pin'4244Voltage/current of shift solenoid valve C1(modulation pressure), existing transmissionwiring plug 'pin A3'Ground of shift solenoid valve B1 (modulationpressure), existing transmission wiring plug 'pinA10'46 CAN drive 'high'47 Position switch A, multi-function switch 'pin C1' 48 Tiptronic INFO, selector lever switch 'pin B3'49 Stop light switchOutput shaft speed inductive pickup, existing50transmission wiring plug 'pin B6'51Input shaft speed (turbine speed) inductivepickup, existing transmission wiring plug 'pinB3'52 Not assigned

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 10: Identifying 6-Pin Of Selector Lever Switch (Plug A)Courtesy of PORSCHE OF NORTH AMERICA, INC.Corresponding socket 'A', selector lever switch, '6-pin'Fig. 11: Identifying 6-Pin Of Selector Lever Switch (Corresponding Socket A)Courtesy of PORSCHE OF NORTH AMERICA, INC.SELECTOR LEVER SWITCH PIN REFERENCEPin DesignationPin DesignationTerminal 31, solenoid for P/N lock, ground1 Terminal 15, solenoid for P/N lock 2pin 'MB 22'Signal for selector lever switch 'P' position toTerminal 31, shiftlock solenoid, ground pin34KESSY control module'MB 22'5 Shiftlock solenoid 6 Not assignedSocket for solenoids (transmission side) 'A', '14-pin' and sensors (transmission side) 'B', '8-pin'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 12: Identifying Socket For Solenoids (A), 14-Pin And Socket For Sensors (B), 8-PinCourtesy of PORSCHE OF NORTH AMERICA, INC.Connector 'A'CONNECTOR A PIN REFERENCEPin DesignationPin Designation1 Voltage/current of shift solenoid valve (S1) 2 Voltage/current of shift solenoid valve (S2)3Voltage/current of shift solenoid valve C1Ground of shift solenoid valve C14(modulation pressure)(modulation pressure)5Voltage/current of shift solenoid valve C2Ground of shift solenoid valve C26(modulation pressure)(modulation pressure)7Voltage/current of shift solenoid valve C3Ground of shift solenoid valve C38(modulation pressure)(modulation pressure)9Voltage/current of shift solenoid valve B1Ground of shift solenoid valve B110(modulation pressure)(modulation pressure)Voltage/current of shift solenoid valve UKGround of shift solenoid valve UK11 12(modulation pressure)(modulation pressure)Voltage/current of modulation pressure solenoid Ground of modulation pressure solenoid13 14valve (main)valve (main)Connector 'B'CONNECTOR B PIN REFERENCEPin DesignationPin Designation1 Voltage/current of ATF temperature sensor 2 Ground of ATF temperature sensorInput shaft speed (turbine speed) inductive Ground of input shaft speed (turbine speed)34pickupinductive pickup

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne5 Output shaft speed inductive pickup 6 Ground of output shaft speed inductive pickup7 Oil pressure switch 1, transmission 8 Oil pressure switch 2, transmissionPlug 'C', multi-function switch, '10-pin' (existing transmission wiring)Fig. 13: Identifying Connector Pins Of Multi-Function Switch (Plug C)Courtesy of PORSCHE OF NORTH AMERICA, INC.Corresponding socket 'C', multi-function switch, '10-pin' (existing transmission wiring)Fig. 14: Identifying Connector Pins Of Multi-Function Switch (Corresponding Socket C)Courtesy of PORSCHE OF NORTH AMERICA, INC.CORRESPONDING SOCKET C PINS REFERENCEPin DesignationPin Designation1 Position switch 'A' 2 Signal to KESSY control module3 Terminal 31, ground pin 'MB 26' 4 Terminal 31, ground pin 'MB 26'5 Position switch 'PA' 6 Not assigned7 Position switch 'B' 8 Terminal 15, right fuse carrier 'fuse 29'9 Position switch 'C' 10 Signal to vehicle electrical system control moduleCONTROL UNIT FUNCTION (CODING/PROGRAMMING)Transmission, diagnosis software number: G 0210

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Cayenne S (A 48.00)• Cayenne Turbo (A 48.50)INTEGRATED FUNCTIONSThe Tiptronic control unit is designed for the OBD II/EOBD and includes the functions listed below:• Computer identification• Computer configuration (internal function test) with ignition ON• Checking the fault memory for fault entries, even in diagnostic mode• Erasing the fault memory• Reading measured values <strong>from</strong> switches and sensorsSupported functions:• Diagnosis software number• Drive link test with active fault checkingBasic setting:• Adaptation/Resetting adaptation values• Read memory• Write memory• Update program• Flash program• Protected against unauthorized accessCOMMISSIONINGWhen the ignition 'terminal 15' is switched on, an internal function test (initialization phase/configuration) isperformed in the Tiptronic control unit. When the internal function test is completed successfully, all functionsintegrated into the Tiptronic control unit are enabled.OPERATING CONDITIONThe Tiptronic control unit is in operating mode once the ignition is switched on and the internal function test iscompleted successfully. Within the defined limits for power supply '10.5 V to 16.5 V' and temperature, allincoming signals are processed by the integrated software and the appropriate monitoring and control processesare performed.The solenoid valves in the transmission are guaranteed to function perfectly at a voltage of between '9.0 V and16.5 V'.DATA TRANSFER

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneThe Tiptronic control unit sends and receives data/information via the following 'CAN data bus':• CAN drive (C)• Gateway (in instrument cluster)Data transfer via the CAN drive is guaranteed at a voltage of between '6.5 V and 16.5 V'.Wake-up function via CAN data bus 'CAN drive'• The data bus switches to idle state after ignition is OFF for 8 secondsDIAGNOSISFaults are only entered within the voltage range 6.5 V to 18.0 V.Fault memoryFaults that occur during operation are stored in a non-volatile memory (e.g. EEPROM). The faults remain in thememory even if terminal 15 and terminal 30 are not live. The fault memory is designed in such a way that theoccurring faults, data source, fault type and fault deletion counter can be saved. The Tiptronic control unit sendsmessages and checks the CAN drive cyclically for messages <strong>from</strong> other control units. If no messages arereceived for a certain time period, a fault is stored in the fault memory.ADAPTATIONNOTE:Undeleted adaptation values result in rough shift operations in thetransmission. The Tiptronic control unit needs a certain amount of time toreplace existing values with new values.Work to be carried out after replacing a control unit:• Delete the adaptation values using the Porsche System Tester II No. 9588• Teach the accelerator pedalTo teach the accelerator pedal:• Ignition ON• Press the accelerator pedal for at least 3 secondsThe accelerator pedal can also be taught while the vehicle is in motion, provided the accelerator pedal is pressedfor at least 3 seconds. No indication is given that the teaching procedure is complete.CODINGNOTE:If the coding does not agree with the vehicle equipment, faults will be displayed

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCoding/ProgrammingUnder the menu item "Extract coding" you can read out which equipment features are activated and which arenot.After successful replacement of the 'Tiptronic control unit', the coding in the DME control unit must be adapted.Modifying coding• Asia• U.S.A.• RoW (rest of world)LIMP-HOME MODEThe functions stored for the limp-home mode in the Tiptronic control unit are divided into two categories:Limp-home mode 1 and limp-home mode 2.The following table shows the shift response of the transmission in limp-home mode:Limp-home mode 1that do not really exist.Fault not caused by incorrect gear ratio or unusual shifting!Explanation of table headings and content:• Shift state before setting fault: States the selected position of the selector lever and the selected gearbefore the fault occurs and is set.• Step 1: After a fault occurs and is set, the Tiptronic control unit switches to limp-home mode and initiatesthe appropriate shift operation.• Step 2: The vehicle is in motion and the shift operation initiated in 'Step 1' terminates.• Step 3: Motion is interrupted and the vehicle stops. The Tiptronic control unit initiates the shift operationfor 'gear 3' (the run will be continued in 'gear 3').• Step 4: The shift operation initiated in 'Step 3' terminates and 'gear 3' is engaged.SHIFT RESPONSE OF TRANSMISSION IN LIMP-HOME MODE 1Limp-home mode 1ShiftStep 1 Step 2 Step 3 Step 4state Shift response Torque Shift response Torque Shift response Torque Shift response Torqbefore remains changes limit remains changes limit remains changes limit remains changes limifault set in gear gear Nm in gear gear Nm in gear gear Nm in gear gear NmR R B1/IN 400state remains400state remains400 400

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayennesamesameD 1 - 3* 10all shift solenoid400 3 - 400 shift solenoid 400D 2 - 3* 10 valves400 3 - 400 valves 400D 3 3* - 400 are400 3 - 400 are 400D 4 4* - 250 'OFF'250 - 3** 250 disabled** 400D 5 5 - 250 engaged gear 250 - 3** 250 (see notes) 400D 6 6 - 250held250 - 3** 250 400'R'controlenabled enabled enabled disabledPowerswitch(inTiptroniccontrolunitON ON ON OFFExplanatory notes on content of table for Limp-home mode 1:Power switch (in Tiptronic control unit):With the power switch (in Tiptronic control unit) 'ON', the Tiptronic control unit can control the transmission.With the power switch (in Tiptronic control unit) 'OFF', the Tiptronic control unit cannot control thetransmission.• D: 'Selector lever position' gears 1, 2, 3, 4, 5, 6• R: 'Selector lever position' reverse gear• 'B1' Shift solenoid valve B1 (modulation pressure)Where the state given in the table is shown with a '*' or '**', then the state is modified as follows:• *: 'Gear 5' is engaged if a fault is present in the 'shift solenoid valve C1 (modulationpressure)' (disengagement fault of the torque converter lockup clutch).• **: Shifting is not possible if a fault is present in the 'shift solenoid valve C2 (modulationpressure)' (engagement fault of the torque converter lockup clutch). If the selector lever is moved <strong>from</strong> 'D'to 'N' and back again to 'D', then the Tiptronic control unit shifts to 'gear 5'. Differences: If the vehiclespeed = 0 km/h and the period of 10 seconds set in the selector lever positions 'P, R, N' expires, then 'gear3' is engaged after changing the selector lever position <strong>from</strong> 'D' to 'N' and back again to 'D'. If the selectorlever is moved <strong>from</strong> 'D' to 'N' and back again to 'D' in 'step 1' and 'step 2', the Tiptronic control unit shiftsto 'gear 5'.In the event of a 'solenoid valve modulation pressure (main)' fault, the torque is limited as follows:• Selector lever in position 'D' 150 Nm

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Selector lever in position 'R' 100 NmLimp-home mode 2Fault caused by incorrect gear ratio or unusual shifting!Explanation of table headings and content:• Shift state before setting fault: States the selected position of the selector lever and the selected gearbefore the fault occurs and is set.• Step 1: Vehicle in motion. After a fault occurs and is set, the Tiptronic control unit switches to limp-homemode. The gear engaged before the fault was set remains and the torque converter lockup clutch is notactivated.• Step 2: Motion interrupted, the vehicles is stationary, the gear engaged in 'step 1' is held. Shift solenoidvalve C2 (modulation pressure) and shift solenoid valve B1 (modulation pressure) are 'ON'. All othershift solenoid valves are 'OFF'. Shift operation for 'gear 3' is prepared.• Step 3: Shift operation for 'gear 3' terminates and the gear is held. Neutral-detect is started.• Step 4: Shift operation for 'gear 5' is initiated. No 'neutral' state.• Step 5 Shift operation for 'gear 5' terminates. No 'neutral' state and the shift solenoid valves are disabled.SHIFT RESPONSE OF TRANSMISSION IN LIMP-HOME MODE 2Limp-home mode 2Shift Step 1 Step 2 Step 3 Step 4 Step 5stateTorque Torque Torque Torque TorquebeforeShiftShiftShiftShiftShiftlimitlimitlimitlimitlimitfault setresponse response response response response[Nm][Nm][Nm][Nm][Nm]RRD 1D 2D 3D 4D 5D 6'R'controlPowerstateremainssameengage dgear held,noactivationof torqueconverterlockupclutch100150stateremainssameShiftsolenoidvalveC1/B1'ON';othershiftsolenoidvalves'OFF'engage dgearremains!100150stateremainssamestateremainsheldneutraldetect100150stateremainssameshifts to'gear 5'100 100150shiftsolenoidvalvesaredisabledenabled enabled enabled enabled disabled150

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneswitch (inTiptroniccontrolunit)ON ON ON ON OFFPower switch (in Tiptronic control unit):With the power switch (in Tiptronic control unit) 'ON', the Tiptronic control unit can control the transmission.With the power switch (in Tiptronic control unit) 'OFF', the Tiptronic control unit cannot control thetransmission.FAULT OVERVIEWFAULT OVERVIEW OF PORSCHE FAULT CODESThe text shown in brackets is not displayed when reading out faults using the 9588 Porsche System TesterII. These fault codes are standardized worldwide in the OBD II/EOBD and are read out using Scan Tool(the standard read-out tester throughout the world). In the 9588 Porsche System Tester II, this functionis supported under 'Special functions', menu item 'CARB (ISO)'.PORSCHE FAULT CODESFaultFault textcode0258[P0753]0260[P0758]0262[P2725]Shift solenoid valve (S1)[Shift Solenoid 'A' Electrical]Shift solenoid valve (S2)[Shift Solenoid 'B' Electrical]Shift solenoid valve C3 (modulationpressure)[Pressure Control Solenoid 'E'Fault effect• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• Limp-home mode 1• No self-learning check 'Adaptation'• The incoming torque (engine) is limited to 450Nm (333 ft.lb.)• The torque to be transferred is limited to 430 Nm(318 ft.lb.)• The line pressure is limited to 11.15 bar• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneElectrical]• Limp-home mode 1• No self-learning check 'Adaptation'0264[P0743]0266[P0798]0268[P0748]0293[P0705]Shift solenoid valve UK (modulationpressure)[Torque Converter Clutch CircuitElectrical]Shift solenoid valve C1 (modulationpressure)[Pressure Control Solenoid 'C'Electrical]Modulation pressure solenoid valve(main)[Pressure Control Solenoid 'A'Electrical]Multi-function switch (PRND)[Transmission Range Sensor CircuitMalfunction (PRNDL Input)]• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• No neutral check• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Signal to DME control unit to limit the incomingtorque (designed to prevent clutch slippage)• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• If the fault '0789 Reversing light switch' is storedat the same time, the Tiptronic control unitswitches to limp-home mode 1• No self-learning check 'Adaptation'• When 'reversing light switch' is not actuated, theTiptronic control module detects that 'D' isselected• When 'reversing light switch' is actuated, theTiptronic control module detects that 'R' isselected• No selector lever lock (shiftlock) check

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne0300[P0711]0300[P0712]0300[P0713]0348[P2716]0349[P2734]ATF temperature sensor[Transmission Fluid TemperatureSensor 'A' CircuitRange/Performance]ATF temperature sensor[Transmission Fluid TemperatureSensor 'A' Circuit Low]ATF temperature sensor[Transmission Fluid TemperatureSensor 'A' Circuit High]Shift solenoid valve C2 (modulationpressure)[Pressure Control Solenoid 'C'Electrical]Shift solenoid valve B1 (modulationpressure)[Pressure Control Solenoid 'F'Electrical]• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• A substitute value is used for the oil temperature• No slip check on converter jumper clutch• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• A substitute value is used for the oil temperature• No slip check on converter jumper clutch• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• A substitute value is used for the oil temperature• No slip check on converter jumper clutch• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No switching <strong>from</strong> 'gear 3' to 'gear 4' and viceversa• Torque limited to 50 Nm (37 ftlb.)0364 Power supply terminal 15• Limp-home mode 1• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• No neutral check 'N'• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / D' and vice versa when vehicleis stationary• No switching <strong>from</strong> 'P' to 'N'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne04530529[P0725]• No check in 'R' position• No switching <strong>from</strong> 'gear 1' to 'gear 2' and 'gear 3'• No selector lever lock (shiftlock) checkFunction restricted due to excess•temperature -Engine speed[Engine Speed Input Circuit]0641 ATF temperature0777[P2122]Accelerator module[Throttle/Pedal PositionSensor/Switch 'D' Circuit Low Input]0789 Reversing light switch1045 Selector lever switch1166[P2637]Engine torque signal[Torque Management FeedbackSignal 'A']• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / D' and vice versa when vehicleis stationary• No switching <strong>from</strong> 'P' to 'N'• No self-learning check 'Adaptation'• The Tiptronic control unit sends a signal to theDME control unit to limit the torque• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / D' and vice versa when vehicleis stationary• Limited torque (150 Nm (111 ftlb.)) on engineside• Accelerator limited to 50%• Selector lever position 'R' no signal <strong>from</strong>reversing light switch• Fault display in multi-function display ininstrument cluster• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• The last torque signal received via the CAN driveis used for calculations

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne1192[P0811]Converter jumper clutch[Excessive Clutch Slippage]1236 Shiftlock solenoid1312[P0864]1312[P0865]CAN drive[TCM Communication CircuitRange/Performance]CAN drive[TCM Communication Circuit Low]1314 DME control module1314[P0614]1314[P0864]DME control module[ECM/TCM Incompatible]DME control module[TCM Communication CircuitRange/Performance]1316 PSM control module• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No check/slip check on converter jumper clutch• Fault display in multi-function display ininstrument cluster• Shiftlock solenoid does not function• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• Torque limit on engine side• No neutral check• Limp-home mode 1• Failure of all functions supported by Tiptroniccontrol module• Fault display in multi-function display ininstrument cluster• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• Failure of all functions supported by Tiptroniccontrol module• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• Failure of all functions supported by Tiptroniccontrol module• No self-learning check 'Adaptation' of Tiptroniccontrol module• The last speed signal received via the CAN driveremains stored and is used for calculations

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne1435 Pressure sensor (brakes) • Internal pressure sensor is 'ON'1679 Speed signal, front left wheel1680 Speed signal, front right wheel1681 Speed signal, rear left wheel1682 Speed signal, rear right wheel1683 Speed signal, PSM control module1847 Transfer box control module1871Rocker switch (steering columnswitch)2053 Transfer box control moduleFAULT OVERVIEW OF P CODES• No self-learning check 'Adaptation' of Tiptroniccontrol module• The last speed signal for the front left wheelreceived via the CAN drive remains stored and isused for calculations• No self-learning check 'Adaptation' of Tiptroniccontrol module• The last speed signal for the front right wheelreceived via the CAN drive remains stored and isused for calculations• No self-learning check 'Adaptation' of Tiptroniccontrol module• The last speed signal for the rear left wheelreceived via the CAN drive remains stored and isused for calculations• No self-learning check 'Adaptation' of Tiptroniccontrol module• The last speed signal for the rear right wheelreceived via the CAN drive remains stored and isused for calculations• No self-learning check 'Adaptation' of Tiptroniccontrol module• The last speed signal received via the CAN driveremains stored and is used for calculations• Fault display in multi-function display ininstrument cluster• The last value received via the CAN drive or asubstitute value is used for calculations• The vehicle speed is calculated without thetransfer boxTable with and without OBD II/EOBD 'P-Code', in brackets the associated Porsche fault codes, whichare displayed in the 9588 Porsche System Tester II under Tiptronic control unit:PORSCHE P CODESFaultFault textcodeFault effect

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneP0604[16988]P0605[16989]P0613[16997]P0614[1314]P0700[17084]P0705[0293]P0711[0300]P0712[0300]Internal Control Module RandomAccess Memory (RAM) Error[Tiptronic control unit]Internal Control Module ReadMemory (ROM) Error[Tiptronic control unit]TCM Processor[Tiptronic control unit/CAN driveOFF]ECM/TCM Incompatible[DME control unit]Transmission Control System (CERequest)[Tiptronic control unit]Transmission Range Sensor CircuitMalfunction (PRNDL Input)[Multi-function switch (PRND)]Transmission Fluid TemperatureSensor 'A' CircuitRange/Performance[ATF temperature sensor]Transmission Fluid TemperatureSensor 'A' Circuit Low[ATF temperature sensor]• Limp-home mode 1• Limp-home mode 1• Failure of all functions supported by Tiptroniccontrol module• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• Failure of all functions supported by Tiptroniccontrol module• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Calculation error in Tiptronic control module• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• If the fault '0789 Reversing light switch' is storedat the same time, the Tiptronic control unitswitches to limp-home mode 1• No self-learning check 'Adaptation'• When 'reversing light switch' is not actuated, theTiptronic control module detects that 'D' is selected• When 'reversing light switch' is actuated, theTiptronic control module detects that 'R' is selected• No selector lever lock (shiftlock) check• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• A substitute value is used for the oil temperature• No slip check on converter jumper clutch• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• A substitute value is used for the oil temperature

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• No slip check on converter jumper clutchP0713[0300]P0715[17099]P0716[17100]Transmission Fluid TemperatureSensor 'A' Circuit High[ATF temperature sensor]Input/Turbine Speed Sensor 'A'Circuit[Input shaft speed (turbine speed)inductive pickup]Input/Turbine Speed Sensor 'A'Circuit Range/Performance[Input shaft speed (turbine speed)inductive pickup]• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• A substitute value is used for the oil temperature• No slip check on converter jumper clutch• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• If communication with the DME control unit alsofails (no engine speed signal)• The method used to calculate the input shaft speedchanges• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / 'D and vice versa when vehicleis stationary• No switching <strong>from</strong> 'P' to 'N'• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No engine speed signal if communication with theDME control unit also fails• The method used to calculate the input shaft speedchanges• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / D' and vice versa when vehicleis stationary• No switching <strong>from</strong> 'P' to 'N'• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• The method used to calculate the output shaft

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneP0720[17104]P0721[17105]P0725[0529]Output Speed Sensor Circuit[Output shaft speed inductive pickup]Output Speed Sensor CircuitRange/Performance[Output shaft speed inductive pickup]Engine Speed Input Circuit[Engine speed]speed changes• Rough switching operations during gear change<strong>from</strong> 'P' to 'N' and vice versa when vehicle isstationary• If ABS function also fails: no check on 'R' positionand selector lever lock (shiftlock), speedometerdisplay is '0 km/h'• If input shaft speed and ABS function also fail:speedometer display is '0 km/h' in all switchingpositions• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• The method used to calculate the output shaftspeed changes• Rough switching operations during gear change<strong>from</strong> 'P' to 'N' and vice versa when vehicle isstationary• If ABS function also fails: no check on 'R' positionand selector lever lock (shiftlock), speedometerdisplay is '0 km/h'• If input shaft speed and ABS function also fail:speedometer display is '0 km/h' in all switchingpositions• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / D' and vice versa when vehicleis stationary• No switching <strong>from</strong> 'P' to 'N'• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) in

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneP0729[17113]P0730[17114]P0731[17115]P0732[17116]P0733[17117]Gear 6 Incorrect Ratio[Gear '6', incorrect ratio]Incorrect Gear Ratio[Incorrect gear ratio]Gear 1 Incorrect Ratio[Gear '1', incorrect ratio]Gear 2 Incorrect Ratio[Gear '2', incorrect ratio]Gear 3 Incorrect Ratio[Gear '3', incorrect ratio]instrument cluster 'ON'• Limp-home mode 2• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torque• Fault display in multi-function display ininstrument cluster• Limp-home mode 1• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torque• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torque• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torque• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torqueP073417118Gear 4 Incorrect Ratio[Gear '4', incorrect ratio]• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'

Pressure Control Solenoid 'C'• Fault display in multi-function display ininstrument cluster2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Limp-home mode 1• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torqueP0735[17119]P0743[0264]P0748[0268]P0753[0258]P0758[0260]Gear 5 Incorrect Ratio[Gear '5', incorrect ratio]Torque Converter Clutch CircuitElectrical[Shift solenoid valve UK (modulationpressure)]Pressure Control Solenoid 'A'Electrical[Modulation pressure solenoid valve(main)]Shift Solenoid 'A' Electrical[Shift solenoid valve (S1)]Shift Solenoid 'B' Electrical[Shift solenoid valve (S2)]• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Tiptronic control module sends a signal to theDME control module to limit the torque• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• No neutral check• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Signal to DME control module to limit theincoming torque (designed to prevent clutchslippage)• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneP0798[0266]P0811[1192]P0840[17224]P0841[17225]P0845[17229]P0846[17230]Electrical[Shift solenoid valve C1 (modulationpressure)]Excessive Clutch Slippage[Torque converter lockup clutch]Transmission Fluid PressureSensor/Switch 'A' Circuit[Oil pressure switch 1, transmission]Transmission Fluid PressureSensor/Switch 'A' CircuitRange/Performance[Oil pressure switch 1, transmission]Transmission Fluid PressureSensor/Switch 'B' Circuit[Oil pressure switch 2, transmission]Transmission Fluid PressureSensor/Switch 'B' CircuitRange/Performance[Oil pressure switch 2, transmission]• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No check/slip check on converter jumper clutch• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Shift solenoid valve C1 (modulation pressure)jams• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• No switching possible (except 'P' and 'N')• Torque limited to 300 Nm (222 ftlb.)• No neutral check• If output shaft speed = 0 rpm, 'gear 3' is held• -• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• Shift solenoid valve (S1) jams• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• No switching possible (except 'P' and 'N')• Torque limited to 300 Nm (222 ftlb.)• No neutral check• If output shaft speed = 0 rpm, 'gear 3' is held• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Limp-home mode 1P0864[1312]P0864[1314]P0865[1312]TCM Communication CircuitRange/Performance[CAN drive]TCM Communication CircuitRange/Performance[DME control unit]TCM Communication Circuit Low[CAN drive]• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• Torque limit on engine side• No neutral check• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No check/slip check on converter jumper clutch• Torque limit on engine side• No neutral check• Limp-home mode 1• Failure of all functions supported by Tiptroniccontrol module[P1602] [Battery voltage, terminal 30] • -[P1847] [PSM control unit]• No self-learning check 'Adaptation'• The last signal received via the CAN drive is usedfor calculationsP2122[0777]Throttle/Pedal PositionSensor/Switch 'D' Circuit Low Input[Accelerator module]• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• No self-learning check 'Adaptation'• Limited shift function• Restricted torque (150 Nm (111 ftlb.)) on engineside• Rough switching operations during gear change<strong>from</strong> 'P' to 'N / R / D' and vice versa when vehicleis stationary• Accelerator limited to 50%

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneP2637[1166]P2716[0348]P2725[0262]P2734[0349]Torque Management FeedbackSignal 'A'[Engine torque signal]Pressure Control Solenoid 'D'Electrical[Shift solenoid valve C2 (modulationpressure)]Pressure Control Solenoid 'E'Electrical[Shift solenoid valve C3 (modulationpressure)]Pressure Control Solenoid 'F'Electrical[Shift solenoid valve B1 (modulationpressure)]• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• The last torque signal received via the CAN driveis used for calculations• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• Fault display in multi-function display ininstrument cluster• CE control lamp (Check Engine warning light) ininstrument cluster 'ON'• Limp-home mode 1• No self-learning check 'Adaptation'• No switching <strong>from</strong> 'gear 3' to 'gear 4' and viceversa• Torque limited to 50 Nm (37 ftlb.)TROUBLESHOOTING WITH NO CONTROL MODULE CONNECTEDNOTE:9588 Porsche System Tester II and 'Tiptronic control unit' are not connected.OVERVIEWDiagnostic conditions• Ignition on• The fuses of the 'Tiptronic control unit' are OK

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Battery voltage is OK• Plug on 'Tiptronic control unit' fitted correctly• Battery for 9588 Porsche System Tester II chargedPossible cause of fault• Incorrect vehicle type selected in 9588 Porsche System Tester II• 9588 Porsche System Tester II is not connected correctly or is faulty• Power supply to the 'Tiptronic control unit' is not OK• 'K-line' to 'Tiptronic control unit' faulty• 'CAN drive' does not function• 'Tiptronic control unit' does not functionAffected pinsTiptronic control module plug:• Pin 27 'terminal 15 power supply via fuse F51/fuse carrier at right of dashboard'• Pin 28 'terminal 15 power supply via fuse F51/fuse carrier at right of dashboard'• Pin 3 'terminal 30 power supply via fuse F29/fuse carrier at right of dashboard'• Pin 1 'ground <strong>from</strong> body ground pin MB26'• Pin 2 'ground <strong>from</strong> body ground pin MB26'• Pin 46 'CAN drive (high)'• Pin 34 'CAN drive (low)'Diagnostic box in driver's footwellFig. 15: Identifying Connector Pins For Diagnostic Box In Driver's FootwellCourtesy of PORSCHE OF NORTH AMERICA, INC.CONNECTOR PINS REFERENCEPin DesignationPin DesignationTerminal 15 (fuse F52, fuse carrier at left of19 Not useddashboard)2 Not used 10 Not used

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne3 K' lead (communication with Tester) 11 Not used4 Ground 12 Not used5 Ground 13 Not used6 CAN high diagnosis (instrument cluster) 14 CAN low diagnosis (instrument cluster)7 K lead (OBD) 15 Not used8 Not usedTerminal 30 (fuse F7, fuse carrier at left of16dashboard)DIAGNOSIS/TROUBLESHOOTING G 0210DIAGNOSIS/TROUBLESHOOTING PROCEDURE - G 0210DisplayWork instructionIf not OKOK1234Check 9588Porsche SystemTester IIconnections:Check fuses andadjacent voltagein fuse carrier atright ofdashboard:Check terminal30 power supplyof 'Tiptroniccontrol unit'Check terminal15 power supplyof 'Tiptroniccontrol unit'• Check that the data linkconnector 9588 Porsche SystemTester II is connected correctlyto the diagnostic box in thevehicle.• Check 9588 Porsche SystemTester II connection cable fordamage.• Check function of 9588 PorscheSystem Tester II on anothervehicle, if necessary.• Terminal 30 power supply 'fuseF29'• Terminal 15 voltage 'fuse F51'• Switch off ignition• Pull plug off the 'Tiptroniccontrol unit'• Measure voltage between 'pin 3'and ground.• Switch on ignition• Measure voltage between 'pin27/28' and ground.Go toStep 2Check terminal < 511.4 to14.5 VGo toStep 311.4 to14.5 VGo toStep 411.4 to14.5 VGo toStep 5Repair 9588 Porsche System TesterII.--> EndReplace any faulty fuse(s) (beforedoing so, check that the correct fusewas used). If the fuses are intact butthere is no voltage, check the wiresand repair them if necessary. If thewires are intact, check the fuse boxand replace it if faulty.=> EndRepair terminal 30 power supply of'Tiptronic control unit'.=> EndRepair terminal 15 power supply of'Tiptronic control unit'.=> EndBetween Tiptronic control unit plugand 'body ground pin MB26': Opencircuit, contact resistance/corroded

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne531 groundsupply for opencircuit:• Switch off ignition• Measure resistance between 'pin1/2' and ground.ohmsGo toStep 6or loose connection at 'body groundpin MB26'.Repair wire or fasten it to groundpin.=> End• Switch off ignition6Check 'K-line'for short circuitto B+:• Disconnect DME control unit• Switch on ignition• Measure voltage between 'pin 7'of K-line on diagnostic box inthe vehicle and ground.< 0.3 VGo toStep 7Repair K-line=> End789Check 'K-line'for short circuitto ground:Check 'K-line'for open circuit:CAN drive,checkconnection to'Tiptroniccontrol unit':• Switch off ignition10 Replace Tiptronic control moduleFAULT CODE 0258/P0753• Measure resistance between 'pin7' of K-line on diagnostic box inthe vehicle and ground.• Measure resistance of K-line<strong>from</strong> diagnostic box in thevehicle 'pin 7' to plug onTiptronic control unit 'pin 9'.infinityohmsGo toStep 8< 0.5ohmsGo toStep 9Repair K-line=> EndRepair K-line=> End• Follow 'CHECKING If CAN check is OK:INSTRUCTIONS/CAN DATAGo to Step 10BUS '.Code new 'Tiptronic control unit'=> EndSHIFT SOLENOID VALVE (S1) [SHIFT SOLENOID 'A' ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.DIAGNOSTIC CONDITIONS

2 - Shift solenoid valve (S1)2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctionsPossible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1, 2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Open circuit/short circuit to B+': A short circuit to B+ causes the shiftsolenoid valve (S1) to be continually activated• 1.) 'Open circuit/short circuit to B+': An open circuit prevents activation ofthe shift solenoid valve (S1)• 2.) 'Short circuit to ground': A short circuit to ground prevents activationof the shift solenoid valve (S1)AFFECTED PINSTiptronic control module plug:• Pin 41 'voltage of shift solenoid valve (S1)', to existing transmission wiring plug 'pin A1'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shift solenoid valve (S1)Fig. 16: Wiring Diagram Of Shift Solenoid Valve (S1)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne41 - Pin (41)I - Current flowData on shift solenoid valve (S1)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.9 A• Default internal resistance: 13 ± 2 ohms (at 20°C)NOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Open circuit/short circuit to B+'TROUBLESHOOTING PROCEDURE ONLY OPEN CIRCUIT/SHORT CIRCUIT TO B+DisplayWork instructionIf not OKOK1Check for short circuit toB+ with 'Tiptroniccontrol module' plugdisconnected andsolenoid valve plugconnected (existing• Switch off ignition• Pull plug off Tiptronic control module• Switch on ignition• Measure voltage between 'pin 41' andground on Tiptronic control module< 0.3 VGo toStep 2Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne23456transmission wiring): plug. --> EndCheck for short circuitwith both 'Tiptroniccontrol module' plug andsolenoid valve plugdisconnected (existingtransmission wiring):Check for open circuitwith 'Tiptronic controlmodule' plugdisconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for open circuitwith both 'Tiptroniccontrol module' plug andsolenoid valve plugdisconnected (existingtransmission wiring):Check wire in thetransmission for opencircuit:Check shift solenoidvalve for open circuit:• Switch off ignitioninfinity• Measure resistance between 'pin Al' and ohmspins 'A2, A3, A5, A7, A9, A11, A13' on Go tosolenoid valve plug (existing Step 3transmission wiring).• Switch off ignition• Measure resistance between 'pin 41' andground on Tiptronic control moduleplug.• Switch off ignition• Pull off solenoid valve plug (existingtransmission wiring)• Measure resistance between 'pin 41' onTiptronic control module plug and 'pinA1' of solenoid valve plug (existingtransmission wiring).(Observe warning notes!) Remove ATF panon the transmission (first drain fluid) RemoveATF filter, perform visual inspection of plugand wiring:• Switch off ignition• Solenoid valve plug (existingtransmission wiring) connected• Measure resistance between 'pin 41' onTiptronic control module plug and shiftsolenoid valve (S1) plug.• Measure resistance between shiftsolenoid valve (S1) plug and housing.13 ± 2ohms (at20°C)Go toStep 7< 2 ohmsGo toStep 5< 2 ohmsGo toStep 613 ± 2ohms (at20°C)Go toStep 8Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 4Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndReplace wiringharness in thetransmission.--> EndWindinginterrupted!Go to Step 97Check mechanicalfunctionality of shiftsolenoid valve (S1)• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring)connected• Using a suitable auxiliary cable that isfuse-protected in accordance with theGo toGo to Step 8

Check for short circuitRepair wiring2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne8using Tiptronic controlmodule plug:Check the mechanicalfunctionality of the shiftsolenoid valve (S1)directly at the valve:9 Replace shift solenoid valve (S1)10 Replace control modulepower consumption of the shift solenoid Step 10valve, supply 'approx. 12 V batteryvoltage' to 'pin 41' of the Tiptroniccontrol module plug for a short time. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.• Pull plug off the shift solenoid valve(S1).• Using a suitable auxiliary cable that isfuse-protected in accordance with the Go topower consumption of the shift solenoid Step 10valve, supply 'approx. 12 V batteryvoltage' to the shift solenoid valve for ashort time. A distinct click should beheard <strong>from</strong> the shift solenoid valve.2. Troubleshooting only for fault type: 'Short circuit to ground'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO GROUNDWork instructionDisplayOKCheck for short circuit toground with 'Tiptronic• Switch off ignitioncontrol module' plug1 disconnected and• Pull plug off Tiptronic control modulesolenoid valve plugconnected (existingtransmission wiring):Check for short circuit toground with both'Tiptronic control2 module' plug andsolenoid valve plugdisconnected (existingtransmission wiring):• Measure resistance between 'pin 41' andground on Tiptronic control moduleplug.• Pull off solenoid valve plug (existingtransmission wiring)• Measure resistance between 'pin 41' andground on Tiptronic control moduleplug.Shift solenoidvalve stiff.Go to Step 9Only replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacing controlmodules!--> End13 ± 2ohms (at20°C)Go toStep 6infinityohmsGo toStep 3If not OKGo to Step 2Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennewith both 'Tiptroniccontrol module' plug andsolenoid valve plug3disconnected (existingtransmission wiring):Check wire in the4 transmission for shortcircuit to ground:Check directly at thevalve for short circuit to5ground in the shiftsolenoid valve (S1):Check mechanicalfunctionality of shift6 solenoid valve (S1) usingTiptronic control moduleplug:Check the mechanicalfunctionality of the shift7solenoid valve (S1)directly at the valve:8 Replace shift solenoid valve (S1)• Measure resistance between 'pin Al' andpins 'A4, A6, A8, A10, A12, A14' onsolenoid valve plug (existingtransmission wiring).(Observe warning notes!) Remove ATF pan onthe transmission (first drain fluid) RemoveATF filter, perform visual inspection of plugand wiring:• Pull plug off the shift solenoid valve(S1).• Measure resistance betweendisconnected plug (wiring side) andground (transmission housing).• Pull plug off the shift solenoid valve(S1).• Measure resistance between plug ondisconnected shift solenoid valve (S1)and ground (transmission housing).infinityohms,Go toStep 4infinityohmsGo toStep 513 ± 2ohms (at20°C)Go toStep 7• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoid Go tovalve, supply 'approx. 12 V battery Step 9voltage' to 'pin 41' of the Tiptroniccontrol module plug for a short time. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to the shift solenoid valve for ashort time. A distinct click should beheard <strong>from</strong> the shift solenoid valve.Go toStep 9harness toTiptronic controlmodule (existingtransmissionwiring).--> EndReplace wiringharness in thetransmission.--> EndShift solenoidvalve stiff.Go to Step 8Shift solenoidvalve stiff.Go to Step 8Shift solenoidvalve stiff.Go to Step 8Only replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne9 Replace control moduleSee note on replacing controlmodules!--> EndFAULT CODE 0260/P0758SHIFT SOLENOID VALVE (S2) [SHIFT SOLENOID 'B' ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come'ON'Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1, 2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Open circuit/short circuit to B+': A short circuit to B+ causes the shift solenoid valve (S2) to becontinually activated• 1.) 'Open circuit/short circuit to B+': An open circuit prevents activation of the shift solenoid valve (S2)• 2.) 'Short circuit to ground': A short circuit to ground prevents activation of the shift solenoid valve (S2)Affected pins

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneTiptronic control module plug:• Pin 15 'voltage of shift solenoid valve (S2)', to existing transmission wiring plug 'pin A2'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shift solenoid valve (S2)1 - Tiptronic control module2 - Shift solenoid valve (S2)15 - Pin (15)I - Current flowFig. 17: Wiring Diagram Of Shift Solenoid Valve (S2)Courtesy of PORSCHE OF NORTH AMERICA, INC.Data on shift solenoid valve (S2)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.9 A• Default internal resistance: 13 ± 2 ohms (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.

(Observe warning notes!) Remove ATF panon the transmission (first drain fluid) RemoveATF filter, perform visual inspection of plug2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneWARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Open circuit/short circuit to B+'TROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO B+Work instructionDisplayIf not OKOKCheck for short circuit to• Switch off ignitionRepair wiringB+ with 'Tiptronicharness to• Pull plug off Tiptronic control modulecontrol module' plug< 0.3 V Tiptronic control1 disconnected and• Switch on ignitionGo to module (existingsolenoid valve plug• Measure voltage between 'pin 15' and Step 2 transmissionconnected (existing ground on Tiptronic control modulewiring).transmission wiring): plug--> End234Check for short circuitwith both 'Tiptroniccontrol module' plug andsolenoid valve plugdisconnected (existingtransmission wiring):Check for open circuitwith 'Tiptronic controlmodule' plugdisconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for open circuitwith both 'Tiptroniccontrol module' plug andsolenoid valve plugdisconnected (existingtransmission wiring):• Switch off ignition• Measure resistance between 'pin A2'and pins' Al, A3, A5, A7, A9, A11,A13' on solenoid valve plug (existingtransmission wiring)• Switch off ignition• Measure resistance between 'pin 15' andground on Tiptronic control moduleplug• Switch off ignition• Pull off solenoid valve plug (existingtransmission wiring)• Measure resistance between 'pin 15' onTiptronic control module plug and 'pinA2' of solenoid valve plug (existingtransmission wiring)infinityohmsGo toStep 313 ± 2ohms (at20°C)Go toStep 7< 2 ohmsGo toStep 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 4Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

2. Troubleshooting only for fault type: 'Short circuit to ground'2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne5678Check wire in thetransmission for opencircuit:Check shift solenoidvalve for open circuit:Check mechanicalfunctionality of shiftsolenoid valve (S2)using Tiptronic controlmodule plug:Check the mechanicalfunctionality of the shiftsolenoid valve (S2)directly at the valve:and wiring:9 Replace shift solenoid valve (S2)10 Replace control module• Switch off ignition• Solenoid valve plug (existingtransmission wiring) connected• Measure resistance between 'pin 15' onTiptronic control module plug and shiftsolenoid valve (S2) plug• Measure resistance between shiftsolenoid valve (S2) plug and housing.< 2 ohmsGo toStep 613 ± 2ohms (at20°C)Go toStep 8• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring)connected• Using a suitable auxiliary cable that isfuse-protected in accordance with the Go topower consumption of the shift solenoid Step 10valve, supply 'approx. 12 V batteryvoltage' to 'pin 15' of the Tiptroniccontrol module plug for a short time. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.• Pull plug off the shift solenoid valve(S2).• Using a suitable auxiliary cable that isfuse-protected in accordance with the Go topower consumption of the shift solenoid Step 10valve, supply 'approx. 12 V batteryvoltage' to the shift solenoid valve for ashort time. A distinct click should beheard <strong>from</strong> the shift solenoid valve.Replace wiringharness in thetransmission.--> EndWindinginterrupted!Go to Step 9Go to Step 8Shift solenoidvalve stiff.Go to Step 9Only replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacing controlmodules!--> End

6Check mechanicalfunctionality of shiftsolenoid valve (S2) using• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoid Go toShift solenoidvalve stiff.2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneTROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO GROUNDWork instructionDisplayOKCheck for short circuit toground with 'Tiptronic• Switch off ignitioncontrol module' plug1 disconnected and• Pull plug off Tiptronic control modulesolenoid valve plugconnected (existingtransmission wiring):Check for short circuit toground with both'Tiptronic control2 module' plug andsolenoid valve plugdisconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):Check wire in the4 transmission for shortcircuit to ground:Check directly at thevalve for short circuit to5ground in the shiftsolenoid valve (S2):• Measure resistance between 'pin 15' andground on Tiptronic control moduleplug.• Pull off solenoid valve plug (existingtransmission wiring)• Measure resistance between 'pin 15' andground on Tiptronic control moduleplug.• Measure resistance between 'pin A2' andpins 'A4, A6, A8, A10, A12, A14' onsolenoid valve plug (existingtransmission wiring).(Observe warning notes!) Remove ATF pan onthe transmission (first drain fluid) RemoveATF filter, perform visual inspection of plugand wiring:• Pull plug off the shift solenoid valve(S2).• Measure resistance betweendisconnected plug (wiring side) andground (transmission housing).• Pull plug off the shift solenoid valve(S2).• Measure resistance between plug ondisconnected shift solenoid valve (S2)and ground (transmission housing).13 ± 2ohms (at20°C)Go toStep 6infinityohmsGo toStep 3infinityohmsGo toStep 4infinityohmsGo toStep 513 ± 2ohms (at20°C)Go toStep 7If not OKGo to Step 2Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndReplace wiringharness in thetransmission.--> EndShift solenoidvalve stiff.Go to Step 8

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneTiptronic control moduleplug:Check the mechanicalfunctionality of the shift7solenoid valve (S2)directly at the valve:8 Replace shift solenoid valve (S2)9 Replace control moduleFAULT CODE 0262/P2725valve, supply 'approx. 12 V batteryvoltage' to 'pin 15' of the Tiptroniccontrol module plug for a short time. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to the shift solenoid valve for ashort time. A distinct click should beheard <strong>from</strong> the shift solenoid valve.Step 9 Go to Step 8Go toStep 9Shift solenoidvalve stiff.Go to Step 8Only replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacing controlmodules!--> EndSHIFT SOLENOID VALVE C3 (MODULATION PRESSURE) [PRESSURE CONTROL SOLENOID'E' ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctionsThe fault types 'Short circuit to B+ and Open circuit/short circuit to ground' are set after the followingconditions occur five times:• A short circuit to B+ causes the current measured by the Tiptronic control module to become 'greater than1333 mA' for a duration of 100 msec.• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come'ON' and the current measured by the Tiptronic control module is 'less than 23 mA' for a duration of 100msec.The fault type 'Electrical fault in electric circuit' is set after the following conditions occur twice:• Ignition on, voltage is less than 10.5 V for 500 msec.• The current measured by the Tiptronic control module is 'less than 23 mA' or 'greater than 1333 mA' for aduration of 500 msec.Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1, 2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Short circuit to B+': A short circuit to B+ causes the shift solenoid valve C3 (modulation pressure) tobe continually activated• 2.) 'Open circuit/short circuit to ground': A short circuit to ground prevents activation of the shift solenoidvalve C3 (modulation pressure)• 2.) 'Open circuit/short circuit to ground': An open circuit prevents activation of the shift solenoid valve C3(modulation pressure)• 3.) 'Electrical fault in electric circuit': Shift solenoid valve C3 (modulation pressure) has no or limitedfunctionAffected pinsTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin 'MB26'• Pin 2 'ground', <strong>from</strong> ground pin 'MB26'• Pin 18 'ground for shift solenoid valve C3 (modulation pressure)', to existing transmission wiring plug'pin A8'• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 30 'voltage/current for shift solenoid valve C3 (modulation pressure)', to existing transmission wiringplug 'pin A7'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shift solenoid valve C3 (modulation pressure)Fig. 18: Wiring Diagram Of Shift Solenoid Valve C3 (Modulation Pressure)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Shift solenoid valve C3 (modulation pressure)18 - Pin (18)30 - Pin (30)I - Current flowData on shift solenoid valve C3 (modulation pressure)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.0 A• Default internal resistance: 5.3 ± 0.3 ohms (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After the

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Short circuit to B+'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instructionCheck for short circuit toB+ with 'Tiptroniccontrol module' plug1 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith 'Tiptronic controlmodule' plug2 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):• Ignition off• Pull plug off Tiptronic control module• Ignition on• Measure voltage between 'pins 30, 18'and ground on Tiptronic control moduleplug.• Ignition off• Measure resistance between 'pins 30, 18'and pins' 4, 5, 15, 16, 30, 31, 41, 42' onTiptronic control module plug.• Measure resistance between 'pins 30, 18'and pins '4, 5, 15, 16, 30, 31, 41, 42' onTiptronic control module plug.DisplayOK< 0.3 VGo toStep 2infinityohmsGo toStep 4infinityohms,Go toStep 6If not OKRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 3Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End4Check mechanicalfunctionality of shiftsolenoid valve C3• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoid Go toGo to Step 5

Check the 'shift solenoid • Ignition offIf the measuredresistance is less2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne(modulation pressure)using Tiptronic controlmodule plug:valve, supply 'approx. 12 V batteryvoltage' to 'pin 30' of the Tiptroniccontrol module plug for a short time.• 'Pin 18' must be connected to ground. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.(Observe warning notes!)Remove ATF pan on the transmission (firstdrain fluid).Remove ATF filter, perform visual inspectionof plug and wiring:Step 8Check the mechanicalfunctionality of the shift5 solenoid valve C3(modulation pressure)directly at the valve:6 Replace wiring harness in the transmission7 Replace shift solenoid valve C3 (modulation pressure)8 Replace control module• Pull plug off the shift solenoid valve C3(modulation pressure).Go to• Using a suitable auxiliary cable that is Step 8fuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin A7' and ground to 'pin A8'of the shift solenoid valve for a shorttime. A distinct clicking sound should beheard immediately <strong>from</strong> the shift solenoidvalve.2. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'Shift solenoidvalve stiff.Go to Step 7(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid). Remove ATF filter.--> EndOnly replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacingcontrol modules!--> EndTROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO GROUNDDisplayWork instructionOKIf not OK

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne123456valve C3 (modulationpressure)' activation wire andthe ground supply wire for ashort circuit with respect toeach other and an opencircuit:Check the shift solenoidvalve C3 (modulationpressure) activation wire andthe ground supply wire for ashort circuit with respect toeach other:Check the shift solenoidvalve C3 (modulationpressure) activation wire andthe ground supply wire in thetransmission for a shortcircuit with respect to eachother:Check the shift solenoidvalve C3 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check the shift solenoidvalve C3 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check for short circuit toground in the shift solenoidvalve C3 (modulationpressure) activation wire:Check for short circuit toground in the shift solenoid• Pull plug off 'Tiptronic controlmodule'• Measure resistance between 'pin 30'and 'pin 18' on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 30'and 'pin 18' on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve C3 (modulation pressure)• Measure resistance between 'pinA8' and 'pin A7' on thedisconnected plug.• Measure resistance between 'pin 30'and pins '6, 17, 32, 43, 44' onTiptronic control module plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 30'and pins '6, 17, 32, 43, 44' onTiptronic control module plug.• Measure resistance between 'pin 30'and ground on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)5.3 ± 0.3ohmsGo toStep 4infinityohmsGo toStep 3infinityohmsGo toStep 12infinityohmsGo toStep 6infinityohmsGo toStep 15infinityohmsGo toStep 13infinityohmsthan the defaultvalue:Go to Step 2If the measuredresistance is'infinity ohms':Go to Step 10Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Go to Step 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 7Repair wiringharness toTiptronic control

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne789valve C3 (modulationpressure) activation wire:Check for short circuit toground in the shift solenoidvalve C3 (modulationpressure) activation wire inthe transmission:Check for short circuit toground in the coil in the shiftsolenoid valve C3(modulation pressure):Check for open circuit in theshift solenoid valve C310 (modulation pressure)activation wire and groundsupply wire:Check for open circuit in theactivation wire and groundsupply wire of the shift11solenoid valve C3(modulation pressure) in thetransmission:Check shift solenoid valveC3 (modulation pressure)12coil for open circuit andshort circuit:• Measure resistance between 'pin 30'and ground on Tiptronic controlmodule plug.(Observe warning notes!) Remove ATFpan on the transmission (first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve C3 (modulation pressure)• Measure resistance between 'pinA7' on disconnected plug (wiringside) and ground (transmissionhousing).• Measure resistance between 'pinA7' on shift solenoid valve C3(modulation pressure) and ground(transmission housing).• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance in the wiresbetween 'pin 18, 30' of Tiptroniccontrol module plug and 'pin A8,A7' of shift solenoid valve C3(modulation pressure) plug.(Observe warning notes!) Remove ATFpan on the transmission (first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Connect solenoid valve plug(existing transmission wiring)• Pull plug off the shift solenoidvalve C3 (modulation pressure)• Measure resistance between 'pin18, 30' of Tiptronic control moduleplug and 'pin A8, A7' of shiftsolenoid valve C3 (modulationpressure) plug.• Measure resistance between 'pinA7' and 'pin A8' on shift solenoidvalve C3 (modulation pressure).Go toStep 8infinityohmsGo toStep 9infinityohmsGo toStep 14< 2 ohmsGo toStep 11< 2 ohmsGo toStep 125.3 + 0.3ohms (at20°C)Go toStep 14module (existingtransmissionwiring).--> EndGo to Step 15Short circuit toground in coil.Go to Step 16Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Open circuit orshort circuit incoil.Go to Step 16

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck mechanicalfunctionality of shiftsolenoid valve C313(modulation pressure) usingTiptronic control moduleplug:Check the mechanicalfunctionality of the shift14 solenoid valve C3(modulation pressure)directly at the valve:15 Replace wiring harness in the transmission• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to'pin 30' of the Tiptronic controlmodule plug for a short time.• 'Pin 18' must be connected toground. A distinct clicking soundshould be heard immediately <strong>from</strong>the shift solenoid valve.• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to'pin A7' and ground to 'pin A8' ofthe shift solenoid valve for a shorttime.• A distinct clicking sound should beheard immediately <strong>from</strong> the shiftsolenoid valve.16 Replace shift solenoid valve C3 (modulation pressure)17 Replace control module3. Troubleshooting only for fault type: 'Electrical fault in electric circuit'Go toStep 17Go toStep 17Shift solenoidvalve stiff.Go to Step 16Shift solenoidvalve stiff.Go to Step 16(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid). Remove ATF filter.--> EndOnly replace if the wiring inthe transmission was checkedfor chafing damage andfound to be OK.--> EndSee note on replacing controlmodules!--> EndNOTE:If the fault '0364 Power supply, terminal 15' is also stored in addition tothis fault, look for the cause of the fault on the power supply side of the'Tiptronic control module'!TROUBLESHOOTING PROCEDURE ELECTRICAL FAULT IN ELECTRIC CIRCUITDisplayWork instructionIf not OKOK

• Measure resistance < 0.5 Open circuit in Tiptronic control module2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck batteryvoltage/current and1 charge voltage/current on threephasegenerator:Check terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:Check power supply4 lines for short circuitto ground:Check ground supply5 lines for short circuitto B+:Check voltage6 supply lines for opencircuit:• Engine speed > 2,000rpm.• Measure chargevoltage/ current ofgenerator.• Ignition off• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.• Ignition off• Measure resistance onTiptronic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.11.4 to14.5 VGo toStep 210.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4< 0.3 VGo toStep 5< 0.3 VGo toStep 6< 0.5ohmsGo toStep 7Charge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory andthen read out the fault memory again whileobserving the diagnostic conditions. If nofaults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '51' in fuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5Short circuit to ground in Tiptronic controlmodule plug leads 'pin 27, 28 and fuse 51'in fuse carrier at right of dashboard. Repairwire and replace faulty fuse.--> EndShort circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'. Repair wire(s) and replace faulty fuse.--> EndOpen circuit in wires to fuse carrier atright of dashboard.Repair wire(s). Check fuse--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck ground supply7lines for open circuit:Check terminal 158power supply at fuse:9FAULT CODE 0264/P0743between 'pin 1, 2 andbody ground' onTiptronic controlmodule plug.ohmsGo toStep 8• Measure voltage 10.5 Vbetween fuse plug '51 to 14.5and body ground' in Vfuse carrier at right of Go todashboard. Step 9Continue troubleshooting in accordance with the'Diagnosis/troubleshooting' tables:1. Troubleshooting only for fault type: 'Shortcircuit to B+'2. Troubleshooting only for fault type: 'Opencircuit/short circuit to ground'and body ground wires.Repair wire(s).--> EndShort circuit/contact resistance/corroded orloose connections near or in fuse carrier.Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndFollow the work instructions in the tables and lookfor the fault on the page that describes the activationof the shift solenoid valve C3 (modulationpressure).--> EndSHIFT SOLENOID VALVE UK (MODULATION PRESSURE) [TORQUE CONVERTER CLUTCHCIRCUIT ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!The torque converter lockup clutch must be closed while driving, starting in 'gear 2' with an engine speed ofapprox. '2000 rpm'. Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the statusbased on engine speed and turbine speed. Engine speed = turbine speed: Clutch is closed.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneThe fault types 'Short circuit to B+ and Open circuit/short circuit to ground' are set after the followingconditions occur five times:• A short circuit to B+ causes the current measured by the Tiptronic control module to become 'greater than1333 mA' for a duration of 100 msec.• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come'ON' and the current measured by the Tiptronic control module is 'less than 23 mA' for a duration of 100msec.The fault type 'Electrical fault in electric circuit' is set after the following conditions occur twice:• Ignition on, voltage is less than 10.5 V for 500 msec.• The current measured by the Tiptronic control module is 'less than 23 mA' or 'greater than 1333 mA' for aduration of 500 msec.Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1, 2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Short circuit to B+': A short circuit to B+ causes the shift solenoid valve UK (modulation pressure) tobe continually activated• 2.) 'Open circuit/short circuit to ground': A short circuit to ground prevents activation of the shift solenoidvalve UK (modulation pressure)• 2.) 'Open circuit/short circuit to ground': An open circuit prevents activation of the shift solenoid valveUK (modulation pressure)• 3.) 'Electrical fault in electric circuit': Shift solenoid valve UK (modulation pressure) has no or limitedfunctionAffected pinsTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin MB26• Pin 2 'ground', <strong>from</strong> ground pin MB26• Pin 5 'voltage/current for shift solenoid valve UK (modulation pressure)', to existing transmission wiringplug 'pin All'• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 43 'ground for shift solenoid valve UK (modulation pressure)', to existing transmission wiring plug'pin A12'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDiagnosis/troubleshooting G 0210Wiring diagram of shift solenoid valve UK (modulation pressure)Fig. 19: Wiring Diagram Of Shift Solenoid Valve UK (Modulation Pressure)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Shift solenoid valve UK (modulation pressure)5 - Pin (5)43 - Pin (43)I - Current flowData on shift solenoid valve UK (modulation pressure)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.0 A• Default internal resistance: 5.3 ± 0.3 ohms (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneWARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Short circuit to B+'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instructionCheck for short circuit toB+ with 'Tiptroniccontrol module' plug1 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith 'Tiptronic controlmodule' plug2 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):Check mechanicalfunctionality of shiftsolenoid valve UK4(modulation pressure)using Tiptronic controlmodule plug:• Ignition off• Pull plug off Tiptronic control module• Ignition on• Measure voltage between 'pins 5, 43' andground on Tiptronic control module plug.• Ignition off• Measure resistance between 'pins 5, 43'and pins '4, 15, 16, 30, 31, 41, 42' onTiptronic control module plug.• Measure resistance between 'pins 5, 43'and pins '4, 15, 16, 30, 31, 41, 42' onTiptronic control module plug.• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin 5' of the Tiptronic controlmodule plug for a short time.• 'Pin 43' must be connected to ground. Adistinct clicking sound should be heardDisplayOK< 0.3 VGo toStep 2infinityohmsGo toStep 4infinityohmsGo toStep 6Go toStep 8If not OKRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 3Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 5

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneimmediately <strong>from</strong> the shift solenoidvalve.(Observe warning notes!)Remove ATF pan on the transmission (firstdrain fluid).Remove ATF filter, perform visual inspectionof plug and wiring:Check the mechanicalfunctionality of the shift5 solenoid valve UK(modulation pressure)directly at the valve:6 Replace wiring harness in the transmission• Pull plug off the shift solenoid valve UK(modulation pressure).• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin All' and ground to 'pinA12' of the shift solenoid valve for ashort time. A distinct clicking soundshould be heard immediately <strong>from</strong> theshift solenoid valve.7 Replace shift solenoid valve UK (modulation pressure)8 Replace control moduleGo toStep 8Shift solenoidvalve stiff.Go to Step 7(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid). Remove ATF filter.--> EndOnly replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacingcontrol modules!--> End2. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO GROUNDDisplayWork instructionOK1Check the 'shift solenoidvalve UK (modulationpressure)' activation wireand the ground supply wirefor a short circuit withrespect to each other and anopen circuit:• Ignition off• Pull plug off 'Tiptronic controlmodule'• Measure resistance between 'pin 5'and 'pin 43' on Tiptronic controlmodule plug.5.3 ± 0.3ohmsGo toStep 4If not OKIf the measuredresistance is lessthan the defaultvalue:Go to Step 2 If themeasuredresistance is'infinity ohms':

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne234567Check the shift solenoidvalve UK (modulationpressure) activation wire andthe ground supply wire for ashort circuit with respect toeach other:Check the shift solenoidvalve UK (modulationpressure) activation wire andthe ground supply wire in thetransmission for a shortcircuit with respect to eachother:Check the shift solenoidvalve UK (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check the shift solenoidvalve UK (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check for short circuit toground in the shift solenoidvalve UK (modulationpressure) activation wire:Check for short circuit toground in the shift solenoidvalve UK (modulationpressure) activation wire:• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 5'and 'pin 43' on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve UK (modulation pressure).• Measure resistance between 'pinA12' and 'pin All' on thedisconnected plug.• Measure resistance between 'pin 5'and pins '6, 17, 18, 32, 44' onTiptronic control module plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 5'and pins '6, 17, 18, 32, 44' onTiptronic control module plug.• Measure resistance between 'pin 5'and ground on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 5'and ground on Tiptronic controlmodule plug.(Observe warning notes!) Remove ATFpan on the transmission (first drain fluid).infinityohmsGo toStep 3infinityohmsGo toStep 12infinityohmsGo toStep 6infinityohmsGo toStep 15infinityohmsGo toStep 13infinityohmsGo toStep 8Go to Step 10Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Go to Step 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 7Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

Check mechanicalfunctionality of shift• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne89Check for short circuit toground in the shift solenoidvalve UK (modulationpressure) activation wire inthe transmission:Check for short circuit toground in the coil in the shiftsolenoid valve UK(modulation pressure):Check for open circuit in theshift solenoid valve UK10 (modulation pressure)activation wire and groundsupply wire:Check for open circuit in theactivation wire and groundsupply wire of the shift11solenoid valve UK(modulation pressure) in thetransmission:Check shift solenoid valveUK (modulation pressure)12coil for open circuit andshort circuit:Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve UK (modulation pressure).• Measure resistance between 'pinAll' on disconnected plug (wiringside) and ground (transmissionhousing).• Measure resistance between 'pinAll' on shift solenoid valve UK(modulation pressure) and ground(transmission housing).• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance in the wiresbetween 'pin 43, 5' of Tiptroniccontrol module plug and 'pin A12,All' of shift solenoid valve UK(modulation pressure) plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Connect solenoid valve plug(existing transmission wiring)• Pull plug off the shift solenoidvalve UK (modulation pressure)• Measure resistance between 'pin 43,5' of Tiptronic control module plugand 'pin A12, All' of shift solenoidvalve UK (modulation pressure)plug.• Measure resistance between 'pinAll' and 'pin A12' on shift solenoidvalve UK (modulation pressure).infinityohmsGo toStep 9infinityohmsGo toStep 14< 2 ohmsGo toStep 11< 2 ohmsGo toStep 125.3 ± 0.3ohms (at20°C)Go toStep 14Go to Step 15Short circuit toground in coil.Go to Step 16Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Open circuit orshort circuit incoil.Go to Step 16

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennesolenoid valve UK(modulation pressure) usingTiptronic control module13 plug:Check the mechanicalfunctionality of the shift14 solenoid valve UK(modulation pressure)directly at the valve:15 Replace wiring harness in the transmission'approx. 12 V battery voltage' to'pin 5' of the Tiptronic controlmodule plug for a short time.• 'Pin 43' must be connected toground. A distinct clicking soundshould be heard immediately <strong>from</strong>the shift solenoid valve.• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to'pin All' and ground to 'pin A12' ofthe shift solenoid valve for a shorttime.• A distinct clicking sound should beheard immediately <strong>from</strong> the shiftsolenoid valve.16 Replace shift solenoid valve UK (modulation pressure)17 Replace control module3. Troubleshooting only for fault type: 'Electrical fault in electric circuit'Go toStep 17Go toStep 17Shift solenoidvalve stiff.Go to Step 16Shift solenoidvalve stiff.Go to Step 16(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid). Remove ATF filter.--> EndOnly replace if the wiring inthe transmission was checkedfor chafing damage andfound to be OK.--> EndSee note on replacing controlmodules!--> EndNOTE:If the fault '0364 Power supply, terminal 15' is also stored in addition tothis fault, look for the cause of the fault on the power supply side of the'Tiptronic control module'!TROUBLESHOOTING PROCEDURE ELECTRICAL FAULT IN ELECTRIC CIRCUITDisplayWork instructionIf not OKOKCheck battery • Engine speed > 2,000 11.4 toCharge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory and

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennevoltage/current andcharge voltage/current on threephase1generator:Check terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:Check power supply4 lines for short circuitto ground:Check ground supply5 lines for short circuitto B+:Check voltage6 supply lines for opencircuit:Check ground supply7lines for open circuit:rpm.• Measure chargevoltage/ current ofgenerator.• Ignition off• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.• Ignition off• Measure resistance onTiptronic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.• Measure resistancebetween 'pin 1, 2 andbody ground' onTiptronic controlmodule plug.14.5 VGo toStep 210.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4< 0.3 VGo toStep 5< 0.3 VGo toStep 6< 0.5ohmsGo toStep 7< 0.5ohmsGo toStep 8then read out the fault memory again whileobserving the diagnostic conditions. If nofaults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '51' in fuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5Short circuit to ground in Tiptronic controlmodule plug leads' pin 27, 28 and fuse 51'in fuse carrier at right of dashboard.Repair wire and replace faulty fuse.--> EndShort circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'.Repair wire(s) and replace faulty fuse.--> EndOpen circuit in wires to fuse carrier atright of dashboard.Repair wire(s). Check fuse.--> EndOpen circuit in Tiptronic control moduleand body ground wires.Repair wire(s).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck terminal 158power supply at fuse:9FAULT CODE 0266/P0798• Measure voltage 10.5 Vbetween fuse plug '51 to 14.5and body ground' in Vfuse carrier at right of Go todashboard. Step 9Continue troubleshooting in accordance with the'Diagnosis/troubleshooting' tables:1. Troubleshooting only for fault type: 'Shortcircuit to B+'2. Troubleshooting only for fault type: 'Opencircuit/short circuit to ground'Short circuit/contact resistance/corroded orloose connections near or in fuse carrier.Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndFollow the work instructions in the tables and lookfor the fault on the page that describes the activationof the shift solenoid valve UK (modulationpressure).--> EndSHIFT SOLENOID VALVE C1 (MODULATION PRESSURE) [PRESSURE CONTROL SOLENOID'C' ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctionsThe fault types 'Short circuit to B+ and Open circuit/short circuit to ground' are set after the followingconditions occur five times:• A short circuit to B+ causes the current measured by the Tiptronic control module to become 'greater than

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne1333 mA' for a duration of 100 msec.• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come'ON' and the current measured by the Tiptronic control module is 'less than 23 mA' for a duration of 100msec.The fault type 'Electrical fault in electric circuit' is set after the following conditions occur twice:• Ignition on, voltage is less than 10.5 V for 500 msec.• The current measured by the Tiptronic control module is 'less than 23 mA' or 'greater than 1333 mA' for aduration of 500 msec.Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1, 2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Short circuit to B+': A short circuit to B+ causes the shift solenoid valve C1 (modulation pressure) tobe continually activated• 2.) 'Open circuit/short circuit to ground': A short circuit to ground prevents activation of the shift solenoidvalve C1 (modulation pressure)• 2.) 'Open circuit/short circuit to ground': An open circuit prevents activation of the shift solenoid valve C1(modulation pressure)• 3.) 'Electrical fault in electric circuit': Shift solenoid valve C1 (modulation pressure) has no or limitedfunctionAffected pinsTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin MB26• Pin 2 'ground', <strong>from</strong> ground pin MB26• Pin 6 'ground for shift solenoid valve C1 (modulation pressure)', to existing transmission wiring plug 'pinA4'• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 42 'voltage/current for shift solenoid valve C1 (modulation pressure)', to existing transmission wiringplug 'pin A3'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shift solenoid valve C1 (modulation pressure)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 20: Wiring Diagram Of Shift Solenoid Valve C1 (Modulation Pressure)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Shift solenoid valve C1 (modulation pressure)6 - Pin (6)42 - Pin (42)I - Current flowData on shift solenoid valve C1 (modulation pressure)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.0 A• Default internal resistance: 5.3 ± 0.3 ohms (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!

(Observe warning notes!)2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Short circuit to B+'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instructionCheck for short circuit toB+ with 'Tiptroniccontrol module' plug1 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith 'Tiptronic controlmodule' plug2 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):Check mechanicalfunctionality of shiftsolenoid valve C14(modulation pressure)using Tiptronic controlmodule plug:• Ignition off• Pull plug off Tiptronic control module• Ignition on• Measure voltage between 'pins 42, 6' andground on Tiptronic control module plug.• Ignition off• Measure resistance between 'pins 42, 6'and pins '4, 5, 15, 16, 30, 31, 41' onTiptronic control module plug.• Measure resistance between 'pins 42, 6'and pins '4, 5, 15, 16, 30, 31, 41' onTiptronic control module plug.• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin 42' of the Tiptroniccontrol module plug for a short time.• 'Pin 6' must be connected to ground. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.DisplayOK< 0.3 VGo toStep 2infinityohmsGo toStep 4infinityohms,Go toStep 6Go toStep 8If not OKRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 3Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 5

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck the mechanicalfunctionality of the shift5 solenoid valve C1(modulation pressure)directly at the valve:6 Replace wiring harness in the transmissionRemove ATF pan on the transmission (firstdrain fluid).Remove ATF filter, perform visual inspectionof plug and wiring:7 Replace shift solenoid valve C1 (modulation pressure)8 Replace control module• Pull plug off the shift solenoid valve C1(modulation pressure).• Using a suitable auxiliary cable that is Go tofuse-protected in accordance with the Step 8power consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin A3' and ground to 'pin A4'of the shift solenoid valve for a shorttime. A distinct clicking sound should beheard immediately <strong>from</strong> the shift solenoidvalve.2. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'Shift solenoidvalve stiff.Go to Step 7(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid). Remove ATF filter.--> EndOnly replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacingcontrol modules!--> EndTROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO GROUNDDisplayWork instructionIf not OKOK1Check the 'shift solenoidvalve C1 (modulationpressure)' activation wire andthe ground supply wire for ashort circuit with respect toeach other and an opencircuit:• Ignition off• Pull plug off 'Tiptronic controlmodule'• Measure resistance between 'pin 42'and 'pin 6' on Tiptronic controlmodule plug.Check the shift solenoid • Pull off solenoid valve plug5.3 ± 0.3ohmsGo toStep 4If the measuredresistance is lessthan the defaultvalue:Go to Step 2 If themeasuredresistance is'infinity ohms':Go to Step 10Repair wiringharness to

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne234567valve C1 (modulationpressure) activation wire andthe ground supply wire for ashort circuit with respect toeach other:Check the shift solenoidvalve C1 (modulationpressure) activation wire andthe ground supply wire in thetransmission for a shortcircuit with respect to eachother:Check the shift solenoidvalve C1 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check the shift solenoidvalve C1 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check for short circuit toground in the shift solenoidvalve C1 (modulationpressure) activation wire:Check for short circuit toground in the shift solenoidvalve C1 (modulationpressure) activation wire:Check for short circuit to(existing transmission wiring)• Measure resistance between 'pin 42'and 'pin 6' on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve C1 (modulation pressure).• Measure resistance between 'pinA4' and 'pin A3' on thedisconnected plug.• Measure resistance between 'pin 42'and pins '17, 18, 32, 43, 44' onTiptronic control module plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 42'and pins '17, 18, 32, 43, 44' onTiptronic control module plug.• Measure resistance between 'pin 42'and ground on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 42'and ground on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:infinityohmsGo toStep 3infinityohmsGo toStep 12infinityohmsGo toStep 6infinityohmsGo toStep 15infinityohmsGo toStep 13infinityohmsGo toStep 8infinityTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Go to Step 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 7Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne89ground in the shift solenoidvalve C1 (modulationpressure) activation wire inthe transmission:Check for short circuit toground in the coil in the shiftsolenoid valve C1(modulation pressure):Check for open circuit in theshift solenoid valve C110 (modulation pressure)activation wire and groundsupply wire:Check for open circuit in theactivation wire and groundsupply wire of the shift11solenoid valve C1(modulation pressure) in thetransmission:Check shift solenoid valveC1 (modulation pressure)12coil for open circuit andshort circuit:• Pull plug off the shift solenoidvalve C1 (modulation pressure).• Measure resistance between 'pinA3' on disconnected plug (wiringside) and ground (transmissionhousing).• Measure resistance between 'pinA3' on shift solenoid valve C1(modulation pressure) and ground(transmission housing).• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance in the wiresbetween 'pin 6, 42' of Tiptroniccontrol module plug and 'pin A4,A3' of shift solenoid valve C1(modulation pressure) plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Connect solenoid valve plug(existing transmission wiring)• Pull plug off the shift solenoidvalve C1 (modulation pressure).• Measure resistance between 'pin 6,42' of Tiptronic control moduleplug and 'pin A4, A3' of shiftsolenoid valve C1 (modulationpressure) plug.• Measure resistance between 'pinA3' and 'pin A4' on shift solenoidvalve C1 (modulation pressure).ohmsGo toStep 9infinityohmsGo toStep 14< 2 ohmsGo toStep 11< 2 ohmsGo toStep 125.3 ± 0.3ohms (at20°C)Go toStep 14Go to Step 15Short circuit toground in coil.Go to Step 16Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Open circuit orshort circuit incoil.Go to Step 16Check mechanical13functionality of shiftsolenoid valve C1(modulation pressure) usingTiptronic control module• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to'pin 42' of the Tiptronic controlmodule plug for a short time.Go toStep 17Shift solenoidvalve stiff.Go to Step 16

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneplug:• 'Pin 6' must be connected toground. A distinct clicking soundshould be heard immediately <strong>from</strong>the shift solenoid valve.Check the mechanicalfunctionality of the shift14 solenoid valve C1(modulation pressure)directly at the valve:15 Replace wiring harness in the transmission• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to'pin A3' and ground to 'pin A4' ofthe shift solenoid valve for a shorttime.• A distinct clicking sound should beheard immediately <strong>from</strong> the shiftsolenoid valve.16 Replace shift solenoid valve C1 (modulation pressure)17 Replace control module3. Troubleshooting only for fault type: 'Electrical fault in electric circuit'Go toStep 17Shift solenoidvalve stiff.Go to Step 16(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid). Remove ATF filter.--> EndOnly replace if the wiring inthe transmission was checkedfor chafing damage andfound to be OK.--> EndSee note on replacing controlmodules!--> EndNOTE:If the fault '0364 Power supply, terminal 15' is also stored in addition tothis fault, look for the cause of the fault on the power supply side of the'Tiptronic control module'!TROUBLESHOOTING PROCEDURE ELECTRICAL FAULT IN ELECTRIC CIRCUITDisplayWork instructionIf not OKOK1 Check batteryvoltage/current andcharge voltage/current on three-• Engine speed > 2,000rpm.• Measure chargevoltage/ current of11.4 to14.5 VGo toStep 2Charge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory andthen read out the fault memory again whileobserving the diagnostic conditions. If nofaults are stored in memory:

Check terminal 15• Measure voltagebetween fuse plug '5110.5 Vto 14.5Short circuit/contact resistance/corroded orloose connections near or in fuse carrier.2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennephase generator: generator. --> EndIf the fault is still present:Go to Step 2• Ignition offCheck terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:Check power supply4 lines for short circuitto ground:Check ground supply5 lines for short circuitto B+:Check voltage6 supply lines for opencircuit:Check ground supply7lines for open circuit:• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.• Ignition off• Measure resistance onTiptronic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.• Measure resistancebetween 'pin 1, 2 andbody ground' onTiptronic controlmodule plug.10.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4< 0.3 VGo toStep 5< 0.3 VGo toStep 6< 0.5ohmsGo toStep 7< 0.5ohmsGo toStep 8Check fuse '51' in fuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5Short circuit to ground in Tiptronic controlmodule plug leads 'pin 27, 28 and fuse 51'in fuse carrier at right of dashboard. Repairwire and replace faulty fuse.--> EndShort circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'.Repair wire(s) and replace faulty fuse.--> EndOpen circuit in wires to fuse carrier atright of dashboard.Repair wire(s). Check fuse.--> EndOpen circuit in Tiptronic control moduleand body ground wires.Repair wire(s).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennepower supply at fuse:89FAULT CODE 0268/P0748and body ground' in Vfuse carrier at right of Go todashboard. Step 9Continue troubleshooting in accordance with the'Diagnosis/troubleshooting' tables:1. Troubleshooting only for fault type: 'Shortcircuit to B+'2. Troubleshooting only for fault type: 'Opencircuit/short circuit to ground'Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndFollow the work instructions in the tables and lookfor the fault on the page that describes the activationof the shift solenoid valve C1 (modulationpressure).--> EndMODULATION PRESSURE SOLENOID VALVE (MAIN) [PRESSURE CONTROL SOLENOID 'A'ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctionsThe fault types 'Short circuit to B+ and Open circuit/short circuit to ground' are set after the followingconditions occur five times:• A short circuit to B+ causes the current measured by the Tiptronic control module to become 'greater than1333 mA' for a duration of 100 msec. When this fault type is detected, the Tiptronic control module sendsa signal to the DME control module to limit the torque. This is designed to prevent clutch slippage.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come'ON' and the current measured by the Tiptronic control module is 'less than 23 mA' for a duration of 100msec.The fault type 'Electrical fault in electric circuit' is set after the following conditions occur twice:• Ignition on, voltage is less than 10.5 V for 500 msec.• The current measured by the Tiptronic control module is 'less than 23 mA' or 'greater than 1333 mA' for aduration of 500 msec.POSSIBLE CAUSES OF FAULTNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1, 2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Short circuit to B+': A short circuit to B+ causes the modulation pressure solenoid valve (main) to becontinually activated• 2.) 'Open circuit/short circuit to ground': A short circuit to ground prevents activation of the modulationpressure solenoid valve (main)• 2.) 'Open circuit/short circuit to ground': An open circuit prevents activation of the modulation pressuresolenoid valve (main)• 3.) 'Electrical fault in electric circuit': Modulation pressure solenoid valve (main) has no or limitedfunctionAffected pinsTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin MB26• Pin 2 'ground', <strong>from</strong> ground pin MB26• Pin 17 'ground for modulation pressure solenoid valve (main)', to existing transmission wiring plug 'pinA14'• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 31 'voltage/current for modulation pressure solenoid valve (main)', to existing transmission wiringplug 'pin A13'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of modulation pressure solenoid valve (main)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 21: Wiring Diagram Of Modulation Pressure Solenoid Valve (Main)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Modulation pressure solenoid valve (main)17 - Pin (17)31 - Pin (31)I - Current flowData to modulation pressure solenoid valve (main)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.0 A• Default internal resistance: 5.3 ± 0.3 ohms (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!

(Observe warning notes!)2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Short circuit to B+'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instructionCheck for short circuit toB+ with 'Tip-toniccontrol module' plug1 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith 'Tiptronic controlmodule' plug2 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):Check mechanicalfunctionality ofmodulation pressure4solenoid valve (main)using Tiptronic controlmodule plug:• Ignition off• Pull plug off Tiptronic control module• Ignition on• Measure voltage between 'pins 31, 17' andground on Tiptronic control module plug.• Ignition off• Measure resistance between 'pins 31, 17'and pins '4, 5, 15, 16, 30, 41, 42' onTiptronic control module plug.• Measure resistance between 'pins 31, 17'and pins '4, 5, 15, 16, 30, 41, 42' onTiptronic control module plug.DisplayOK< 0.3 VGo toStep 2infinityohmsGo toStep 4infinityohmsGo toStep 6• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoid Go tovalve, supply 'approx. 12 V batteryStep 8voltage' to 'pin 31' of the Tiptronic controlmodule plug for a short time.• 'Pin 17' must be connected to ground. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.If not OKRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 3Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 5

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck the mechanicalfunctionality of the5 modulation pressuresolenoid valve (main)directly at the valve:6 Replace wiring harness in the transmissionRemove ATF pan on the transmission (firstdrain fluid).Remove ATF filter, perform visual inspectionof plug and wiring:7 Replace modulation pressure solenoid valve (main)8 Replace control module• Pull plug off the modulation pressuresolenoid valve (main).• Using a suitable auxiliary cable that is Go tofuse-protected in accordance with the Step 8power consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin A13' and ground to 'pinA14' of the shift solenoid valve for a shorttime. A distinct clicking sound should beheard immediately <strong>from</strong> the shift solenoidvalve.2. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'Shift solenoidvalve stiff.Go to Step 7(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid).Remove ATF filter.--> EndOnly replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacingcontrol modules!--> EndTROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO GROUNDDisplayWork instructionIf not OKOK1Check the 'modulationpressure solenoid valve(main)' activation wire andthe ground supply wire for ashort circuit with respect toeach other and an opencircuit:• Ignition off• Pull plug off Tiptronic controlmodule• Measure resistance between 'pin 31'and 'pin 17' on Tiptronic controlmodule plug.5.3 ± 0.3ohmsGo toStep 4If the measuredresistance is lessthan the defaultvalue:Go to Step 2If the measuredresistance is'infinity ohms':Go to Step 10Repair wiring

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne234567Check the modulationpressure solenoid valve(main) activation wire andthe ground supply wire for ashort circuit with respect toeach other:Check the modulationpressure solenoid valve(main) activation wire andthe ground supply wire inthe transmission for a shortcircuit with respect to eachother:Check the modulationpressure solenoid valve(main) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respectto each other:Check the modulationpressure solenoid valve(main) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respectto each other:Check for short circuit toground in the modulationpressure solenoid valve(main) activation wire:Check for short circuit toground in the modulationpressure solenoid valve(main) activation wire:• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 31'and 'pin 17' on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the modulationpressure solenoid valve (main).• Measure resistance between 'pinA14' and 'pin A13' on thedisconnected plug.• Measure resistance between 'pin 31'and pins '6, 18, 32, 43, 44' onTiptronic control module plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 31'and pins '6, 18, 32, 43, 44' onTiptronic control module plug.• Measure resistance between 'pin 31'and ground on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 31'and ground on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinfinityohmsGo toStep 3harness toTiptronic controlmodule (existingtransmissionwiring).--> EndinfinityohmsGo Go to Step 15Mto Step 12infinityohmsGo toStep 6infinityohmsGo toStep 15infinityohmsGo toStep 13infinityohmsGo toStep 8Go to Step 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 7Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

Check mechanicalfunctionality of modulation• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to Go to Shift solenoid2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneinspection of plug and wiring:89Check for short circuit toground in the modulationpressure solenoid valve(main) activation wire in thetransmission:Check for short circuit toground in the modulationpressure solenoid valve(main) coil:Check for open circuit in themodulation pressure10 solenoid valve (main)activation wire and groundsupply wire:Check for open circuit in themodulation pressuresolenoid valve (main)11activation wire and groundsupply wire in thetransmission:Check modulation pressuresolenoid valve (main) coil12for open circuit and shortcircuit:• Pull plug off the modulationpressure solenoid valve (main).• Measure resistance between 'pinA13' on disconnected plug (wiringside) and ground (transmissionhousing).• Measure resistance between 'pinA13' on modulation pressuresolenoid valve (main) and ground(transmission housing).• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance in the wiresbetween 'pin 17, 31' of Tiptroniccontrol module plug and 'pin A14,A13' of modulation pressuresolenoid valve (main) plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Connect solenoid valve plug(existing transmission wiring)• Pull plug off the modulationpressure solenoid valve (main).• Measure resistance between 'pin17, 31' of Tiptronic control moduleplug and 'pin A14, A13' ofmodulation pressure solenoid valve(main) plug.• Measure resistance between 'pinA13' and 'pin A14' on modulationpressure solenoid valve (main).infinityohmsGo toStep 9infinityohmsGo toStep 14< 2 ohmsGo toStep 11< 2 ohmsGo toStep 125.3 ± 0.3ohms (at20°C)Go toStep 14Go to Step 15Short circuit toground in coil.Go to Step 16Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Open circuit orshort circuit incoil.Go to Step 16

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennepressure solenoid valve(main) using Tip-toniccontrol module plug:13Check the mechanicalfunctionality of the14 modulation pressuresolenoid valve (main)directly at the valve:15 Replace wiring harness in the transmission16 Replace modulation pressure solenoid valve (main)17 Replace control module'pin 31' of the Tiptronic controlmodule plug for a short time.• 'Pin 17' must be connected toground. A distinct clicking soundshould be heard immediately <strong>from</strong>the shift solenoid valve.3. Troubleshooting only for fault type: 'Electrical fault in electric circuit'Step 17• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' toGo to'pin A13' and ground to 'pin A14' ofStep 17the shift solenoid valve for a shorttime.• A distinct clicking sound should beheard immediately <strong>from</strong> the shiftsolenoid valve.valve stiff.Go to Step 16Shift solenoidvalve stiff.Go to Step 16(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid).Remove ATF filter.--> EndOnly replace if the wiring inthe transmission was checkedfor chafing damage and foundto be OK.--> EndSee note on replacing controlmodules!--> EndNOTE:If the fault '0364 Power supply, terminal 15' is also stored in addition tothis fault, look for the cause of the fault on the power supply side of the'Tiptronic control module'!TROUBLESHOOTING PROCEDURE ELECTRICAL FAULT IN ELECTRIC CIRCUITDisplayWork instructionIf not OKOKCheck battery • Engine speed > 2,000 11.4 toCharge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory and

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennevoltage/current andcharge voltage/current on threephase1generator:Check terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:Check power supply4 lines for short circuitto ground:Check ground supply5 lines for short circuitto B+:Check voltage6 supply lines for opencircuit:Check ground supply7lines for open circuit:rpm.• Measure chargevoltage/ current ofgenerator.• Ignition off• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.• Ignition off• Measure resistance onTip-tonic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.• Measure resistancebetween 'pin 1,2 andbody ground' onTiptronic controlmodule plug.14.5 VGo toStep 210.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4< 0.3 VGo toStep 5< 0.3 VGo toStep 6< 0.5ohmsGo toStep 7< 0.5ohmsGo toStep 8then read out the fault memory again whileobserving the diagnostic conditions. If nofaults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '51' in fuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5Short circuit to ground in Tiptronic controlmodule plug leads 'pin 27, 28 and fuse 51'in fuse carrier at right of dashboard. Repairwire and replace faulty fuse.--> EndShort circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'.Repair wire(s) and replace faulty fuse.--> EndOpen circuit in wires to fuse carrier atright of dashboard.Repair wire(s). Check fuse.--> EndOpen circuit in Tiptronic control moduleand body ground wires. Repair wire(s).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck terminal 158power supply at fuse:9FAULT CODE 0293 / P0705• Measure voltage 10.5 Vbetween fuse plug '51 to 14.5and body ground' in Vfuse carrier at right of Go todashboard. Step 9Continue troubleshooting in accordance with the'Diagnosis/troubleshooting' tables:1. Troubleshooting only for fault type: 'Shortcircuit to B+'2. Troubleshooting only for fault type: 'Opencircuit/short circuit to ground'Short circuit/contact resistance/corroded orloose connections near or in fuse carrier.Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndFollow the work instructions in the tables and lookfor the fault on the page that describes the activationof the modulation pressure solenoid valve (main).--> EndMULTI-FUNCTION SWITCH (PRND) [TRANSMISSION RANGE SENSOR CIRCUITMALFUNCTION (PRNDL INPUT)]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the 9588 Porsche System Tester II to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditions• Ignition on• Internal Tiptronic control module function test• Selector lever switch 'PRND' actuatedSwitch position and error messageSWITCH POSITION AND ERROR MESSAGESwitch positionA (pin 1) B (pin 7) c (pin 9) PA (pin 5) MessageP X 0 0 X PR X X 0 0 RN 0 X 0 X ND 0 X X 0 DX X X X Fault 1*X 0 X X Fault 1*Switch positions producing fault indications:X 0 X 0 Fault 1*0 0 X X Fault 1*0 0 0 0 Fault 2*

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneContacts closed (ON): X0 0 0 X Fault 1*X 0 0 0 Fault 1*0 0 X 0 Fault 1*X X X 0 Fault 1*0 X 0 0 Fault 1*Contacts open (OFF) OPossible causes of fault• 'Implausible signal', error message '1 *' in the table shown above• 'No signal/communication', error message '2*' in the table shown aboveAffected pinsTiptronic control module plug:• Pin 10 'position switch B', <strong>from</strong> multi-function switch 'pin C7'• Pin 22 'position switch PA', <strong>from</strong> multi-function switch 'pin C5'• Pin 36 'position switch C', <strong>from</strong> multi-function switch 'pin C9'• Pin 47 'position switch A', <strong>from</strong> multi-function switch 'pin C1'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of multi-function switch (PRND)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 22: Wiring Diagram Of Multi-Function Switch (PRND)Courtesy of PORSCHE OF NORTH AMERICA, INC.Data on multi-function switch (PRND)• Max. current input: 15 mA (at 16.5 V)NOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unit

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennemust be checked as OK. Please observe the coding of the control module. Afterthe test drive, read out the fault memory with the 9588 Porsche System Tester IIagain. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK• Ignition onCheck 'selector lever cable'1setting:2 Visual inspection:• Connect 9588 Porsche SystemTester II• Select the menu item 'Inputsignals - Multi-function switch'• Check selector lever positionsone-by-one and compare themwith the display in theinstrument cluster and on the9588 Porsche System Tester II• Check all relevant plugconnections and wires fordamageMeasurement '3a':Go to Step 2Go to Step 3Correctadjustment ofthe 'selectorlever cable'.--> EndRepair wiringharness--> End3 Check multi-function switch:• Ignition off• Disconnect plug <strong>from</strong> multifunctionswitch• Move selector lever to position'P'• Measure resistance between 'pinC3' and 'pins C1 and C5' of theswitch.• Measure resistance at switchbetween 'pin C3' and 'pin C7, pinC9'Measurement '3b':• Move selector lever to position'R'• Measure resistance at switchbetween 'pin C3' and 'pin C1, pinC7'• Measure resistance at switchbetween 'pin C3' and 'pin C5, pinC9'< 5 ohmsinfinity ohmsgo tomeasurement'3b'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneMeasurement '3d':Check ground supply for4multi-function switch:Check position switch wiresbetween Tiptronic control5module and multi-functionswitch for short circuit to B+:Check position switch wiresbetween Tiptronic control6 module and multi-functionswitch for short circuit toground:Check position switch wiresbetween Tiptronic control7 module and multi-functionswitch for open circuit andincorrect assignment:• Move selector lever to position'N' EndMulti-functionswitch faultyGo to Step 8Multi-functionswitch faultyGo to Step 8Repair wiringharness--> EndRepair wiringharness--> EndRepair wiringharness--> EndRepair wiringharness--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFAULT CODE 0300 / P0711 / P0712 / P0713ATF TEMPERATURE SENSOR [TRANSMISSION FLUID TEMPERATURE SENSOR 'A' CIRCUITLOW/HIGH/RANGE/PERFORMANCE]NOTE:The ignition must be switched off and then switched on again in order todisplay a fault indication in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester IINo. 9588 to check the transmission status and the actual values ofthe shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control unit function test was completed successfully• Engine running without malfunction, speed '> 400 rpm'The fault types 'open circuit/short circuit to B+ (CODE: P0712)' are set after the followingconditions occur 12 times:NOTE:The value obtained before the fault is set is used as a substitute value!• Engine temperature normal• Tiptronic control not in limp-home mode• Vehicle driving time > 10 min• The value obtained corresponds to the minimum value '- 43°C' for more than 1 secondThe fault type 'short circuit to ground (CODE: P0713)' is set after the following conditions occur 30times:NOTE:The value obtained before the fault is set is used as a substitute value!• The value obtained corresponds to the maximum value '200°C' for more than 10 seconds

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneThe fault type 'implausible signal (CODE: P0711)' is set after the following conditions occur once:• Selector lever position 'D, R'• ATF temperature during initialization phase < 30°C• ATF temperature during initialization phase = maximum ATF temperature during a 15 min period ± 5°CPossible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'open circuit/short circuit to B+': ATF temperature sensor sticks in lower temperature range• 2.) 'Short circuit to ground': ATF temperature sensor sticks in upper temperature range• 3.) 'implausible signal': ATF temperature sensor sticks in middle temperature rangeAffected pinsTiptronic control unit plug:• Pin 8 'ATF temperature sensor ground', to existing transmission wiring plug 'pin B2'• Pin 45 'ATF temperature sensor voltage/current', to existing transmission wiring plug 'pin B1'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of ATF temperature sensorFig. 23: Wiring Diagram Of ATF Temperature SensorCourtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control unit2 - ATF temperature sensor8 - Pin (8)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne45 - Pin (45)I - ATF temperature sensor current flowData on ATF temperature sensor• Sensor type: Thermistor• Current input at 145°C: 2 mA• Internal resistance at -30°C: 44 ± 6.6 kohms• Internal resistance at 10°C: 6.445 ± 0.645 kohms• Internal resistance at 110°C: 247 ± 16 ohms• Internal resistance at 145°C: 111 ± 6 ohmsNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control unit plug connection and the 'pins'on the 'existing transmission wiring' plug connection are neither damaged norcorroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control unit. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlunit' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Open circuit/short circuit to B+'TROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO B+DisplayWork instructionIf not OKOK1 Check for short circuit to B+with 'Tiptronic control unit'plug disconnected and sensor• Switch off ignition• Pull plug off Tiptronic controlunit• Switch on ignition< 0.3 VGo toRepair wiring harnessto Tiptronic control unit(existing transmission

TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO GROUND2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneplug connected (existingtransmission wiring):Check for short circuit withboth 'Tiptronic control unit'2 plug and sensor valve plugdisconnected (existingtransmission wiring):Check for open circuit withboth 'Tiptronic control unit'3 plug and sensor plugdisconnected (existingtransmission wiring):• Measure voltage between 'pins8, 45' and ground on Tiptroniccontrol unit plug.• Switch off ignition• Measure resistance on sensorplug (existing transmissionwiring) between 'pins B1' andpins: 'B2, B3, B4, B5, B6, B7,B8'.• Measure resistance between'pins 8, 45' on Tiptroniccontrol unit plug and 'pins B1,B2' of sensor plug (existingtransmission wiring).(Observe warning notes!)Remove ATF pan on thetransmission (first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:Step 2infinityohmsGo toStep 3< 5ohmsGo toStep 4wiring).--> EndRepair wiring harnessto Tiptronic control unit(existing transmissionwiring).--> EndRepair wiring harnessto Tiptronic control unit(existing transmissionwiring).--> EndCheck wires in the4transmission for open circuit:5 Replace ATF temperature sensor6 Replace Tiptronic control unit• Sensor plug (existingtransmission wiring)connected• Pull plug off ATF temperaturesensor in the transmission• Measure resistance between'pins 8, 45' on Tiptroniccontrol unit plug and 'pins B1,B2' on ATF temperaturesensor plug.< 5ohmsGo toStep 5Replace wiring harnessin the transmission.--> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.--> EndIf fault has not been remedied,then:Go to Step 6See note on replacing controlunits!--> End2. Troubleshooting only for fault type: 'Short circuit to ground'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneWork instructionCheck for short circuit toground with 'Tiptronic control1 unit' plug disconnected andsensor plug connected (existingtransmission wiring):Check for short circuit toground with 'Tiptronic control2 unit' plug disconnected andsensor plug connected (existingtransmission wiring):Check for short circuit withboth 'Tiptronic control unit'3 plug and sensor valve plugdisconnected (existingtransmission wiring):Check wire in the transmission4for short circuit to ground:5 Replace ATF temperature sensor6 Replace Tiptronic control unit• Switch off ignition• Pull plug off Tiptronic controlunit• Measure resistance between'pin 45' and ground onTiptronic control unit plug.• Pull off sensor plug (existingtransmission wiring)• Measure resistance between'pin 45' and ground onTiptronic control unit plug.3. Troubleshooting only for fault type: 'implausible signal'DisplayOKinfinityohmsGo toStep 5infinityohmsGo toStep 3• Measure resistance on sensorinfinityplug (existing transmission ohmswiring) between 'pins B1' andGo topins: 'B2, B3, B4, B5, B6, B7, Step 4B8'.(Observe warning notes!)Remove ATF pan on thetransmission (first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off ATFtemperature sensor.• Measure resistance betweendisconnected plug (wiringside) 'B1' and ground(transmission housing).infinityohmsGo toStep 5If not OKGo to Step 2Repair wiring harnessto Tiptronic control unit(existing transmissionwiring).--> EndRepair wiring harnessto Tiptronic control unit(existing transmissionwiring).--> EndReplace wiring harnessin the transmission.--> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.--> EndIf fault has not been remedied,then:Go to Step 6See note on replacing controlunits!--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneTROUBLESHOOTING PROCEDURE IMPLAUSIBLE SIGNALWork instruction Display OK If not OKReplace 'ATF temperature1sensor'2 Replace Tiptronic control unitFAULT CODE 0348/P2716If, after replacing the 'ATF temperature sensor', the fault is notremedied, then:--> EndIf, after replacing the 'ATF temperature sensor', the fault is remedied,then:Go to Step 2See note on replacing control units!--> EndSHIFT SOLENOID VALVE C2 (MODULATION PRESSURE) [PRESSURE CONTROL SOLENOID'C ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.DIAGNOSTIC CONDITIONSNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctionsThe fault types 'Short circuit to B+ and Open circuit/short circuit to ground' are set after the followingconditions occur five times:• A short circuit to B+ causes the current measured by the Tiptronic control module to become 'greater than1333 mA' for a duration of 100 msec.• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne'ON' and the current measured by the Tiptronic control module is 'less than 23 mA' for a duration of 100msec.The fault type 'Electrical fault in electric circuit' is set after the following conditions occur twice:• Ignition on, voltage is less than 10.5 V for 500 msec.• The current measured by the Tiptronic control module is 'less than 23 mA' or 'greater than 1333 mA' for aduration of 500 msec.POSSIBLE CAUSES OF FAULTNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Short circuit to B+': A short circuit to B+ causes the shift solenoid valve C2 (modulation pressure) tobe continually activated• 2.) 'Open circuit/short circuit to ground': A short circuit to ground prevents activation of the shift solenoidvalve C2 (modulation pressure)• 2.) 'Open circuit/short circuit to ground': An open circuit prevents activation of the shift solenoid valve C2(modulation pressure)• 3.) 'Electrical fault in electric circuit': Shift solenoid valve C2 (modulation pressure) has no or limitedfunctionAFFECTED PINSTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin MB26• Pin 2 'ground', <strong>from</strong> ground pin MB26• Pin 16 'voltage/current for shift solenoid valve C2 (modulation pressure)', to existing transmission wiringplug 'pin A5'• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 32 'ground for shift solenoid valve C2 (modulation pressure)', to existing transmission wiring plug'pin A6'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shift solenoid valve C2 (modulation pressure)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 24: Wiring Diagram Of Shift Solenoid Valve C2 (Modulation Pressure)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Shift Solenoid valve C2 (modulation pressure)16 - Pin (16)32 - Pin (432)I - Current flowData on shift solenoid valve C2 (modulation pressure)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.0 A• Default internal resistance: 5.3 ± 0.3 ohms. (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!

(Observe warning notes!)2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Short circuit to B+'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instructionCheck for short circuit toB+ with 'Tiptroniccontrol module' plug1 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith 'Tiptronic controlmodule' plug2 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):Check mechanicalfunctionality of shiftsolenoid valve C24(modulation pressure)using Tiptronic controlmodule plug:• Ignition off• Pull plug off Tiptronic control module• Ignition on• Measure voltage between 'pins 16, 32'and ground on Tiptronic control moduleplug.• Ignition off• Measure resistance between 'pins 16, 32'and pins' 4, 5, 15, 30, 31,41, 42' onTiptronic control module plug.• Measure resistance between 'pins 16, 32'and pins' 4, 5, 15, 30, 31,41, 42' onTiptronic control module plug.DisplayOK< 0.3 VGo toStep 2infinityohmsGo toStep 4infinityohmsGo toStep 6• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoid Go tovalve, supply 'approx. 12 V battery Step 8voltage' to 'pin 16' of the Tiptronic controlmodule plug for a short time.• 'Pin 32' must be connected to ground. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.If not OKRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 3Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 5

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck the mechanicalfunctionality of the shift5 solenoid valve C2(modulation pressure)directly at the valve:6 Replace wiring harness in the transmissionRemove ATF pan on the transmission (firstdrain fluid).Remove ATF filter, perform visual inspectionof plug and wiring:7 Replace shift solenoid valve C2 (modulation pressure)8 Replace control module• Pull plug off the shift solenoid valve C2(modulation pressure).• Using a suitable auxiliary cable that is Go tofuse-protected in accordance with the Step 8power consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin A5' and ground to 'pin A6'of the shift solenoid valve for a shorttime. A distinct clicking sound should beheard immediately <strong>from</strong> the shift solenoidvalve.2. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'Shift solenoidvalve stiff.Go to Step 7(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid).Remove ATF filter.--> EndOnly replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacingcontrol modules!--> EndTROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO GROUNDDisplayWork instructionIf not OKOK1Check the 'shift solenoidvalve C2 (modulationpressure)' activation wire andthe ground supply wire for ashort circuit with respect toeach other and an opencircuit:• Ignition off• Pull plug off 'Tiptronic controlmodule'• Measure resistance between 'pin 16'and 'pin 32' on Tiptronic controlmodule plug.5.3 ± 0.3ohmsGo toStep 4If the measuredresistance is lessthan the defaultvalue:Go to Step 2If the measuredresistance isinfinity ohms:Go to Step 10Repair wiring

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne234567Check the shift solenoidvalve C2 (modulationpressure) activation wire andthe ground supply wire for ashort circuit with respect toeach other:Check the shift solenoidvalve C2 (modulationpressure) activation wire andthe ground supply wire in thetransmission for a shortcircuit with respect to eachother:Check the shift solenoidvalve C2 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check the shift solenoidvalve C2 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check for short circuit toground in the shift solenoidvalve C2 (modulationpressure) activation wire:Check for short circuit toground in the shift solenoidvalve C2 (modulationpressure) activation wire:• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 16'and 'pin 32' on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve C2 (modulation pressure).• Measure resistance between 'pinA6' and 'pin A5' on thedisconnected plug.• Measure resistance between 'pin 16'and pins '6, 17, 18, 43, 44' onTiptronic control module plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 16'and pins '6, 17, 18, 43, 44' onTiptronic control module plug.• Measure resistance between 'pin 16'and ground on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 16'and ground on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinfinityohmsGo toStep 3infinityohmsGo toStep 12infinityohmsGo toStep 6infinityohmsGo toStep 15infinityohmsGo toStep 13infinityohmsGo toStep 8harness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Go to Step 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 7Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

Check mechanicalfunctionality of shiftsolenoid valve C2• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to Go to Shift solenoid2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne89Check for short circuit toground in the shift solenoidvalve C2 (modulationpressure) activation wire inthe transmission:Check for short circuit toground in the coil in the shiftsolenoid valve C2(modulation pressure):Check for open circuit in theshift solenoid valve C210 (modulation pressure)activation wire and groundsupply wire:Check for open circuit in theactivation wire and groundsupply wire of the shift11solenoid valve C2(modulation pressure) in thetransmission:Check shift solenoid valveC2 (modulation pressure)12coil for open circuit andshort circuit:inspection of plug and wiring:• Pull plug off the shift solenoidvalve C2 (modulation pressure).• Measure resistance between 'pinA5' on disconnected plug (wiringside) and ground (transmissionhousing).• Measure resistance between 'pinA5' on shift solenoid valve C2(modulation pressure) and ground(transmission housing).• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance in the wiresbetween 'pin 32,16' of Tiptroniccontrol module plug and 'pin A6,A5' of shift solenoid valve C2(modulation pressure) plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Connect solenoid valve plug(existing transmission wiring)• Pull plug off the shift solenoidvalve C2 (modulation pressure).• Measure resistance between 'pin32, 16' of Tiptronic control moduleplug and 'pin A6, A5' of shiftsolenoid valve C2 (modulationpressure) plug.• Measure resistance between 'pinA5' and 'pin A6' on shift solenoidvalve C2 (modulation pressure).infinityohmsGo toStep 9infinityohmsGo toStep 14< 2 ohmsGo toStep 11< 2 ohmsGo toStep 125.3 ± 0.3ohms (at20°C)Go toStep 14Go to Step 15Short circuit toground in coil.Go to Step 16Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Open circuit orshort circuit incoil.Go to Step 16

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne(modulation pressure) usingTiptronic control moduleplug:13Check the mechanicalfunctionality of the shift14 solenoid valve C2(modulation pressure)directly at the valve:15 Replace wiring harness in the transmission'pin 16' of the Tiptronic controlmodule plug for a short time.• 'Pin 32' must be connected toground. A distinct clicking soundshould be heard immediately <strong>from</strong>the shift solenoid valve.• Using a suitable auxiliary cable thatis fuse-protected in accordancewith the power consumption of theshift solenoid valve, supply'approx. 12 V battery voltage' to'pin A5' and ground to 'pin A6' ofthe shift solenoid valve for a shorttime.• A distinct clicking sound should beheard immediately <strong>from</strong> the shiftsolenoid valve.16 Replace shift solenoid valve C2 (modulation pressure)17 Replace control module3. Troubleshooting only for fault type: 'Electrical fault in electric circuit'Step 17Go toStep 17valve stiff.Go to Step 16Shift solenoidvalve stiff.Go to Step 16(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid).Remove ATF filter.--> EndOnly replace if the wiring inthe transmission was checkedfor chafing damage andfound to be OK.--> EndSee note on replacing controlmodules!--> EndNOTE:If the fault '0364 Power supply, terminal 15' is also stored in addition tothis fault, look for the cause of the fault on the power supply side of the'Tiptronic control module'!TROUBLESHOOTING PROCEDURE ELECTRICAL FAULT IN ELECTRIC CIRCUITDisplayWork instructionIf not OKOKCheck battery • Engine speed > 2,000 11.4 toCharge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory and

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennevoltage/current andcharge voltage/current on threephase1generator:Check terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:Check power supply4 lines for short circuitto ground:Check ground supply5 lines for short circuitto B+:Check voltage6 supply lines for opencircuit:Check ground supply7lines for open circuit:rpm.• Measure chargevoltage/ current ofgenerator.• Ignition off• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.• Ignition off• Measure resistance onTiptronic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.• Measure resistancebetween 'pin 1,2 andbody ground' onTiptronic controlmodule plug.14.5 VGo toStep 210.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4< 0.3 VGo toStep 5< 0.3 VGo toStep 6< 0.5ohmsGo toStep 7< 0.5ohmsGo toStep 8then read out the fault memory again whileobserving the diagnostic conditions. If nofaults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '51' in fuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5Short circuit to ground in Tiptronic controlmodule plug leads' pin 27, 28 and fuse 51'in fuse carrier at right of dashboard. Repairwire and replace faulty fuse.--> EndShort circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'.Repair wire(s) and replace faulty fuse.--> EndOpen circuit in wires to fuse carrier atright of dashboard.Repair wire(s). Check fuse.--> EndOpen circuit in Tiptronic control moduleand body ground wires.Repair wire(s).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck terminal 158power supply at fuse:9FAULT CODE 0349/P2734• Measure voltage 10.5 Vbetween fuse plug '51 to 14.5and body ground' in Vfuse carrier at right of Go todashboard. Step 9Continue troubleshooting in accordance with the'Diagnosis/troubleshooting' tables:1. Troubleshooting only for fault type: 'Shortcircuit to B+"2. Troubleshooting only for fault type: 'Opencircuit/short circuit to ground'Short circuit/contact resistance/corroded orloose connections near or in fuse carrier.Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndFollow the work instructions in the tables and lookfor the fault on the page that describes the activationof the shift solenoid valve C2 (modulationpressure).--> EndSHIFT SOLENOID VALVE B1 (MODULATION PRESSURE) [PRESSURE CONTROL SOLENOID'F' ELECTRICAL]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to checkthe transmission status and the actual values of the shift solenoid valves andsensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctionsThe fault types 'Short circuit to B+ and Open circuit/short circuit to ground' are set after the followingconditions occur five times:• A short circuit to B+ causes the current measured by the Tiptronic control module to become 'greater than

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne1333 mA' for a duration of 100 msec.• An open circuit/short circuit to ground causes the power switch (in Tiptronic control module) to come'ON' and the current measured by the Tiptronic control module is 'less than 23 mA' for a duration of 100msec. No switching <strong>from</strong> 'gear 3' to 'gear 4' and vice versa. The torque to be transferred is limited to '50Nm (37 ftlb.)'.The fault type 'Electrical fault in electric circuit' is set after the following conditions occur twice:• Ignition on, voltage is less than 10.5 V for 500 msec.• The current measured by the Tiptronic control module is 'less than 23 mA' or 'greater than 1333 mA' for aduration of 500 msec.Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Short circuit to B+': A short circuit to B+ causes the shift solenoid valve B1 (modulation pressure) tobe continually activated• 2.) 'Open circuit/short circuit to ground': A short circuit to ground prevents activation of the shift solenoidvalve B1 (modulation pressure)• 2.) 'Open circuit/short circuit to ground': An open circuit prevents activation of the shift solenoid valve B1(modulation pressure)• 3.) 'Electrical fault in electric circuit': Shift solenoid valve B1 (modulation pressure) has no or limitedfunctionAffected pinsTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin MB26• Pin 2 'ground', <strong>from</strong> ground pin MB26• Pin 4 'voltage/current for shift solenoid valve B1 (modulation pressure)', to existing transmission wiringplug 'pin A9'• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 44 'ground for shift solenoid valve B1 (modulation pressure)', to existing transmission wiring plug'pin A10'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shift solenoid valve B1 (modulation pressure)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 25: Wiring Diagram Of Shift Solenoid Valve B1 (Modulation Pressure)Courtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Shift Solenoid valve B1 (modulation pressure)4 - Pin (4)44 - Pin (44)I - Current flowData on shift solenoid valve B1 (modulation pressure)• Max. voltage drop on Tiptronic control module: 1.5 V• Operating voltage (during switching): 10.5 V to 16.5 V• Max. voltage drop in wiring: 0.08 V• Max. power consumption: 1.0 A• Default internal resistance: 5.3 ± 0.3 ohms (at 20°C)NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!

(Observe warning notes!)2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Short circuit to B+'TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instructionCheck for short circuit toB+ with 'Tiptroniccontrol module' plug1 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith 'Tiptronic controlmodule' plug2 disconnected andsolenoid valve plugconnected (existingtransmission wiring):Check for short circuitwith both 'Tiptroniccontrol module' plug and3solenoid valve plugdisconnected (existingtransmission wiring):Check mechanicalfunctionality of shiftsolenoid valve B14(modulation pressure)using Tiptronic controlmodule plug:• Ignition off• Pull plug off Tiptronic control module• Ignition on• Measure voltage between 'pins 4, 44' andground on Tiptronic control module plug.• Ignition off• Measure resistance between 'pins 4, 44'and pins '5, 15, 16, 30, 31, 41,42' onTiptronic control module plug.• Measure resistance between 'pins 4, 44'and pins '5, 15, 16,30,31, 41,42' onTiptronic control module plug.• Tiptronic control module plugdisconnected and solenoid valve plug(existing transmission wiring) connected• Using a suitable auxiliary cable that isfuse-protected in accordance with thepower consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin 4' of the Tiptronic controlmodule plug for a short time.• 'Pin 44' must be connected to ground. Adistinct clicking sound should be heardimmediately <strong>from</strong> the shift solenoidvalve.DisplayOK< 0.3 VGo toStep 2infinityohmsGo toStep 4infinityohmsGo toStep 6Go toStep 8If not OKRepair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 3Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 5

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck the mechanicalfunctionality of the shift5 solenoid valve B1(modulation pressure)directly at the valve:6 Replace wiring harness in the transmissionRemove ATF pan on the transmission (firstdrain fluid).Remove ATF filter, perform visual inspectionof plug and wiring:7 Replace shift solenoid valve B1 (modulation pressure)8 Replace control module• Pull plug off the shift solenoid valve B1(modulation pressure).• Using a suitable auxiliary cable that is Go tofuse-protected in accordance with the Step 8power consumption of the shift solenoidvalve, supply 'approx. 12 V batteryvoltage' to 'pin A9' and ground to 'pinA10' of the shift solenoid valve for a shorttime. A distinct clicking sound should beheard immediately <strong>from</strong> the shift solenoidvalve.2. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'Shift solenoidvalve stiff.Go to Step 7(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid).Remove ATF filter.--> EndOnly replace if the wiring inthe transmission waschecked for chafing damageand found to be OK.--> EndSee note on replacingcontrol modules!--> EndTROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO GROUNDDisplayWork instructionIf not OKOK1Check the 'shift solenoidvalve B1 (modulationpressure)' activation wireand the ground supply wirefor a short circuit withrespect to each other and anopen circuit:• Ignition off• Pull plug off 'Tiptronic controlmodule'• Measure resistance between 'pin 4'and 'pin 44' on Tiptronic controlmodule plug.5.3 ± 0.3ohmsGo toStep 4If the measuredresistance is lessthan the defaultvalue:Go to Step 2If the measuredresistance isinfinity ohms:Go to Step 10Repair wiring

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne234567Check the shift solenoidvalve B1 (modulationpressure) activation wire andthe ground supply wire for ashort circuit with respect toeach other:Check the shift solenoidvalve B1 (modulationpressure) activation wire andthe ground supply wire inthe transmission for a shortcircuit with respect to eachother:Check the shift solenoidvalve B1 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check the shift solenoidvalve B1 (modulationpressure) activation wire andthe ground supply wires ofthe shift solenoid valves fora short circuit with respect toeach other:Check for short circuit toground in the shift solenoidvalve B1 (modulationpressure) activation wire:Check for short circuit toground in the shift solenoidvalve B1 (modulationpressure) activation wire:• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 4'and 'pin 44' on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Pull plug off the shift solenoidvalve B1 (modulation pressure).• Measure resistance between 'pinA10' and 'pin A9' on thedisconnected plug.• Measure resistance between 'pin 4'and pins '6, 17, 18, 32, 43' onTiptronic control module plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 4'and pins '6, 17, 18, 32, 43' onTiptronic control module plug.• Measure resistance between 'pin 4'and ground on Tiptronic controlmodule plug.• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance between 'pin 4'and ground on Tiptronic controlmodule plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinfinityohmsGo toStep 3infinityohmsGo toStep 12infinityohmsGo toStep 6infinityohmsGo toStep 15infinityohmsGo toStep 13infinityohmsGo toStep 8harness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Go to Step 5Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 7Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> End

Check mechanicalfunctionality of shiftsolenoid valve B1• Using a suitable auxiliary cable thatis fuse-protected in accordance withthe power consumption of the shiftsolenoid valve, supply 'approx. 12V battery voltage' to 'pin 4' of the Go to Shift solenoid2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne89Check for short circuit toground in the shift solenoidvalve B1 (modulationpressure) activation wire inthe transmission:Check for short circuit toground in the coil in the shiftsolenoid valve B1(modulation pressure):Check for open circuit in theshift solenoid valve B110 (modulation pressure)activation wire and groundsupply wire:Check for open circuit in theactivation wire and groundsupply wire of the shift11solenoid valve B1(modulation pressure) in thetransmission:Check shift solenoid valveB1 (modulation pressure)12coil for open circuit andshort circuit:inspection of plug and wiring:• Pull plug off the shift solenoidvalve B1 (modulation pressure).• Measure resistance between 'pinA9' on disconnected plug (wiringside) and ground (transmissionhousing).• Measure resistance between 'pinA9' on shift solenoid valve B1(modulation pressure) and ground(transmission housing).• Pull off solenoid valve plug(existing transmission wiring)• Measure resistance in the wiresbetween 'pin 44, 4' of Tiptroniccontrol module plug and 'pin A10,A9' of shift solenoid valve B1(modulation pressure) plug.(Observe warning notes!)Remove ATF pan on the transmission(first drain fluid).Remove ATF filter, perform visualinspection of plug and wiring:• Connect solenoid valve plug(existing transmission wiring)• Pull plug off the shift solenoidvalve B1 (modulation pressure).• Measure resistance between 'pin 44,4' of Tiptronic control module plugand 'pin A10, A9' of shift solenoidvalve B1 (modulation pressure)plug.• Measure resistance between 'pinA9' and 'pin A10' on shift solenoidvalve B1 (modulation pressure).infinityohmsGo toStep 9infinityohmsGo toStep 14< 2 ohmsGo toStep 11< 2 ohmsGo toStep 125.3 ± 0.3ohms (at20°C)Go toStep 14Go to Step 15Short circuit toground in coil.Go to Step 16Repair wiringharness toTiptronic controlmodule (existingtransmissionwiring).--> EndGo to Step 15Open circuit orshort circuit incoil.Go to Step 16

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne(modulation pressure) usingTiptronic control moduleplug:13Check the mechanicalfunctionality of the shift14 solenoid valve B1(modulation pressure)directly at the valve:15 Replace wiring harness in the transmissionTiptronic control module plug for ashort time.• 'Pin 44' must be connected toground. A distinct clicking soundshould be heard immediately <strong>from</strong>the shift solenoid valve.• Using a suitable auxiliary cable thatis fuse-protected in accordance withthe power consumption of the shiftsolenoid valve, supply 'approx. 12V battery voltage' to 'pin A9' andground to 'pin A10' of the shiftsolenoid valve for a short time.• A distinct clicking sound should beheard immediately <strong>from</strong> the shiftsolenoid valve.16 Replace shift solenoid valve B1 (modulation pressure)17 Replace control module3. Troubleshooting only for fault type: 'Electrical fault in electric circuit'Step 17Go toStep 17valve stiff.Go to Step 16Shift solenoidvalve stiff.Go to Step 16(Observe warning notes!)Remove ATF pan on thetransmission (first drainfluid).Remove ATF filter.--> EndOnly replace if the wiring inthe transmission was checkedfor chafing damage andfound to be OK.--> EndSee note on replacing controlmodules!--> EndNOTE:If the fault '0364 Power supply, terminal 15' is also stored in addition to thisfault, look for the cause of the fault on the power supply side of the 'Tiptroniccontrol module'!TROUBLESHOOTING PROCEDURE ELECTRICAL FAULT IN ELECTRIC CIRCUITDisplayWork instructionIf not OKOKCheck batteryvoltage/current and• Engine speed > 2,000rpm.11.4 to14.5 VCharge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory andthen read out the fault memory again while

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennecharge voltage/current on threephase1 generator:Check terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:Check power supply4 lines for short circuitto ground:Check ground supply5 lines for short circuitto B+:Check voltage6 supply lines for opencircuit:Check ground supply7lines for open circuit:• Measure chargevoltage/ current ofgenerator.• Ignition off• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.• Ignition off• Measure resistance onTiptronic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.• Measure resistancebetween 'pin 1,2 andbody ground' onTiptronic controlmodule plug.Go toStep 210.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4< 0.3 VGo toStep 5< 0.3 VGo toStep 6< 0.5ohmsGo toStep 7< 0.5ohmsGo toStep 8observing the diagnostic conditions. If nofaults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '51' in fuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5Short circuit to ground in Tiptronic controlmodule plug leads' pin 27, 28 and fuse 51'in fuse carrier at right of dashboard. Repairwire and replace faulty fuse.--> EndShort circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'.Repair wire(s) and replace faulty fuse.--> EndOpen circuit in wires to fuse carrier at rightof dashboard.Repair wire(s). Check fuse.--> EndOpen circuit in Tiptronic control moduleand body ground wires.Repair wire(s).--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck terminal 158power supply at fuse:9FAULT CODE 0364TERMINAL 15 POWER SUPPLY• Measure voltage 10.5 Vbetween fuse plug '51 to 14.5and body ground' in Vfuse carrier at right of Go todashboard. Step 9Continue troubleshooting in accordance with the'Diagnosis/troubleshooting' tables:1. Troubleshooting only for fault type: 'Shortcircuit to B+'2. Troubleshooting only for fault type: 'Opencircuit/short circuit to ground'Short circuit/contact resistance/corroded orloose connections near or in fuse carrier.Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndFollow the work instructions in the tables and lookfor the fault on the page that describes the activationof the shift solenoid valve B1 (modulation pressure).--> EndNOTE:NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.First check the fuse. This fault can also indicate a faulty fuse! Fuse carrier atright of dashboard, fuse 51.System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditions• Ignition on, voltage < 9 V for 1 second• Engine running and engine speed '> 400 rpm' for 2 seconds• The fault is stored in memory after it occurs 20 timesSee description of fault effect in main chapter Fault overview!Possible causes of fault• 'Lower limit value not reached', fuse faulty• 'Lower limit value not reached', generator faulty• 'Lower limit value not reached', short circuit to B+ in ground leads

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• 'Lower limit value not reached', short circuit to ground in voltage wires• 'Lower limit value not reached', open circuit in fuse box or in voltage or ground leads• 'Lower limit value not reached', Tiptronic control moduleAffected pinsTiptronic control module plug:• Pin 1 'ground', <strong>from</strong> ground pin MB26• Pin 2 'ground', <strong>from</strong> ground pin MB26• Pin 27 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'• Pin 28 'terminal 15', <strong>from</strong> fuse carrier at right of dashboard 'fuse 51'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of power supply to terminal 15 of 'Tiptronic control module'Fig. 26: Wiring Diagram Of Power Supply To Terminal 15 Of Tiptronic Control ModuleCourtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control module2 - Ignition switchB+ - Terminal 30 power supply (pin 3)Fl - Terminal 30 fuse, fuse carrier at right of dashboard 'fuse 29'F2 - Terminal 30 fuse for ignition switchF3 - Terminal 15 fuse, fuse carrier at right of dashboard 'fuse 51'IG - Terminal 15 power supply (pins 27 and 28)GND-Ground supply (pins 1 and 2)VGND-Body ground

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.Before carrying out the work instruction, please check fuse '51', terminal 15 power supply for theTiptronic control module, in the fuse carrier at the right of the dashboard and replace it if necessary.After replacing the fuse, determine and remedy the cause of the fault in accordance with the workinstruction below!DIAGNOSIS/TROUBLESHOOTING PROCEDUREDisplayWork instructionOKCheck batteryvoltage/current and1 charge voltage/current on threephasegenerator:Check terminal 15power supply to2Tiptronic controlmodule:Check ground supply3 to Tiptronic controlmodule:• Engine speed > 2,000rpm.• Measure chargevoltage/ current ofgenerator.• Ignition off• Pull plug offTiptronic controlmodule• Ignition on• Measure voltagebetween 'pins 27, 28'and ground onTiptronic controlmodule plug.• Measure voltagebetween 'pin 1, 2 andbattery positiveconnection'.11.4 to14.5 VGo toStep 210.5 to14.5 VGo toStep 310.5 to14.5 VGo toStep 4If not OKCharge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory andthen read out the fault memory again whileobserving the diagnostic conditions. If nofaults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '51' infuse carrier at right ofdashboard (resistance measurement).Check power supply lines for short circuitto ground:Go to Step 4Check ground lead for short circuit to B+:Go to Step 5

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Ignition off• Measure voltagebetween 'pin 27, 28and battery positiveconnection' onTiptronic controlmodule plug.Check power supply4 lines for short circuitto ground:< 0.3 VGo toStep 5Short circuit to ground in Tiptronic controlmodule plug leads 'pin 27, 28 and fuse 51'infuse carrier at right of dashboard. Repairwire and replace faulty fuse.--> EndCheck ground supply5 lines for short circuitto B+:• Ignition on• Measure voltagebetween 'pin 1, 2 andbody ground'.< 0.3 VGo toStep 6Short circuit to B+ in Tiptronic controlmodule plug leads and 'body ground point26'.Repair wire(s) and replace faulty fuse.--> EndCheck voltage6 supply lines for opencircuit:• Ignition off• Measure resistance onTiptronic controlmodule plug between'pin 27, 28 and fuse51' in fuse carrier atright of dashboard.< 0.5ohmsGo toStep 7Open circuit in wires to fuse carrier at rightof dashboard.Repair wire(s). Check fuse.--> EndCheck ground supply7lines for open circuit:Check terminal 158power supply at fuse:9 Replace Tiptronic control moduleFAULT CODE 0453• Measure resistancebetween 'pin 1,2 andbody ground' onTiptronic controlmodule plug.• Measure voltagebetween fuse plug '51and body ground' infuse carrier at right ofdashboard.< 0.5ohmsGo toStep 810.5 Vto 14.5VGo toStep 9FUNCTION RESTRICTED DUE TO EXCESS TEMPERATUREOpen circuit in Tiptronic control moduleand body ground wires.Repair wire(s).--> EndShort circuit/contact resistance/corroded orloose connections near or in fuse carrier.Repair if possible, otherwise replace fusecarrier at right of dashboard.--> EndSee note on replacing control modules!--> EndThis fault is set if the ATF fluid in the torque converter is greater than or equal to 150°C.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDiagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.• Ignition on• Internal Tiptronic control module function test• Engine running, in gear and set off with the vehicle• No electrical faults (ATF temperature sensor) stored in fault memoryPossible causes of fault• 'No display' in instrument cluster (coolant shutoff valve faulty/ does not function)Affected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Check ATF fluid level Go to Step 2Correct ATF fluid level.--> End2 Check coolant shutoff valve Go to Step 3Replace coolant shutoff valve.--> End3 Check ATF cooler for blockage Go to Step 4 Replace ATF cooler. --> End4 Check transmission for mechanical faults Go to Step 5Replace Tiptronic transmission.--> End5 Replace control module --> EndFAULT CODE 0529/P0725ENGINE SPEED [ENGINE SPEED INPUT CIRCUIT]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Diagnostic conditions• Ignition on• Internal Tiptronic control module function test

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Engine runningPossible cause of fault• Signal <strong>from</strong> DME control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> DME control module does not appear on CAN drive (no signal/communication)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'Diagnosis/troubleshooting G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out DME control module1fault memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .FAULT CODE 0641This fault is set when the ATF fluid in the torque converter reaches or exceeds 170°C. The Tiptronic controlunit sends a signal to limit the torque to 150 Nm.ATF TEMPERATUREFor further troubleshooting, please follow the diagnosisinstructions for the DME control module in FUEL SYSTEM,ELECTRONIC INJECTION .--> End--> EndNOTE:The ignition must be switched off and then switched on again in order todisplay a fault indication in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditions

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.• Ignition on• Internal Tiptronic control unit function test• Engine running, gear engaged and drive the vehicle• No electrical fault (ATF temperature sensor) stored in fault memory• Torque converter lockup clutch 'OFF'• Output shaft speed < 800 rpmPossible causes of fault• 'Above upper limit', fault displayed in instrument cluster. Coolant shut-off valve faulty or does not switch.Cooler blocked, torque converter or transmission mechanical fault. Tiptronic control unit faulty.Affected pinsTiptronic control unit plug:• Pin 8 'ATF temperature sensor ground', to existing transmission wiring plug 'pin B2'• Pin 45 'ATF temperature sensor voltage/current', to existing transmission wiring plug 'pin B1'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of ATF temperature sensorFig. 27: Wiring Diagram Of ATF Temperature SensorCourtesy of PORSCHE OF NORTH AMERICA, INC.1 - Tiptronic control unit2 - ATF temperature sensor8 - Pin (8)45 - Pin (45)

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneI - ATF temperature sensor current flowData on ATF temperature sensor• Sensor type: Thermistor• Current input at 145°C: 2 mA• Internal resistance at -30°C: 44 ± 6.6 kohms• Internal resistance at 10°C: 6,445 ± 0.645 kohms• Internal resistance at 110°C: 247 ± 16 ohms• Internal resistance at 145°C: 111 ± 6 ohmsNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control unit plug connection and the 'pins'on the 'existing transmission wiring' plug connection are neither damaged norcorroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control unit. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlunit' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Check fluid level Go to Step 2Top-up ATF fluid.--> End2 Check coolant shut-off valve Go to Step 3Replace coolant shut-off valve.--> End3 Check ATF cooler for blockage Go to Step 4Replace ATF cooler.--> End4 Check transmission for mechanical fault Go to Step 5Replace Tiptronic transmission.--> End5 Replace ATF temperature sensor --> End Go to Step 6

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne6 Replace Tiptronic control unit --> EndFAULT CODE 0777/P2122ACCELERATOR MODULE [THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUITLOW INPUT]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Diagnostic conditions• Ignition on• Internal Tiptronic control module function test• Accelerator actuated/engine runningPossible cause of fault• Signal <strong>from</strong> DME control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> DME control module does not appear on CAN drive (no signal/communication)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out DME control module1fault memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .For further troubleshooting, please follow the diagnosisinstructions for the DME control module in FUEL SYSTEM,ELECTRONIC INJECTION .--> End--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFAULT CODE 0789REVERSING LIGHT SWITCHNOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the 9588 Porsche System Tester 11 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsThe following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• No fault on multi-function switchThe fault type 'open circuit/short circuit to ground' is stored when the gear 'R' is engaged and the signal ofthe 'reversing light switch' is 'OFF' for longer than one second.The fault type 'short circuit to B+' is stored when the gear 'D' is engaged and the signal of the 'reversinglight switch' is 'ON' for longer than one second.Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the 9588 Porsche System Tester II can be used to readout the fault type in the 'extended fault memory'.• 1.) 'Open circuit/short circuit to ground'• 2.) 'Short circuit to B+'Affected pinsTiptronic control module plug:• Pin 21 'reversing light input', <strong>from</strong> vehicle electrical system control unit 'pin A20' (see PLUG 'A', 26-PIN )DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:Visual inspection: In the next troubleshooting section, please check first that

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennethe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control module. Afterthe test drive, read out the fault memory with the 9588 Porsche System Tester IIagain. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.1. Troubleshooting only for fault type: 'Open circuit/short circuit to ground'NOTE:The multi-function switch is protected by fuse '52' in the fuse carrier at theright of the dashboard. This fuse should be checked for continuity andreplaced if not OK.TROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO GROUNDWork instruction Display OK If not OKReplace fuse• Check all relevant plugor repair1 Visual inspection:connections, fuses and wiring Go to Step 2 wiringfor damage.harness.--> EndMeasurement '2a'• Ignition off• Pull off plug on multifunctionswitchCheck for short circuit to ground of•voltage supply line to multifunctionswitch and of signal line to • Measure voltage between 'pinIgnition on2vehicle electrical system control C8' on multi-function switchunit and Tiptronic control unit: plug and terminal 30.Measurement '2b'• Measure voltage between 'pinC10' on multi-function switchplug and terminal 30.Measurement '3a'• Measure resistance between'pin C8' on multi-functionswitch plug and fuse '52' in< 0.3 Vgo tomeasurement'2b'approx. 12 VGo to Step 3< 5 ohmsgo tomeasurement'3b'Repairwiringharness--> EndRepairwiringharness--> EndRepairwiringharness--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck for open circuit of voltagesupply and ground supply lines tomulti-function switch and of signal3line to vehicle electrical systemcontrol unit and Tiptronic controlunit:fuse carrier at right ofdashboard.Measurement '3b'• Pull plugs off vehicleelectrical system control unitand Tiptronic control unit• Measure resistance between'pin C10' on multi-functionswitch plug and 'pin A20' onvehicle electrical systemcontrol unit plug.Measurement '3c'• Measure resistance between'pin 21' on Tiptronic controlunit plug and 'pin A20' onvehicle electrical systemcontrol unit plug.Measurement '3d'2. Troubleshooting only for fault type: 'Short circuit to B+'< 5 ohmsgo tomeasurement'3c'< 5 ohmsgo tomeasurement'3d'< 5 ohms• Measure resistance betweenGo to Step 4'pins C3, C4' on multi-functionswitch plug and groundRepairwiringharness--> EndRepairwiringharness--> EndRepairwiringharness toground pin'MB 26'--> End•4 Check multi-function switch: Carry out check in accordance Go to Step 6with fault code 0293 (P0705).Go to Step 55 Replace multi-function switch --> End6 Replace Tiptronic control module --> EndTROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO B+Work instruction1 Visual inspection:• Check all relevant plugconnections and wiring fordamage.DisplayOKGo toStep 2If not OKRepairwiringharness.--> EndCheck for short circuit to B+ of signal2 line to vehicle electrical system controlunit and Tiptronic control unit:• Ignition off• Pull off plug on multifunctionswitch• Switch on ignition• Measure voltage between 'pin< 0.3 VGo toStep 3Repairwiringharness--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneC10' on multi-function switchplug and ground.•3 Check multi-function switch Carry out check in accordancewith fault code 0293 (P0705).Go toStep 54 Replace multi-function switch --> End5 Replace Tiptronic control module --> EndGo to Step4FAULT CODE 1045SELECTOR LEVER SWITCHNOTE:The ignition must be switched off and then switched on again in order todisplay a fault indication in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditions• Ignition on• Internal Tiptronic control unit function test• Selector lever switch 'D'• Manual gearshift activated during drivingPossible causes of fault• 'implausible signal'Affected pinsTiptronic control unit plug:• Pin 11 'Tiptronic UP', <strong>from</strong> selector lever switch 'pin B4'• Pin 37 'Tiptronic DOWN', <strong>from</strong> selector lever switch 'pin B5'• Pin 48 'Tiptronic INFO', to selector lever switch 'pin B3'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of selector lever switch

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 28: Wiring Diagram Of Selector Lever SwitchCourtesy of PORSCHE OF NORTH AMERICA, INC.NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control unit plug connection and the 'pins'on the 'existing transmission wiring' plug connection are neither damaged norcorroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control unit. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlunit' should be detected and remedied.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKMeasurement 'la'Check for short circuit to B+ in thewiring between Tiptronic controlunit and selector lever switch and1in the ground line between'selector lever switch' and groundpin 'MB22':Check for short circuit to groundin the wiring between Tiptronic2control unit and selector leverswitch:Check for short circuit in the3 wiring between Tiptronic controlunit and selector lever switch:• Ignition off• Pull plug off the Tiptronic < 0.3 Vcontrol unitgo to• Ignition onmeasurement'1b'• Measure voltage between'pins 11, 37, 48' and groundon Tiptronic control unitplug.Measurement '1b'• Ignition off• Pull off plug <strong>from</strong> 'selectorlever switch'• Ignition on• Measure voltage at selectorlever switch plug between'pin B6' and ground.< 0.3 VGo to Step 2• Measure resistancebetween 'pin 11, 37, 48' and infinity ohmsground on Tiptronic control Go to Step 3unit plug.• Measure resistance atselector lever switch plugbetween 'pins B6, B5, B4,B3'.infinity ohmsGo to Step 4Repair wiringharness toTiptronic controlunit.--> EndRepair groundline(s).--> EndRepair wiringharness toTiptronic controlunit.--> EndRepair wiringharness toTiptronic controlunit.--> EndCheck for open circuit in the4 wiring between Tiptronic controlunit and selector lever switch:• Measure resistancebetween 'pins 11, 37, 48' onTiptronic control unit plug < 5 ohmsand 'pins B4, B5, B3' on Go to Step 5selector lever switch plug.• Measure resistance atRepair wiringharness toTiptronic controlunit or ground pinMB22.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneselector lever switch plug--> Endbetween 'pin B6' andground pin 'MB22'.5 Replace selector lever switch Go to Step 6 --> End6 Replace Tiptronic control unit --> EndFAULT CODE 1166/P2637ENGINE TORQUE SIGNAL [TORQUE MANAGEMENT FEEDBACK SIGNAL "A"]Diagnostic conditions• Ignition on• Internal Tiptronic control module function test• Engine runningPossible cause of fault• Signal <strong>from</strong> DME control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> DME control module does not appear on CAN drive (no signal/communication)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out DME control module1fault memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .For further troubleshooting, please follow the diagnosisinstructions for the DME control module in FUEL SYSTEM,ELECTRONIC INJECTION .--> End--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFAULT CODE 1192/P0811TORQUE CONVERTER LOCKUP CLUTCH [EXCESSIVE CLUTCH SLIPPAGE]Friction and windage losses (slippage) in the torque converter lockup clutch are monitored. Slippage iscalculated using the engine speed and engine torque CAN signals and the turbine speed of the torque converterlockup clutch.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 6.5 V• Ignition on• Internal Tiptronic control module function test• Temperature of ATF fluid > 20°C• Selector lever in position 'D'• No faults (short circuit to ground) stored for shift solenoid valve UK (modulation pressure)• No faults stored for input shaft (turbine) speed sensor• No implausible engine speed CAN signal• No CAN faults• No DME faults• Slippage: engine speed - input shaft (turbine) > 100 rpm• Engine speed < 400 rpmPossible causes of fault• 'Mechanical fault', torque converter lockup clutch does not functionAffected pinsTiptronic control module plug:• Pin '-'

'Rocking free' test procedure:2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace torque converter --> EndFAULT CODE 1236SHIFTLOCK SOLENOIDSkin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the 9588 Porsche System Tester II to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditions• Ignition on or engine running• Internal Tiptronic control module function testChecking shiftlock function:Shiftlock prevents the selector lever shifting out of the positions 'P' and 'N' when the foot brake is not actuated.Shiftlock is enabled when switching on the ignition.Test procedure:• Ignition switched on• Foot brake not actuated• Try to move the selector lever <strong>from</strong> position 'P'• It must not be possible to move the selector lever• Actuate foot brake• The selector lever must release

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Ignition switched on• Foot brake not actuated• Move selector lever <strong>from</strong> 'R - N - D' and back within '2 seconds'• The selector lever must not lock• Foot brake not actuated• Leave selector lever for approx. '3 seconds' in position 'N'• The selector lever must lock in position 'N'Possible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the 9588 Porsche System Tester II can be used to readout the fault type in the 'extended fault memory'.• 1.) 'Open circuit/short circuit to B+': In the event of short circuit to B+, shiftlock solenoid permanentlyactivated• 1.) 'Open circuit/short circuit to B+': In the event of open circuit, shiftlock solenoid not activated• 2.) 'Short circuit to ground': In the event of short circuit to ground, shiftlock solenoid not activatedAffected pinsTiptronic control module plug:• Pin 29 'shiftlock solenoid', to selector lever switch 'pin A5'• Pin 49 'stop light switch'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of shiftlock solenoid1 - Tiptronic control module2 - Shiftlock solenoid29 - Pin (29)I - Current flowData on Shiftlock solenoid

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 29: Wiring Diagram Of Shiftlock SolenoidCourtesy of PORSCHE OF NORTH AMERICA, INC.• Operating voltage (max.): up to 16.5 V• Current input (max.): 1.2 A (at 16.5 V)• Default internal resistance (at 20°C): 21.2 ± 0.7 ohms• Default internal resistance (at -40°C): 15.8 ohmsNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control module. Afterthe test drive, read out the fault memory with the 9588 Porsche System Tester IIagain. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.1. Troubleshooting only for fault type: 'Open circuit/short circuit to B+'NOTE:The P/N lock solenoid is protected by fuse '52' in the fuse carrier at theright of the dashboard. This fuse should be checked for continuity andreplaced if not OK.TROUBLESHOOTING PROCEDURE OPEN CIRCUIT/SHORT CIRCUIT TO B+Work instruction Display OK If not OKCheck for short circuit to B+ inMeasurement '1a'• Ignition off• Pull plug off the Tiptroniccontrol module• Ignition on• Measure voltage between'pin 29' and ground onRepair wiring< 0.3 V harness togo to measurement Tiptronic'1b'control unit.--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne123the control line betweenTiptronic control unit and'shiftlock solenoid' and in theground lines for 'shiftlocksolenoid' and 'P/N locksolenoid':Check for open circuit with both'Tiptronic control unit' plug and'shiftlock solenoid' and 'P/N locksolenoid' plug disconnected:Check for open circuit on'shiftlock solenoid' and 'P/N locksolenoid':Tiptronic control unit plug.Measurement '1b'• Ignition off• Remove plugs <strong>from</strong> 'P/Nlock solenoid' and 'shiftlocksolenoid'< 0.3 V• Ignition onGo to Step 2• Measure voltage at P/N locksolenoid between 'pin A2'and ground and between'pin A4' of shiftlocksolenoid plug and ground.Measurement '2a'• Ignition off• Measure resistance between'pin 29' on Tiptronic controlunit plug and 'pin A5' onshiftlock solenoid plug.Measurement '2b'• Measure resistance between'Pin A4' on shiftlocksolenoid plug and ground.Measurement '2c'• Measure resistance between'pin A2' on P/N locksolenoid plug and ground.Measurement '2d'• Measure resistance between'pin A1' on P/N locksolenoid plug and fuse '52'in fuse carrier at right ofdashboard.Measurement '3a'• Measure resistance between'pin A4' and 'pin A5' onshiftlock solenoid.Measurement '3b'• Measure resistance between< 5 ohmsgo to measurement'2b'< 5 ohmsgo to measurement'2c'< 5 ohmsgo to measurement'2d'< 5 ohmsGo to Step 3Repairground line(s).--> EndRepair wiringharness toTiptroniccontrol unit.--> EndRepairground line(s).ohms EndRepairground line(s).--> EndReplace fuseif faulty andrepair thewire.--> End21.2 ± 0.7 ohms Replace(at 20°C) shiftlockgo to measurement solenoid.'3b'Go to Step 11approx. 22 ohms(at 20 °C)Replace P/Nlocksolenoid.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne45Check 'P/N lock solenoid' formechanical functionality:Check 'shiftlock solenoid' formechanical functionality:'pin A1' and 'pin A2' on P/Nlock solenoid.• Selector lever in position 'P'• Remove plug <strong>from</strong> 'P/Nlock solenoid'• Ignition on (Keylockunlocked)• Selector lever locked• Using an auxiliary cableprotected with a '5 amp'fuse, at 'P/N lock solenoid'briefly connect 'pin A1' to'12 V battery voltage(approx.)' and 'pin A2' toground.• A distinct click must beheard <strong>from</strong> the 'P/N locksolenoid'.• Actuate locking button onselector lever and check ifthe lever can be moved to'N'.Go to Step 4 Go to Step 10Selector lever isfreeGo to Step 5• Selector lever in position 'N'• Remove plug <strong>from</strong> <strong>from</strong>shiftlock solenoid• Ignition on (Keylockunlocked)• Selector lever free• Using an auxiliary cableprotected with a '5 amp'fuse, at 'P/N lock solenoid' Selector lever isbriefly connect 'pin A5' to locked'12 V battery voltage Go to Step 6(approx.)' and 'pin A4' toground.• A distinct click must beheard <strong>from</strong> the 'shiftlocksolenoid'.• Actuate locking button onselector lever and check ifthe lever can be moved to 'Ror D'.• Use the 9588 PorscheSelector leveris lockedGo to Step 10Selector leveris freeGo to Step 11

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne6Check signal inputs <strong>from</strong> stoplight switch:System Tester II in themenu 'Input signals' toselect the menu item 'Stoplight switch'• Foot brake released• Foot brake actuatedThe following information isdisplayed: 'Stop light switch on'Go to Step 9Measurement '7a'The followinginformation isdisplayed: 'Stoplight switch off'Go to Step 7Go to Step 77 Check stop light switch:8Check lead <strong>from</strong> stop lightswitch and to Tiptronic controlunit:• Pull plug off stop lightswitch and measureresistance between 'pin A2'and 'pin A3' with foot brakeactuated.Measurement '7b'• Measure resistance withoutactuating foot brake.• Measure open circuit andshort circuit to B+ of signalline and supply line <strong>from</strong>stop light switch toTiptronic control unit 'pin49'.2. Troubleshooting only for fault type: 'Short circuit to ground'< 5 ohmsgo to measurement'7b'infinity ohmsGo to Step 8Go to Step 129 Check mechanical selector lever lock (Keylock) Go to Step 1210 Replace P/N lock solenoid --> End11 Replace shiftlock solenoid --> End12 Replace Tiptronic control module --> EndReplace stoplight switch.--> EndReplace stoplight switch.--> EndRepair lead(s).--> EndRepairKeylock.--> EndNOTE:The P/N lock solenoid is protected by fuse '52' in the fuse carrier at theright of the dashboard. This fuse should be checked for continuity andreplaced if not OK.TROUBLESHOOTING PROCEDURE SHORT CIRCUIT TO GROUNDWork instruction Display OK If not OKMeasurement '1a'• Ignition off 21.2 ± 0.7 ohmsPull plug off'shiftlock

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne1Check for short circuit toground of the control linebetween Tiptronic controlunit and 'shiftlock solenoid'and of the voltage supply for'shift-lock solenoid':• Pull plug off the Tiptroniccontrol module• Measure resistance between'pin 29' and ground onTiptronic control unit plug.Measurement '1b'• Remove plug <strong>from</strong> 'shiftlocksolenoid'• Measure resistance between'pin 29' and ground onTiptronic control unit plug.Measurement '1c'(at 20°C)go tomeasurement '1c'infinity ohmsGo to Step 2solenoid' andrepeatmeasurement.See measurement'1b'Repair wire.--> End23Check for short circuit in thecoil of 'shiftlock solenoid'and 'P/N lock solenoid':Check 'P/N lock solenoid'for mechanicalfunctionality:• Remove plug <strong>from</strong> 'P/Nlock solenoid'• Switch on ignition• Measure voltage between'pin A1' on disconnectedplug of P/N lock solenoidand ground.Measurement '2a'• Measure resistance between'pin A4' and 'pin A5' onshiftlock solenoid.Measurement '2b'• Measure resistance between'pin A1' and 'pin A2' on P/Nlock solenoid.• Selector lever in position 'P'• Remove plug <strong>from</strong> 'P/Nlock solenoid'• Ignition on (Keylockunlocked)• Selector lever locked• Using an auxiliary cableprotected with a '5 amp'fuse, at 'P/N lock solenoid'briefly connect 'pin A1' to'12 V battery voltage(approx.)' and 'pin A2' toground.11.4 to 14.5 VGo to Step 221.2 ± 0.7 ohms(at 20°C)go tomeasurement '2b'approx. 22 ohms(at 20 °C)Go to Step 3Selector lever isfreeGo to Step 4Replace fuse iffaulty and repairthe wire.--> EndGo to Step 10Go to Step 9Selector lever islockedGo to Step 9

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• A distinct click must beheard <strong>from</strong> the 'P/N locksolenoid'.• Actuate locking button onselector lever and check ifthe lever can be moved to'N'.4Check 'shiftlock solenoid'for mechanicalfunctionality:• Selector lever in position 'N'• Remove plug <strong>from</strong> shiftlocksolenoid• Ignition on (Keylockunlocked)• Selector lever free• Using an auxiliary cableprotected with a '5 amp'fuse, at 'P/N lock solenoid' Selector lever isbriefly connect 'pin A5' to locked'12 V battery voltage Go to Step 5(approx.)' and 'pin A4' toground.• A distinct click must beheard <strong>from</strong> the 'shiftlocksolenoid'.• Actuate locking button onselector lever and check ifthe lever can be moved to 'Ror D'.Selector lever isfreeGo to Step 105Check signal inputs <strong>from</strong>stop light switch:• Use the 9588 PorscheSystem Tester II in themenu 'Input signals' toselect the menu item 'Stoplight switch'• Foot brake released• Foot brake actuatedThe followinginformation isdisplayed: 'Stoplight switch off'Go to Step 6The followinginformation isdisplayed: 'Stoplight switch on'Go to Step 86 Check stop light switch:• Pull plug off stop lightswitch and measureresistance on 'pin A2' and'pin A3' with foot brake< 5 ohmsReplace stop lightswitch.--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneactuated.• Measure resistance withoutactuating foot brake.infinity ohmsGo to Step 7Replace stop lightswitch.--> End7Check lead <strong>from</strong> stop lightswitch and to Tiptroniccontrol unit:• Measure short circuit toground of signal line andsupply line <strong>from</strong> stop lightswitch to Tiptronic controlunit 'pin 49'.Go to Step 118 Check mechanical selector lever lock (Keylock) Go to Step 119 Replace P/N lock solenoid --> End10 Replace shiftlock solenoid --> End11 Replace Tiptronic control module --> EndRepair wiring.--> EndRepair Keylock.--> EndFAULT CODE 1312/P0864/P0865CAN DRIVE [TCM COMMUNICATION CIRCUIT LOW/TCM COMMUNICATION CIRCUITRANGE/PERFORMANCE]Diagnostic conditions• Ignition on• Internal Tiptronic control module function testPossible cause of faultCommunication problem with all control modules via CAN drive.• CAN drive is faulty• No signal/communicationAffected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal/message via the CAN drive using several controlmodules, the CAN drive must be checked for open or short circuits. Refer to'CHECKING INSTRUCTIONS/CAN DATA BUS '.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 CHECKING INSTRUCTIONS/CAN DATA BUS . --> EndFAULT CODE 1314/P0614/P0864DME CONTROL UNIT [ECM/TCM INCOMPATIBLE / TCM COMMUNICATION CIRCUITRANGE/PERFORMANCE]Diagnostic conditions• Ignition on• Internal control unit function testPossible causes of faultNOTE:The Tiptronic control unit is coded in the DME control unit!DME control unit was replaced and coded incorrectly or was not coded (no or incorrect basic setting/adaptation)• Engine type coded incorrectly (no or incorrect basic setting/adaptation)• Transmission type coded incorrectly (no or incorrect basic setting/adaptation)• To localize the fault, read out the fault memory for the 'DME control unit' (Please read out fault memory)• No message <strong>from</strong> DME control unit on CAN drive (no signal/communication)Affected pinsTiptronic control unit plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal/message via the CAN drive using several controlunits, the CAN drive must be checked for open or short circuits. Refer to'CHECKING INSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKCheck DME control unit coding and1correct it if necessary--> EndFor further troubleshooting, please follow the diagnosisRead out fault memory for DME instructions for the DME control module in FUEL SYSTEM,

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennecontrol unit (fault localization) ELECTRONIC INJECTION .2--> EndCHECKING3 INSTRUCTIONS/CAN DATA --> EndBUS .FAULT CODE 1316PSM CONTROL MODULEDiagnostic conditions• Ignition on• Internal control module function test• Vehicle speed greater than 0 km/hPossible causes of fault• To locales the fault, read out the fault memory for the 'PSM control module' (Please read out faultmemory)• No message <strong>from</strong> PSM control module on CAN drive (no signal/communication)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal/message via the CAN drive using several controlmodules, the CAN drive must be checked for open or short circuits. Refer to'CHECKING INSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKTo eliminate further faults, please follow theRead out fault memory for PSM control diagnosis/troubleshooting instructions for the PSM control1module (fault localization)module in the PSM article .--> EndCHECKING INSTRUCTIONS/CAN2 --> EndDATA BUS .

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFAULT CODE 1435PRESSURE SENSOR (BRAKES)Diagnostic conditions• Ignition on• Internal control module function test• Actuate brake and then release it againPossible cause of fault• Signal <strong>from</strong> PSM control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> PSM control module does not correspond to expected signal (short circuit to ground)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out PSM control module fault1memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .FAULT CODE 1679SPEED SIGNAL, FRONT LEFT WHEELDiagnostic conditions• Ignition onFor further troubleshooting, please follow the diagnosisinstructions for the PSM control module in the PSM article .--> End--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Internal control module function test• Vehicle speed greater than 0 km/hPossible cause of fault• Signal <strong>from</strong> PSM control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> PSM control module does not correspond to expected signal (implausible signal)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out PSM control module fault1memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .FAULT CODE 1680SPEED SIGNAL, FRONT RIGHT WHEELDiagnostic conditions• Ignition on• Internal control module function test• Vehicle speed greater than 0 km/hPossible cause of faultFor further troubleshooting, please follow the diagnosisinstructions for the PSM control module in the PSM article .--> End--> End• Signal <strong>from</strong> PSM control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> PSM control module does not correspond to expected signal (implausible signal)

DIAGNOSIS/TROUBLESHOOTING G 02102006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneAffected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out PSM control module fault1memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .FAULT CODE 1681SPEED SIGNAL, REAR LEFT WHEELDiagnostic conditions• Ignition on• Internal control module function test• Vehicle speed greater than 0 km/hPossible cause of fault• Signal <strong>from</strong> PSM control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> PSM control module does not correspond to expected signal (implausible signal)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'For further troubleshooting, please follow the diagnosisinstructions for the PSM control module in the PSM article .--> End--> End

Read out PSM control module faultFor further troubleshooting, please follow the diagnosis2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out PSM control module fault1memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .FAULT CODE 1682SPEED SIGNAL, REAR RIGHT WHEELDiagnostic conditions• Ignition on• Internal control module function test• Vehicle speed greater than 0 km/hPossible cause of fault• Signal <strong>from</strong> PSM control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> PSM control module does not correspond to expected signal (implausible signal)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210For further troubleshooting, please follow the diagnosisinstructions for the PSM control module in the PSM article .--> End--> EndNOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennememory instructions for the PSM control module in the PSM article .1--> EndCHECKING2 INSTRUCTIONS/CAN DATA --> EndBUS .FAULT CODE 1683SPEED SIGNAL, PSM CONTROL MODULEDiagnostic conditions• Ignition on• Internal control module function test• Vehicle speed greater than 0 km/hPossible cause of fault• Signal <strong>from</strong> PSM control module does not correspond to expected signal (please read out fault memory)• Signal <strong>from</strong> PSM control module does not correspond to expected signal (implausible signal)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal via the CAN drive using several control modules,the CAN drive must be checked for open or short circuits. Refer to 'CHECKINGINSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out PSM control module fault1memoryCHECKING2 INSTRUCTIONS/CAN DATABUS .FAULT CODE 1847For further troubleshooting, please follow the diagnosisinstructions for the PSM control module in the PSM article .--> End--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneTRANSFER BOX CONTROL MODULEDiagnostic conditions• Ignition on• Internal control module function testPossible causes of fault• To locales the fault, read out the fault memory for the 'transfer box control module' (Please read out faultmemory)• The signal received <strong>from</strong> the Tiptronic control module via the CAN drive does not correspond to theexpected signal (implausible signal)• No message <strong>from</strong> transfer box control module on CAN drive (no signal/communication)Affected pinsTiptronic control module plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal/message via the CAN drive using several controlmodules, the CAN drive must be checked for open or short circuits. Refer to'CHECKING INSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKTo eliminate further faults, please follow theRead out fault memory for transfer box diagnosis/troubleshooting instructions for the transfer box1control module (fault localization) control module in TRANSFER BOX .--> EndCHECKING INSTRUCTIONS/CAN2 --> EndDATA BUS .FAULT CODE 1871ROCKER SWITCH (STEERING COLUMN SWITCH)NOTE:The ignition must be switched off and then switched on again in order todisplay a fault indication in the instrument cluster.

Remedy2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneactual values of the shift solenoid valves and sensors.Diagnostic conditions• Ignition on• Internal Tiptronic control unit function test• Operate rocker switch during drivingPossible causes of fault• 'implausible signal'Affected pinsTiptronic control unit plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'Diagnosis/troubleshooting G 0210NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control unit plug connection and the 'pins'on the 'existing transmission wiring' plug connection are neither damaged norcorroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control unit. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlunit' should be detected and remedied.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instructionCheck wiring <strong>from</strong>1 rocker switches tosteering column switch:Read out fault memory in2 steering column switch(control unit)• Check wires for chafing damage and opencircuit Check for open circuit by measuringresistance of individual wires.• For further troubleshooting, please follow thediagnosis instructions for the STEERINGCOLUMN SWITCH .DisplayOKGo toStep 2Go toStep 3If not OKReplacewiringharness.--> EndRemedyfault.--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne3 CHECKING INSTRUCTIONS/CAN DATA BUS .Go toStep 44 Replace control unit --> Endfault.--> EndFAULT CODE 2053TRANSFER BOX CONTROL UNITDiagnostic conditions• Ignition on• Internal control unit function testNOTE:For this fault there is no message in the instrument cluster and the CheckEngine warning light remains out. For its internal calculations, the Tiptroniccontrol unit uses the last stored value obtained via the CAN drive.Possible cause of fault• Signal <strong>from</strong> transfer box control unit does not correspond to expected signal (please read out faultmemory)• Signal <strong>from</strong> transfer box control unit does not correspond to expected signal (implausible signal)• No message via CAN drive (no signal/communication)• Transfer box control unit faultyAffected pinsTiptronic control unit plug:• Pin 34 'CAN drive (low)'• Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210NOTE:If there is no incoming signal/message via the CAN drive using several controlunits, the CAN drive must be checked for open or short circuits. Refer to'CHECKING INSTRUCTIONS/CAN DATA BUS '.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKRead out transfer box control unit1fault memoryFor further troubleshooting, please follow the diagnosisinstructions for the transfer box control unit in TRANSFERBOX .--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCHECKING2 INSTRUCTIONS/CAN DATABUS .3 Replace transfer box control unit--> EndIf CAN drive check is OK:--> EndFAULT CODE P0604TIPTRONIC CONTROL MODULE [INTERNAL CONTROL MODULE RANDOM ACCESSMEMORY (RAM) ERROR]Diagnostic conditions• Ignition on• Internal Tiptronic control module function testPossible causes of fault• 'Tiptronic control module faulty' - internal system fault, limited functionalityAffected pinsDIAGNOSIS/TROUBLESHOOTING G 0210NOTE:• Before replacing the control module, the ground connections, powersupply and plug connections on the control module must be checked.• When replacing the Tiptronic control module, observe the coding of thecontrol module.• After the test drive, read out the fault memory with the Porsche SystemTester II No. 9588 again. Additional causes of faults that could damage theTiptronic control module should be detected and remedied.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic control module --> EndFAULT CODE P0605TIPTRONIC CONTROL MODULE [INTERNAL CONTROL MODULE READ MEMORY (ROM)ERROR]Diagnostic conditions• Ignition on

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Internal Tiptronic control module function testPossible causes of fault• 'Tiptronic control module faulty' - internal system fault, limited functionalityAffected pinsDiagnosis/troubleshooting G 0210NOTE:• Before replacing the control module, the ground connections, powersupply and plug connections on the control module must be checked.• When replacing the Tiptronic control module, observe the coding of thecontrol module.• After the test drive, read out the fault memory with the Porsche SystemTester II No. 9588 again. Additional causes of faults that could damage theTiptronic control module should be detected and remedied.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic control module --> EndFAULT CODE P0613TIPTRONIC CONTROL MODULE/CAN DRIVE OFF [TCM PROCESSOR]Diagnostic conditions• Ignition on• Internal Tiptronic control module function testPossible causes of fault• 'Tiptronic control module faulty'• 'No signal/communication' - no communication with Tiptronic control module via CAN driveAffected pinsPin 34 'CAN drive (low)'Pin 46 'CAN drive (high)'DIAGNOSIS/TROUBLESHOOTING G 0210

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:• Before replacing the control module, the ground connections, powersupply and plug connections on the control module must be checked.• When replacing the Tiptronic control module, observe the coding of thecontrol module.• After the test drive, read out the fault memory with the Porsche SystemTester II No. 9588 again. Additional causes of faults that could damage theTiptronic control module should be detected and remedied.DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic control module --> End1 CHECKING INSTRUCTIONS/CAN DATA BUS . --> EndFAULT CODE P0715INPUT SHAFT SPEED (TURBINE SPEED) INDUCTIVE PICKUP [INPUT/TURBINE SPEEDSENSOR 'A' CIRCUIT]Engine speed is the same as input shaft speed and is used for further calculations!NOTE:The ignition must be switched off and then switched on again in order todisplay a fault indication in the instrument cluster.Diagnostic conditions• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control unit function test completed successfully• Engine running without malfunction, speed '> 400 rpm'• Brake not actuated• No fault in DME control unit• No fault in CAN driveNo rpm signal <strong>from</strong> 'Input shaft speed inductive pickup' for 250 msec. The fault is stored in fault memoryafter two occurrences.Possible causes of fault• 'Electrical fault in circuit', short circuit to B+ in wiring harness• 'Electrical fault in circuit', short circuit within wiring harness• 'Electrical fault in circuit', short circuit to ground in wiring harness• 'Electrical fault in circuit', open circuit in wiring harness

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• 'Electrical fault in circuit', Tiptronic control unit faultAffected pinsTiptronic control unit plug:• Pin 39 'Input shaft speed inductive pickup', to existing transmission wiring plug 'pin B4'• Pin 51 'Input shaft speed inductive pickup', to existing transmission wiring plug 'pin B3'DIAGNOSIS/TROUBLESHOOTING G 0210Fig. 30: Wiring Diagram Of Input Shaft Speed (Turbine Speed) Inductive PickupCourtesy of PORSCHE OF NORTH AMERICA, INC.Data on 'input shaft speed inductive pickup'The internal resistance cannot be measured!• Sensor Type: Hall IC• Max. current: 65 mA• No. of pulses: 12 per input shaft revolutionNOTE:Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control unit. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlunit' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction123456Check for short circuit to B+with 'Tiptronic control unit'plug disconnected and sensorplug connected (existingtransmission wiring):Check for short circuit toground with 'Tiptronic controlunit' plug disconnected andsensor plug connected (existingtransmission wiring):Check for short circuit toground with both 'Tiptroniccontrol unit' plug and sensorplug disconnected (existingtransmission wiring):Check for short circuit toground with input shaft speedinductive pickup intransmission disconnected:Check for short circuit with'Tiptronic control unit' plugdisconnected and sensor plugconnected (existingtransmission wiring):Check for short circuit withboth 'Tiptronic control unit'plug and sensor valve plugdisconnected (existing• Ignition offDisplayOK• Pull plug off Tiptronic controlunit< 0.3 V• Ignition onGo toStep 2• Measure voltage between 'pins39, 51' and ground on Tiptroniccontrol unit plug.• Ignition off• Measure resistance between'pin 51' and ground onTiptronic control unit plug.• Measure resistance between'pin 51' and ground onTiptronic control unit plug.(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Pull off plug on input shaftspeed inductive pickup• Measure resistance between'pin B3' on disconnected plug(wiring side) and ground(transmission housing).• Measure resistance between'pins 39, 51' and pins '8, 24, 25,38, 45, 50' on Tiptronic controlunit plug.• Pull off sensor plug (existingtransmission wiring)• Measure resistance between'pins 39, 51' and pins '8, 24, 25,38, 45, 50' on Tiptronic controlinfinityohmsGo toStep 5infinityohmsGo toStep 4infinityohmsGo toStep 11infinityohmsGo toStep 8infinityohmsGo toStep 7If not OKRepair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndGo to Step 3Repair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndGo to Step 10Go to Step 6Repair wiring harnessto Tiptronic controlunit (existingtransmission wiring).

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne789transmission wiring): unit plug. --> End(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:Check for short circuit withboth 'Tiptronic control unit'plug and input shaft speedinductive pickup plugdisconnected (in transmission):Check for open circuit inwiring with both 'Tiptroniccontrol unit' plug and sensorplug disconnected (existingtransmission wiring):Check for open circuit withboth 'Tiptronic control unit'plug and input shaft speedinductive pickup plugdisconnected (in transmission):• Connect sensor plug (existingtransmission wiring)• Pull off plug on input shaftspeed inductive pickup• Measure resistance between'pins 39, 51' and pins '8,24,25,38, 45, 50' on Tiptronic controlunit plug.• Measure resistance of wiringbetween 'pins 39, 51' onTiptronic control unit plug and'pins B3, B4' of sensor plug(existing transmission wiring).(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Connect sensor plug (existingtransmission wiring)• Pull off plug on input shaftspeed inductive pickup• Measure resistance in the wiresbetween 'pins 39, 51' onTiptronic control unit plug andpins B3, B4' on input shaftspeed inductive pickup plug.infinityohmsGo toStep 11< 5ohmsGo toStep 9< 5ohmsGo toStep 11Go to Step 10Repair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndGo to Step 1010 Replace wiring harness in the transmission --> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.11 Replace input shaft speed inductive pickup--> EndIf fault has not been remediedafter the replacement, then:Go to Step 12See note on replacing control

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne12 Replace control unitunits!--> EndFAULT CODE P0716INPUT SHAFT SPEED (TURBINE SPEED) INDUCTIVE PICKUP [INPUT/TURBINE SPEEDSENSOR 'A' CIRCUIT RANGE/PERFORMANCE]The engine speed is the same as the input shaft speed and will be used for further calculations!NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Diagnostic conditions• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Brake not actuated• No faults stored for DME control module• PSM speed > 10 km/h• No electrical faults in input shaft speed inductive pickup• No faults stored for CAN driveNo rpm signal 'Input shaft speed inductive pickup' for 250 msec. The fault is stored in memory after itoccurs twice.Possible causes of fault• 'Implausible signal', mechanical damage in sensor wheel or inductive pickup• 'Implausible signal', inductive pickup faulty• 'Implausible signal', Tiptronic control module faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 31: Wiring Diagram Of Input Shaft Speed (Turbine Speed) Inductive PickupCourtesy of PORSCHE OF NORTH AMERICA, INC.Data on 'input shaft speed inductive pickup'Internal resistance cannot be measured!• Sensor type: Hall-IC• Max. current: 65 mA• Number of pulses: 12 per input shaft revolutionNOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKVisual inspection of input1shaft speed inductive pickup(Observe warning notes!) Remove ATF pan on the transmission (firstdrain fluid). Remove ATF filter, check plug/wiring and inductive pickupfor damage:Go to Step 2Replace input shaft speed2inductive pickupIf the fault is corrected by replacing inductive pickup:--> EndIf the fault persists after replacing inductive pickup:

Tiptronic control unit plug:2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne3 Replace control moduleGo to Step 3See note on replacing control modules!--> EndFAULT CODE P0720OUTPUT SHAFT SPEED INDUCTIVE PICKUP [OUTPUT SPEED SENSOR CIRCUIT]The PSM signal is used for further calculations!NOTE:NOTE:Stiff shifting operations with the vehicle standing. In the event of a double fault(output shaft speed inductive pickup and PSM fault), the reverse gear can beengaged during driving. The output shaft speed is then calculated via the inputshaft speed.The ignition must be switched off and then switched on again in order todisplay a fault indication in the instrument cluster.Diagnostic conditions• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control unit function test completed successfully• Engine running without malfunction, speed '> 400 rpm'• Brake not actuated• PSM speed > 10 km/h• CAN drive functioning• No PSM faultsMeasured input voltage < 0.2 V or > 3.8 V for 100 msec. The fault is stored in fault memory after fiveoccurrences.Possible causes of fault• 'Electrical fault in circuit', short circuit to B+ in wiring harness• 'Electrical fault in circuit', short circuit within wiring harness• 'Electrical fault in circuit', short circuit to ground in wiring harness• 'Electrical fault in circuit', open circuit in wiring harness• 'Electrical fault in circuit', Tiptronic control unit faultAffected pins

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Pin 38 'output shaft speed inductive pickup', to existing transmission wiring plug 'pin B5'• Pin 50 'output shaft speed inductive pickup', to existing transmission wiring plug 'pin B6'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram for output shaft speed inductive pickupFig. 32: Wiring Diagram For Output Shaft Speed Inductive PickupCourtesy of PORSCHE OF NORTH AMERICA, INC.Data on 'output shaft speed inductive pickup'The internal resistance cannot be measured!• Sensor Type: Hall IC• Max. current: 65 mA• No. of pulses: 24 per output shaft revolutionNOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control unit plug connection and the 'pins'on the 'existing transmission wiring' plug connection are neither damaged norcorroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.NOTE:Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control unit. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlunit' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Wear suitable protective clothing!• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction123456Check for short circuit to B+with 'Tiptronic control unit'plug disconnected and sensorplug connected (existingtransmission wiring):Check for short circuit toground with 'Tiptronic controlunit' plug disconnected andsensor plug connected (existingtransmission wiring):Check for short circuit toground with both 'Tiptroniccontrol unit' plug and sensorplug disconnected (existingtransmission wiring):Check for short circuit toground with output shaft speedinductive pickup intransmission disconnected:Check for short circuit with'Tiptronic control unit' plugdisconnected and sensor plugconnected (existingtransmission wiring):Check for short circuit withboth 'Tiptronic control unit'plug and sensor valve plugdisconnected (existing• Ignition offDisplayOK• Pull plug off Tiptronic controlunit< 0.3 V• Ignition onGo toStep 2• Measure voltage between 'pins38, 50' and ground on Tiptroniccontrol unit plug.• Ignition off• Measure resistance between'pin 38' and ground onTiptronic control unit plug.• Measure resistance between'pin 38' and ground onTiptronic control unit plug.(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Pull off plug on output shaftspeed inductive pickup• Measure resistance between'pin B5' on disconnected plug(wiring side) and ground(transmission housing).• Measure resistance between'pins 38, 50' and pins '8, 24, 25,39, 45, 51' on Tiptronic controlunit plug.• Measure resistance between'pins 38, 50' and pins '8, 24, 25,39, 45, 51' on Tiptronic controlinfinityohmsGo toStep 5infinityohmsGo toStep 4infinityohmsGo toStep 11infinityohmsGo toStep 8infinityohmsGo toIf not OKRepair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndGo to Step 3Repair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndGo to Step 10Go to Step 6Repair wiring harnessto Tiptronic controlunit (existingtransmission wiring).

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne789transmission wiring): unit plug. Step 7 --> End(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:Check for short circuit withboth 'Tiptronic control unit'plug and output shaft speedinductive pickup plugdisconnected (in transmission):Check for open circuit inwiring with both 'Tiptroniccontrol unit' plug and sensorplug disconnected (existingtransmission wiring):Check for open circuit withboth 'Tiptronic control unit'plug and output shaft speedinductive pickup plugdisconnected (in transmission):• Connect sensor plug (existingtransmission wiring)• Pull off plug on output shaftspeed inductive pickup• Measure resistance between'pins 38, 50' and pins '8, 24, 25,39, 45, 51' on Tiptronic controlunit plug.• Measure resistance of wiringbetween 'pins 38, 50' onTiptronic control unit plug and'pins B5, B6' of sensor plug(existing transmission wiring).(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Connect sensor plug (existingtransmission wiring)• Pull off plug on output shaftspeed inductive pickup• Measure resistance between'pins 38, 50' of Tiptroniccontrol unit plug and pins 'B5,B6' of output shaft speedinductive pickup plug.infinityohmsGo toStep 11< 5ohmsGo toStep 9< 5ohmsGo toStep 11Go to Step 10Repair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndGo to Step 1010 Replace wiring harness in the transmission --> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.11 Replace output shaft speed inductive pickup--> EndIf fault has not been remediedafter the replacement, then:Go to Step 12See note on replacing control

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne12 Replace control unitunits!--> EndFAULT CODE P0721OUTPUT SHAFT SPEED INDUCTIVE PICKUP [OUTPUT SPEED SENSOR CIRCUITRANGE/PERFORMANCE]The PSM signal is used for further calculations!NOTE:Rough gear shifts while vehicle is stationary. In the event of two faults (outputshaft speed inductive pickup and PSM fault), reverse gear can be engaged whilethe vehicle is in motion. The output shaft speed is calculated using the inputshaft speed.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Diagnostic conditions• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Brake not actuated• PSM speed > 10 km/h• No electrical faults in output shaft speed inductive pickup• No faults stored for CAN drive• No PSM faultsNo difference in speed between PSM signal and output shaft speed inductive pickup > 25% for 250 msec.The fault is stored in memory after it occurs 40 times.Possible causes of fault• 'Implausible signal', mechanical damage in sensor wheel or inductive pickup• 'Implausible signal', inductive pickup faulty• 'Implausible signal', Tiptronic control module faultyAffected pinsTiptronic control module plug:

1Visual inspection of output(Observe warning notes!) Remove ATF pan on the transmission (firstdrain fluid). Remove ATF filter, check plug/wiring and inductive pickup2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of output shaft speed inductive pickupFig. 33: Wiring Diagram Of Output Shaft Speed Inductive PickupCourtesy of PORSCHE OF NORTH AMERICA, INC.Data on 'output shaft speed inductive pickup'Internal resistance cannot be measured!• Sensor type: Hall-IC• Max. current: 65 mA• Number of pulses: 24 per output shaft revolutionNOTE:Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneshaft speed inductive pickupReplace output shaft speed2inductive pickup3 Replace control modulefor damage:Go to Step 2If the fault is corrected by replacing inductive pickup:--> EndIf the fault persists after replacing inductive pickup:Go to Step 3See note on replacing control modules!--> EndFAULT CODE P0729GEAR '6', INCORRECT RATIO [GEAR 6 INCORRECT RATIO]The target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio for gear 6'.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 2: Fault caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 2' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D' and gear 6 engaged• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• No electrical faults stored for shift solenoid valves and modulation pressure• Output shaft speed >= 250 rpmThis fault is set after the following conditions have occurred 12 times:• Calculated value in 'gear 4' is less than the default value for more than one second• or: Calculated value in 'gear 5' is less than the default value for more than one second• or: Calculated value in 'gear 6' is greater than the default value for more than one secondPossible causes of faultNOTE:There is a fault in the mechanical/hydraulic parts of the transmission.• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', hydraulic control unit faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic transmission --> EndFAULT CODE P0730INCORRECT GEAR RATIOSkin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!The target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio of selected gear'.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D'• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft• No electrical faults in solenoid valves: shift solenoid valve (S2), shift solenoid valve C1 (modulationpressure), modulation pressure solenoid valve (main)• Wheels on vehicle are not turningThis fault is set after the following conditions have occurred:Output shaft speed >= 250 rpm or output shaft speed >= 300 rpm• Calculated value occurred 12 times and lasted for more than one secondPossible causes of faultNOTE:There is a fault in the mechanical/hydraulic parts of the transmission.• 'Mechanical fault', shift solenoid valve (S2) jams• 'Mechanical fault', shift solenoid valve C1 (modulation pressure) jams• 'Mechanical fault', abrupt switching <strong>from</strong> 'gear 2 to gear 1', modulation pressure solenoid valve (main)jams• 'Mechanical fault', hydraulic control unit faulty or screws loose• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', ATF pump faulty

Check the mechanicalfunctionality of the• Pull plug off the modulation pressure solenoidvalve (main).• Using a suitable auxiliary cable that is fuseprotectedin accordance with the powerGo to Step Shift solenoid2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instructionCheck the mechanicalfunctionality of theshift solenoid valve(S2) directly at thevalve:Check the mechanicalfunctionality of the2 shift solenoid valve C1(modulation pressure)directly at the valve:(Observe warning notes!) Remove ATF pan on thetransmission (first drain fluid). Remove ATF filter,perform visual inspection of plug and wiring:DisplayOKIf not OK• Pull plug off the shift solenoid valve (S2).Shift solenoidGo to Step• Using a suitable auxiliary cable that is fuseprotectedin accordance with the powerGo to Step 4valve stiff.2consumption of the shift solenoid valve, supply'approx. 12 V battery voltage' to the shiftsolenoid valve for a short time. A distinct clickshould be heard <strong>from</strong> the shift solenoid valve.• Pull plug off the shift solenoid valve C1(modulation pressure).• Using a suitable auxiliary cable that is fuseprotectedin accordance with the powerShift solenoidconsumption of the shift solenoid valve, supply Go to Stepvalve stiff.'approx. 12 V battery voltage' to 'pin A3' and 3Go to Step 5ground to 'pin A4' of the shift solenoid valvefor a short time. A distinct clicking soundshould be heard immediately <strong>from</strong> the shiftsolenoid valve.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennemodulation pressuresolenoid valve (main)directly at the valve:3FAULT CODE P0731consumption of the shift solenoid valve, supply'approx. 12 V battery voltage' to 'pin A13' andground to 'pin A14' of the shift solenoid valvefor a short time. A distinct clicking soundshould be heard immediately <strong>from</strong> the shiftsolenoid valve.GEAR '1', INCORRECT RATIO [GEAR 1 INCORRECT RATIO]7 valve stiff.Go to Step 6Only replace if the wiringin the transmission waschecked for chafing4 Replace shift solenoid valve (S2)damage and found to beOK.--> EndOnly replace if the wiringin the transmission waschecked for chafing5 Replace shift solenoid valve C1 (modulation pressure)damage and found to beOK.--> EndOnly replace if the wiringin the transmission waschecked for chafing6 Replace modulation pressure solenoid valve (main)damage and found to beOK.--> EndIf this corrects the fault:--> End7 Replace hydraulic control unitIf the fault persists:Go to Step 88 Replace Tiptronic transmission --> EndThe target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio for gear 1'.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 2: Fault caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 2' table in the main chapter entitled 'Controlmodule function (coding/programming)'!

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneUse the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D' and gear 1 engaged• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft• No electrical faults stored for shift solenoid valves and modulation pressure• Output shaft speed >= 250 rpmThis fault is set after the following conditions have occurred 12 times:• Calculated value in 'gear 2' is less than the default value for more than one second• or: Calculated value in 'gear 3' is less than the default value for more than one second• or: Calculated value in 'gear 4' is less than the default value for more than one secondPossible causes of faultNOTE:There is a fault in the mechanical/hydraulic parts of the transmission.• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', hydraulic control unit faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneSkin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic transmission --> EndFAULT CODE P0732GEAR '2', INCORRECT RATIO [GEAR 2 INCORRECT RATIO]The target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio for gear 2'.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 2: Fault caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 2' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D' and gear 2 engaged

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft• No electrical faults stored for shift solenoid valves and modulation pressure• Output shaft speed >= 250 rpmThis fault is set after the following conditions have occurred 12 times:• Calculated value in 'gear 1' is less than the default value for more than one second• or: Calculated value in 'gear 2' is greater than the default value for more than one second• or: Calculated value in 'gear 3' is less than the default value for more than one second• or: Calculated value in 'gear 4' is less than the default value for more than one second• or: Calculated value in 'gear 6' is less than the default value for more than one secondPossible causes of faultNOTE:There is a fault in the mechanical/hydraulic parts of the transmission.• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', hydraulic control unit faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic transmission --> EndFAULT CODE P0733Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!

NOTE:There is a fault in the mechanical/hydraulic parts of the transmission.2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneThe target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio for gear 3'.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 2: Fault caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 2' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D' and gear 3 engaged• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft• No electrical faults stored for shift solenoid valves and modulation pressure• Output shaft speed >= 250 rpmThis fault is set after the following conditions have occurred 12 times:• Calculated value in 'gear 1' is less than the default value for more than one second• or: Calculated value in 'gear 3' is greater than the default value for more than one second• or: Calculated value in 'gear 4' is less than the default value for more than one second• or: Calculated value in 'gear 5' is less than the default value for more than one secondPossible causes of fault

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', hydraulic control unit faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic transmission --> EndFAULT CODE P0734Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!GEAR '4', INCORRECT RATIO [GEAR 4 INCORRECT RATIO]The target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio for gear 4'.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 2: Fault caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 2' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditions

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D' and gear 4 engaged• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft• No electrical faults stored for shift solenoid valves and modulation pressure• Output shaft speed >= 250 rpmThis fault is set after the following conditions have occurred 12 times:• Calculated value in 'gear 1' is less than the default value for more than one second• or: Calculated value in 'gear 4' is greater than the default value for more than one second• or: Calculated value in 'gear 5' is less than the default value for more than one second• or: Calculated value in 'gear 6' is less than the default value for more than one secondPossible causes of faultNOTE:There is a fault in the mechanical/hydraulic parts of the transmission.• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', hydraulic control unit faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic transmission --> EndFAULT CODE P0735• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!GEAR '5', INCORRECT RATIO [GEAR 5 INCORRECT RATIO]The target gear specified by the Tiptronic control module is compared with the current gear. This fault is set ifthe detected gear is not the same as the target gear. The detected gear is determined <strong>from</strong>: 'input shaft speed(turbine speed) inductive pickup - output shaft speed inductive pickup' x 'transmission ratio for gear 5'.NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.System in limp-home mode 2: Fault caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 2' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid > 20°C• Selector lever in position 'D' and gear 5 engaged• No selector lever faults• No speed faults in sensors: PSM, input shaft (turbine wheel), output shaft

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• No electrical faults stored for shift solenoid valves and modulation pressure• Output shaft speed >= 250 rpmThe result of 'input shaft speed (turbine speed) inductive pickup - output shaft speed inductive pickup' x'transmission ratio of selected gear' is monitored.This fault is set after the following conditions have occurred 12 times:• or: Calculated value in 'gear 4' is less than the default value for more than one second• or: Calculated value in 'gear 5' is greater than the default value for more than one second• or: Calculated value in 'gear 6' is less than the default value for more than one secondPossible causes of faultNOTE:There is a fault in the mechanical/hydraulic parts of the transmission.• 'Mechanical fault', clutch or brake band faulty• 'Mechanical fault', hydraulic control unit faultyAffected pinsTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OK1 Replace Tiptronic transmission --> EndFAULT CODE P0840Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!OIL PRESSURE SWITCH 1, TRANSMISSION [TRANSMISSION FLUID PRESSURESENSOR/SWITCH 'A' CIRCUIT]

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.NOTE:This fault indicates that the solenoid/control valves in the hydraulic pressurecircuit of 'oil pressure switch 1' keep jamming/sticking, or that 'transmission oilpressure switch 1' keeps jamming/sticking!Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• No electrical faults stored1. 'Shift solenoid valve C1 (modulation pressure) or oil pressure switch 1' jams/sticks, selector lever inposition 'D' and gear 5 or 6 engaged:• Oil pressure switch 1 signal comes 'ON' 12 times and stays on for more than one second• Temperature of ATF fluid '>= 20°C• Line pressure '>= 6.0 bar'Possible causes of fault• 'Mechanical fault', 'oil pressure switch 1' signal stays 'ON' for more than one second. The Tiptroniccontrol module carried out an electrical check on the electrical wires and oil pressure switch 1 and foundthem to be OK. Oil pressure switch 1 jams/sticks mechanically.• 'Mechanical fault', 'oil pressure switch 1' signal stays 'ON' for more than one second. The Tiptroniccontrol module carried out an electrical check on the electrical wires and oil pressure switch 1 and foundthem to be OK. The 'shift solenoid valve C1 (modulation pressure)' jams/sticks mechanically.Affected pinsTiptronic control module plug:• Pin '-'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKIf the fault is corrected by replacing the oil pressureswitch:--> End1 Replace 'transmission oil pressure switch 1'--> If the fault persists after replacing the oil pressureswitch:Go to Step 2Replace shift solenoid valve C1 (modulation2 --> Endpressure)FAULT CODE P0841Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!OIL PRESSURE SWITCH 1, TRANSMISSION [TRANSMISSION FLUID PRESSURESENSOR/SWITCH 'A' CIRCUIT RANGE/PERFORMANCE]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the 9588 Porsche System Tester II to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenne• Temperature of ATF fluid > or = 20°CThe fault types 'Open circuit/Short circuit to B+' are set after the following conditions occur 12 times:• Selector lever in position 'D', gear 1, 2, 3 or 4 engaged• Oil pressure switch 1 signal is 'OFF' for more than one second• Line pressure > or = 6 barThe fault type 'Short circuit to ground' is set after the following conditions occur 12 times:• Selector lever position 'P, R, N'• Oil pressure switch 1 signal is 'ON' for more than one secondPossible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the 9588 Porsche System Tester II can be used to readout the fault type in the 'extended fault memory'.• 1.) 'Open circuit/short circuit to B+': No signal <strong>from</strong> oil pressure switch 1• 2.) 'Short circuit to ground': Continuous signal <strong>from</strong> oil pressure switch 1Affected pinsTiptronic control module plug:• Pin 24 'transmission oil pressure switch 1', existing transmission wiring plug 'pin B7'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of transmission oil pressure switch 1Fig. 34: Wiring Diagram Of Transmission Oil Pressure Switch 1

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCourtesy of PORSCHE OF NORTH AMERICA, INC.Data on transmission oil pressure switch 2• Max. power consumption: 10 mA at an operating voltage (VIG) of 16.5 VNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Control unit replacement: Before replacing the 'Tiptronic control unit', theground connections, power supply and plug connections on the control unitmust be checked as OK. Please observe the coding of the control module. Afterthe test drive, read out the fault memory with the 9588 Porsche System Tester IIagain. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Open circuit/short circuit to B+'TROUBLESHOOTING PROCEDURE FOR OPEN CIRCUIT/SHORT CIRCUIT TO B+Work instructionDisplayIf not OKOK• Switch off ignitionCheck for short circuit to B+ • Pull plug off Tiptronic control Repair wiring harnesswith 'Tiptronic control module' module< 0.3 V to Tiptronic control1 plug disconnected and sensor• Switch on ignitionGo to unit (existingplug connected (existingStep 2 transmission wiring).•transmission wiring):Measure voltage between 'pin--> End24' and ground on Tiptroniccontrol module plug.Check for short circuit with2 both 'Tiptronic control module'plug and sensor plugdisconnected (existing• Switch off ignition• Pull off sensor plug• Measure resistance between'pin B7' and pins 'B1, B2, B3,infinityohmsGo toRepair wiring harnessto Tiptronic controlunit (existingtransmission wiring).

Check for short circuit toground with both 'Tiptronic• Disconnect sensor plug(existing transmission wiring)infinityohmsRepair wiring harnessto Tiptronic control2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennetransmission wiring):Check for open circuit withboth 'Tiptronic control module'3 plug and sensor plugdisconnected (existingtransmission wiring):Check wire in the transmission4for open circuit:5 Replace oil pressure switch 16 Replace Tiptronic control moduleB4, B5, B6, B8' on sensor plug(existing transmission wiring).• Measure resistance between'pin 24' of Tiptronic controlmodule plug and 'pin B7' ofsensor plug (existingtransmission wiring).(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Sensor plug (existingtransmission wiring) connected• Measure resistance between'pin 24' on Tiptronic controlmodule plug and oil pressureswitch 1 plug.2. Troubleshooting only for fault type: 'Short circuit to ground'Step 3< 5ohmsGo toStep 4< 5ohmsGo toStep 5--> EndRepair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndReplace wiring harnessin the transmission.--> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.--> EndIf fault has not been remedied,then:Go to Step 6See note on replacing controlunits!--> EndTROUBLESHOOTING PROCEDURE FOR SHORT CIRCUIT TO GROUNDDisplayWork instructionIf not OKOK• Switch off ignitionCheck for short circuit to•ground with 'Tiptronic control Pull plug off Tiptronic control infinity1 module' plug disconnected and moduleohmsGo to Step 2sensor plug connected• Measure resistance betweenGo to(existing transmission wiring): 'pin 24' and ground onStep 5Tiptronic control module plug.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennecontrol module' plug and2 sensor plug disconnected(existing transmission wiring):Check for short circuit withboth 'Tiptronic control module'3 plug and sensor plugdisconnected (existingtransmission wiring):Check wire in the transmission4for short circuit to ground:5 Replace oil pressure switch 16 Replace Tiptronic control moduleFAULT CODE P0845• Measure resistance between'pin 24' and ground onTiptronic control module plug.• Measure resistance between'pin B7' and pins 'B1, B2, B3,B4, B5, B6, B8' on sensor plug(existing transmission wiring).(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Pull off plug on oil pressureswitch 1.• Measure resistance betweendisconnected plug (wiring side)and ground (transmissionhousing).Go toStep 3infinityohmsGo toStep 4infinityohmsGo toStep 5OIL PRESSURE SWITCH 2, TRANSMISSION [TRANSMISSION FLUID PRESSURESENSOR/SWITCH 'B' CIRCUIT]unit (existingtransmission wiring).--> EndRepair wiring harnessto Tiptronic controlunit (existingtransmission wiring).--> EndReplace wiring harnessin the transmission.--> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.--> EndIf fault has not been remedied,then:Go to Step 6See note on replacing controlunits!--> EndNOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.NOTE:This fault indicates that the solenoid/control valves in the hydraulic pressurecircuit of 'oil pressure switch 2' keep jamming/sticking, or that 'transmission oil

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennepressure switch 2' keeps jamming/sticking!System in limp-home mode 1: Fault not caused by incorrect gear ratio or unusual switching!NOTE:Please refer to 'LIMP-HOME MODE 1' table in the main chapter entitled 'Controlmodule function (coding/programming)'!Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluidmust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'1. 'Shift solenoid valve S1 or oil pressure switch 2' jams/sticks, selector lever in position 'D' and gear 1engaged:• Oil pressure switch 2 signal comes 'ON' 12 times and stays on for more than one second• Temperature of ATF fluid '>= 20°C• Line pressure '>= 4.0 bar'2. 'Hydraulic valve for activating brake band 2 or oil pressure switch 2' jams/sticks, selector lever inposition 'D' and gear 4/5 or 6 engaged:• Oil pressure switch 2 signal comes 'ON' 12 times and stays on for more than one second• Temperature of ATF fluid '>= 20°C• Line pressure '>= 6.0 bar'Possible causes of fault• 'Mechanical fault', 'oil pressure switch 2' signal stays 'ON' for more than one second. The Tiptroniccontrol module carried out an electrical check on the electrical wires and oil pressure switch 2 and foundthem to be OK. Oil pressure switch 2 jams/sticks mechanically.• 'Mechanical fault', 'oil pressure switch 2' signal stays 'ON' for more than one second. The Tiptroniccontrol module carried out an electrical check on the electrical wires and oil pressure switch 2 and foundthem to be OK. The hydraulic valve for activating brake band 2 jams/sticks mechanically.• 'Mechanical fault', 'oil pressure switch 2' signal stays 'ON' for more than one second. The Tiptroniccontrol module carried out an electrical check on the electrical wires and oil pressure switch 2 and foundthem to be OK. The 'shift solenoid valve S1' jams/sticks mechanically.Affected pins

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneTiptronic control module plug:• Pin '-'DIAGNOSIS/TROUBLESHOOTING G 0210WARNING: Danger of burns <strong>from</strong> hot ATF fluid!DIAGNOSIS/TROUBLESHOOTING PROCEDUREWork instruction Display OK If not OKIf the fault is corrected by replacing the oil pressure switch:--> EndIf the fault persists even after replacing the oil pressureswitch and the diagnostic conditions under point '1' weremet:1 Replace 'transmission oil pressure switch 2'Go to Step 2If the fault persists even after replacing the oil pressureswitch and the diagnostic conditions under point '2' weremet:Go to Step 32 Replace shift solenoid valve S1 --> EndReplace hydraulic control unit (hydraulic3 --> Endvalve for activating brake band 2 jams)FAULT CODE P0846Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!OIL PRESSURE SWITCH 2, TRANSMISSION [TRANSMISSION FLUID PRESSURESENSOR/SWITCH 'B' CIRCUIT RANGE/PERFORMANCE]NOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Use the 'Actual values' menu in the Porsche System Tester II No. 9588 to check the transmission status and theactual values of the shift solenoid valves and sensors.Diagnostic conditionsNOTE:The ATF fluid level in the transmission must be OK and the specified ATF fluid

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayennemust be used. The ATF filter and cooler must not be blocked.The following requirements are met for at least 0.5 seconds:• Voltage greater than 10.2 V and less than 15.5 V• Ignition on• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions, engine speed '> 400 rpm'• Temperature of ATF fluid >= 20°CThe fault types 'Open circuit/Short circuit to B+' are set after the following conditions occur 12 times:• Selector lever in position 'D', gear 1 engaged• Oil pressure switch 2 signal is 'OFF' for more than one second• Line pressure >= 6 barThe fault type 'Short circuit to ground' is set after the following conditions occur 12 times:• Selector lever position 'P, R, N'• Oil pressure switch 2 signal is 'ON' for more than one secondPossible causes of faultNOTE:The 'Diagnosis/troubleshooting' shown below is adapted to suit the fault typedisplayed in the tester (please note fault type numbering 1,2,... etc.!). The faultmemory Info key [F8] on the Porsche System Tester II No. 9588 can be used toread out the fault type in the 'extended fault memory'.• 1.) 'Open circuit/short circuit to B+': No signal <strong>from</strong> oil pressure switch 2• 2.) 'Short circuit to ground': Continuous signal <strong>from</strong> oil pressure switch 2Affected pinsTiptronic control module plug:• Pin 25 'transmission oil pressure switch 2', existing transmission wiring plug 'pin B8'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of transmission oil pressure switch 2

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneFig. 35: Wiring Diagram Of Transmission Oil Pressure Switch 2Courtesy of PORSCHE OF NORTH AMERICA, INC.• Max. power consumption: 10 mA at an operating voltage (VIG) of 16.5 VNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.WARNING: Danger of burns <strong>from</strong> hot ATF fluid!Skin or clothing may burn following contact with hot ATF fluid!• Always allow ATF fluid to cool before draining!• Wear suitable protective clothing!• Use a suitable collecting container!1. Troubleshooting only for fault type: 'Open circuit/short circuit to B+'TROUBLESHOOTING PROCEDURE FOR OPEN CIRCUIT/SHORT CIRCUIT TO B+DisplayWork instructionIf not OKOKCheck for short circuit to B+with 'Tiptronic control module'• Switch off ignition• Pull plug off Tiptronic controlmodule< 0.3 VRepair wiring harnessto Tiptronic control

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneplug disconnected and sensorplug connected (existing1 transmission wiring):Check for short circuit withboth 'Tiptronic control module'2 plug and sensor plugdisconnected (existingtransmission wiring):Check for open circuit withboth 'Tiptronic control module'3 plug and sensor plugdisconnected (existingtransmission wiring):Check wire in the transmission4for open circuit:5 Replace oil pressure switch 26 Replace Tiptronic control module• Switch on ignition• Measure voltage between 'pin25' and ground on Tiptroniccontrol module plug.• Switch off ignition• Measure resistance between'pin B8' and pins 'B1, B2, B3,B4, B5, B6, B7' on sensor plug(existing transmission wiring).• Measure resistance between'pin 25' of Tiptronic controlmodule plug and 'pin B8' ofsensor plug (existingtransmission wiring).(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Sensor plug (existingtransmission wiring) connected• Measure resistance between'pin 25' on Tiptronic controlmodule plug and oil pressureswitch 2 plug.2. Troubleshooting only for fault type: 'Short circuit to ground'Go toStep 2infinityohmsGo toStep 3< 5ohmsGo toStep 4< 5ohmsGo toStep 5module (existingtransmission wiring).--> EndRepair wiring harnessto Tiptronic controlmodule (existingtransmission wiring).--> EndRepair wiring harnessto Tiptronic controlmodule (existingtransmission wiring).--> EndTROUBLESHOOTING PROCEDURE FOR SHORT CIRCUIT TO GROUNDDisplayWork instructionIf not OKOKCheck for short circuit to• Switch off ignition• Pull plug off Tiptronic control infinityReplace wiring harnessin the transmission.--> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.--> EndIf the fault persists:Go to Step 6See note on replacing controlmodules!--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_Cayenneground with 'Tiptronic controlmodule' plug disconnected and1sensor plug connected(existing transmission wiring):Check for short circuit toground with both 'Tiptronic2 control module' plug andsensor plug disconnected(existing transmission wiring):Check for short circuit withboth 'Tiptronic control module'3 plug and sensor plugdisconnected (existingtransmission wiring):Check wire in the transmission4for short circuit to ground:5 Replace oil pressure switch 26 Replace Tiptronic control moduleFAULT CODE P1602BATTERY VOLTAGE, TERMINAL 30module• Measure resistance between'pin 25' and ground onTiptronic control module plug.• Disconnect sensor plug(existing transmission wiring)• Measure resistance between'pin 25' and ground onTiptronic control module plug.• Measure resistance between'pin B8' and pins 'B1, B2, B3,B4, B5, B6, B7' on sensor plug(existing transmission wiring).(Observe warning notes!) RemoveATF pan on the transmission (firstdrain fluid). Remove ATF filter,perform visual inspection of plug andwiring:• Pull off plug on oil pressureswitch 2.• Measure resistance betweendisconnected plug (wiring side)and ground (transmissionhousing).ohmsGo toStep 5infinityohmsGo toStep 3infinityohmsGo toStep 4infinityohmsGo toStep 5Go to Step 2Repair wiring harnessto Tiptronic controlmodule (existingtransmission wiring).--> EndRepair wiring harnessto Tiptronic controlmodule (existingtransmission wiring).--> EndReplace wiring harnessin the transmission.--> EndOnly replace if the wiring in thetransmission was checked forchafing damage and found to beOK.--> EndIf the fault persists:Go to Step 6See note on replacing controlmodules!--> EndNOTE:First check the fuse, If fault code '1045 Selector lever switch' is also stored inmemory, this indicates a faulty fuse or an open circuit in the wire for theTiptronic control module and selector lever switch. Affected fuse: fuse 29 infuse carrier at right of dashboard.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneDiagnostic conditionsThe following requirements are met for at least 0.5 seconds:• Ignition on, voltage greater than 10.2 V and less than 15.5 V• Internal Tiptronic control module function test was completed successfully• Engine runs without malfunctions• This fault is set if the measured battery voltage for terminal 30 < 6.6 V for one second', and if this occurs20 timesNOTE:The ignition must be switched off and then switched on again in order todisplay an error message in the instrument cluster.Possible causes of fault• 'Short circuit to ground', fuse faulty• 'Short circuit to ground', short circuit to ground or open circuit in wire• 'Short circuit to ground', battery/three-phase generator faulty• 'Short circuit to ground', Tiptronic control module faultyAffected pinsTiptronic control module plug:• Pin 3 'terminal 30', <strong>from</strong> fuse carrier at right of dashboard 'fuse 29'DIAGNOSIS/TROUBLESHOOTING G 0210Wiring diagram of power supply to terminal 30 of 'Tiptronic control module'Fig. 36: Wiring Diagram Of Power Supply To Terminal 30 Of Tiptronic Control ModuleCourtesy of PORSCHE OF NORTH AMERICA, INC.

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneNOTE:NOTE:Visual inspection: In the next troubleshooting section, please check first thatthe affected 'pins' on the Tiptronic control module plug connection and the'pins' on the 'existing transmission wiring' plug connection are neither damagednor corroded. Remove any soiling or corrosion/oxidation. Replace damagedparts/wires.Replacing control module: Before replacing the 'Tiptronic control module', theground connections, power supply and plug connections on the control modulemust be checked. Please observe the coding of the control module. After thetest drive, read out the fault memory again with the Porsche System Tester IINo. 9588. Additional causes of faults that could damage the 'Tiptronic controlmodule' should be detected and remedied.Before carrying out the work instruction, please check fuse '29', terminal 30 power supply for theTiptronic control module, in the fuse carrier at the right of the dashboard and replace it if necessary.After replacing the fuse, determine and remedy the cause of the fault in accordance with the workinstruction below!DIAGNOSIS/TROUBLESHOOTING PROCEDUREDisplayWork instructionOKCheck batteryvoltage/current andcharge1voltage/current onthree-phasegenerator:Check terminal 30power supply to2Tiptronic controlmodule:Check power supply3 line for short circuitto ground:• Engine speed > 2,000rpm.• Measure chargevoltage/current ofgenerator.• Ignition off• Pull plug off Tiptroniccontrol module• Measure voltagebetween 'pin 3' andground on Tiptroniccontrol module plug• Measure voltagebetween 'pin 3 andbattery positiveconnection' onTiptronic controlmodule plug.11.4 to14.5 VGo toStep 210.5 to14.5 VGo toStep 3< 0.3 VGo toStep 4If not OKCharge battery if necessary, replace iffaulty. Wiring/regulator or diodes faulty.Repair wires or generator. After carryingout repairs, erase the fault memory andthen read out the fault memory againwhile observing the diagnostic conditions.If no faults are stored in memory:--> EndIf the fault is still present:Go to Step 2Check fuse '29' in fuse carrier at right ofdashboard (resistance measurement).Check power supply line for short circuitto ground:Go to Step 4Short circuit to ground in Tiptroniccontrol module plug leads 'pin 3 and fuse29' in fuse carrier at right of dashboard.Repair lead(s) and replace faulty fuse.--> End

2006 Porsche Cayenne2003-08 TRANSMISSION Tiptronic - Diagnostics - 9pa_CayenneCheck voltage4 supply line for opencircuit:Check terminal 305 power supply atfuse:6 Replace Tiptronic control module• Measure resistance onTiptronic controlmodule plug between'pin 3 and fuse 29' infuse carrier at right ofdashboard.• Measure voltagebetween fuse plug '29and body ground' infuse carrier at right ofdashboard.< 0.5ohmsGo toStep 510.5 Vto 14.5VGo toStep 6Open circuit in wire to fuse carrier atright of dashboard.Repair wire(s). Check fuse.--> EndShort circuit/contact resistance/corrodedor loose connections near or in fusecarrier. Repair if possible, otherwisereplace fuse carrier at right of dashboard.--> EndSee note on replacing control modules!--> End

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