Eaton Ultrashift Troubleshooting Guide

Fuller ® T M 

AutoShift / UltraShift 

T M 

Transmissions 

RTO-1X910X-AS3 

RTLO-1X918X-AS3 

RTLO-1X913X-DM3 

RTLOM-1X913X-DM3 

RTO-1X910X-DM3 

RTOM-1X910X-DM3 

FO-X405X-DM3 

F-X405X-DM3 

FO-X406X-DM3 

F-X406X-DM3 

FO-X406X-AW3 

FO(M)-16D313E-LEP 

F(M)-1XD310B-LST 

Troubleshooting Guide TRTS0930 August 2006 

For the most current information, visit the Roadranger web site at www.roadranger.com

Warnings & Cautions 

Warnings & Cautions 

WARNING 

Follow the specified procedures in the indicated order to avoid personal injury 

Note: Additional relevant information not covered in the service procedure. 

Before starting a vehicle: 

• Sit in the driver's seat 

• Place shift lever in neutral 

• Set the parking brake 

Before working on a vehicle or leaving the cab with engine running: 



• Block the wheels 

When parking the vehicle or leaving the cab: 



CAUTION 

Follow the specified procedures in the indicated order to avoid equipment malfunction or damage. 

Do not release the parking brake or attempt to select a gear until the air pressure is at the correct level. 

To avoid damage to the transmission during towing: 


• Lift the drive wheels off of the ground or disconnect the driveline 

Do not operate the vehicle if alternator lamp is lit or if gauges indicate low voltage.

This page intentionally left blank.

Table of Contents 

Section 1: General Information 

Warnings & Cautions ...............................................1-0 

Suggested Tools ......................................................1-0 

Transmissions Models Included ..............................1-1 

Diagnostic Procedure ...............................................1-2 

Fault Code Retrieval/Clearing ...................................1-5 

Fault Code Isolation Procedure Index .......................1-7 

Symptom-Driven Diagnostics Index .........................1-9 

Product Diagnostic Mode (PDM) ...........................1-10 

Section 2: Fault Isolation Procedures 

Power-Up Sequence Overview .................................2-1 

Electrical Pretest Overview .....................................2-17 

Component Code: 11 (SID 254, FMI 12) 

No ECU Operation ...........................................2-23 


Improper ECU Configuration ...........................2-25 

Component Code: 13 (SID 231, FMI 12, 13) 

J-1939 Shift Control Device ............................2-27 

Component Code: 14 (SID 18, 19, FMI 2, 4, 5) 

Invalid Shift Lever Voltage ..............................2-31 


High Integrity Link (HIL) .................................2-39 

Component Code 17 (SID 237, FMI 3, 4) 

Start Enable Relay Coil ....................................2-47 


Clutch Slip ......................................................2-51 

Component Code 27 (SID 55, FMI 7) 

Clutch Disengagement ....................................2-53 

Component Code: 28 (SID 52,55 FMI 3, 4, 5, 7) 

Clutch System ................................................ 2-55 

Component Code 31(SID 218, FMI 2, 3, 4, 5) 

Momentary Engine Ignition Interrupt Relay 

(MEIIR) ........................................................... 2-61 

Code 32 (PID 43, FMI 2), Loss of Switch Ignition 

Power .............................................................. 2-67 

Component Code: 33 (PID 168, FMI 4) 

Low Battery Voltage Supply ............................ 2-73 

Component Code: 34 (PID 168, FMI 14) 

Weak Battery Voltage Supply .......................... 2-79 

System Code: 35 (SID 231, FMI 2) 

J-1939 Communication Link .......................... 2-85 

System Code: 36 

(SID 231, FMI 14) J-1939 Engine Message .... 2-93 


Power Supply ............................................... 2-101 

System Code: 41(SID 35, 36, FMI 7) 

Range Failed to Engage ................................ 2-109 

System Code: 42 (SID 37, 38, FMI 7) 

Splitter Failed to Engage ............................... 2-115 


Range Solenoid Valve ................................... 2-121 

Component Code: 44 (SID 54, FMI 3, 4, 5) 

Inertia Brake Solenoid Coil ........................... 2-127 


Inertia Brake Performance ............................ 2-131 


Splitter Solenoid Valve ................................. 2-133 

Component Code: 51 (PID 60, FMI 2, 3, 4) 

Rail Position Sensor ..................................... 2-139 

Component Code: 52 (PID 59, FMI 2, 3, 4) 

Gear Position Sensor .................................... 2-145 

Component Code: 56 (SID 161, FMI 2, 3, 4, 5, 10) 

Input Shaft Speed Sensor ............................. 2-151 

Component Code: 57 (PID 160, FMI 2, 3, 4, 5) 

Main Shaft Speed Sensor ............................. 2-155


Component Code: 58 (PID 191, FMI 2, 3, 4, 5) 

Output Shaft Speed Sensor ...........................2-159 


Rail Select Motor ..........................................2-163 


Gear Select Motor .........................................2-167 

System Code: 71(SID 60, FMI 7) 

Unable to Disengage Gear .............................2-171 


Failed to Select Rail .......................................2-179 


Failed to Engage Gear ...................................2-185 

System Code: 74 (PID 93, 190, FMI 7) 

Engine Failed to Respond ..............................2-191 

UltraShift DM3 Shift Complaint Overview .............. 3-69 

UltraShift AW3 Shift Complaint Overview .............. 3-85 

Shift Lever Back Light Overview ............................ 3-95 

Section 4: Appendix 

Connector Pin Descriptions ..................................... A-1 

UltraShift DM3 6-Speed Wiring Diagram with 

Analog Shifter ................................................... A-3 

UltraShift DM3 6-Speed Wiring Diagram with 

Push Button Shifter .......................................... A-5 

UltraShift AW3 6-Speed Wiring Diagram with 

Analog Shifter ................................................... A-7 


Power Down in Gear .....................................2-193 


Shift Lever Missing .......................................2-195 


Shift Control Device Not configured ..............2-197 

UltraShift AW3 6-Speed Wiring Diagram with 

Push Button Shifter .......................................... A-9 

AutoShift 10-Speed Wiring Diagram with 

Analog Shifter ................................................. A-11 


Push Button Shifter ........................................ A-13 



Shift Control Device Incompatible .................2-199 

Section 3: Symptpm Isolation Procedures 

Up/Down Button Test Overview ...............................3-1 

Start Enable Relay Contact Test Overview ................3-3 

J-1587 Data Link Test Overview .............................3-13 

Front Box Control Test Overview ............................3-21 

AutoShift Will Not Engage a Gear from Neutral 

Overview .........................................................3-29 

UltraShift DM3 Will Not Engage a Gear from 

Neutral Overview .............................................3-39 

UltraShift AW3 Clutch Engagement Overview ........3-51 

AutoShift AS3 Shift Complaint Overview ................3-55 

UltraShift 10-Speed Wiring Diagram with 












Eaton Shift Lever Wiring Diagram .......................... A-27 

OEM Shift Lever Wiring Diagram ........................... A-28 

Eaton Push Button Wiring Diagram ....................... A-29


OEM J-1939 Shift Input Device Wiring Diagram ....A-30 

Proper Clutch Operation .........................................A-31 

Adapter Test Kit #J-43318 .....................................A-33

General Information 

Suggested Tools 

Air Gauges 

• 2 (0-100) PSI Air Gauges 

Volt/Ohm Meter 

• SPX / Kent-Moore 1 (800) 328-6657 

• P/N 5505027 

Suggested Tools 

PC-based Service Tool “ServiceRanger” 

• Contact your OEM 

Shift Lever Tester 

• Eaton Service Parts 1 (800) 826-4357 

• P/N 691795 

Data Link Tester 

• Eaton Service Parts 1 (800) 826-4357 

• P/N K-3378 

Eaton Test Adapter Kit 

• SPX / Kent-Moore 1 (800) 328-6657 

• P/N J-43318 

6-Pin Deutsch Diagnostic Adapter 

• SPX / Kent-Moore 1 (800) 328-6657 

• P/N J-38500-60A 

9-Pin Deutsch Diagnostic Adapter 

• SPX / Kent-Moore 1 (800) 328-6657 

• P/N J-44012 

Service Publications 

TRSM-0930 

TRTS-0930 

TRDR-0930 

TRDR-0940 

Service Manual for External components 

Troubleshooting Guide 

Drivers Instructions for the AutoShift product 

Drivers Instructions for the UltraShift product 

For more information call 1-800-826-HELP (826-4357)


Transmissions Models Included 

RTO-1X910-AS3 

RTO(M)-1X910-DM3 

RTLO-1X918-AS3 

RTLO(M)-1X913-DM3 

F(0)-X406X-AW3 F(0)-X405X-DM3 or F(0)-X406X-DM3 

1-1


Diagnostic Procedure 

Step A Procedure Condition Action 

1. Key on. 

2. Observe gear display. 

Note: An "88" may 

show up in the dash at 

key on. This indicates the 

Transmission ECU has 

completed power-up. If 

the transmission and gear 

display power-up at the 

same time, you may not 

see an "88". 

If blank Gear Display Go to Step B. 


If "-" (Dash) on Gear 

Display 

If “--” (Two Dashes) or 

"**" (Two Stars) on Gear 

Display 

"#" (Gear Number) on 

Gear Display 

"F" (Fault Code) on Gear 

Display 

"N" (Neutral) on Gear 

Display 

Go to Step D. 

Go to Step D. 

a. Verify Shift Lever or Push 

Button is in Neutral. 

b. Turn key off and wait 2 

minutes. 

c. Hold clutch half way to the 

floor. (If equipped) 

d. Turn on key. 

e. If problem continues, call 

1-800-826-HELP (4357) 

Go to Step D. 

Go to Step B. 

1-2


Step B Procedure Condition Action 

1. Attempt to start engine. No engine crank, lever is in 

Neutral and Gear Display 

is "N" (Neutral) 

No engine crank, lever is in 

Neutral and Gear Display is 

blank 

No engine crank and lever 

is NOT in Neutral 

Engine cranks and Gear 

Display is blank 

Engine cranks and Gear 

Display is "N" (Neutral) 

Perform Start Enable Relay Contact 

Test. 

Perform Power-Up Sequence Test. 

If no problems found, refer to OEM 

for Gear Display problem. 




minutes. 




e. If problem continues, call 

1-800-826-HELP (4357) 

Refer to OEM for Gear Display 

problem. 

Go to Step C. 

Step C Procedure Condition Action 

1. Engage a gear Unable to engage gear 

(ie. flashing gear display 

with down arrows, or 

solid "N") 

Solid "#" (gear number) 

but no drive 

Perform AutoShift Will Not Engage 

a Gear from Neutral Test, 

UltraShift Will Not Engage a Gear 

from Neutral Test., or UltraShift 

AW3 Clutch Engagement Test 

depending on transmission type. 

Perform Front Box Control Test. 

Gear engaged and drives Go to Step E. 

1-3


Step D Procedure Condition Action 

1. Check for active codes. If codes are present Go to Fault Isolation Procedure 

Index. 

If no codes and Gear 

Display is "-" (Dash) 




minutes. 




e. If problem continues, 

Perform 


Front Box control Test. (see 

page 3-21). 

If no codes and Gear 

Display is “--” (Two 

Dashes) or "**" (Two 

Stars) 

Go to Power-Up Sequence Test. If 

no problem found refer to OEM for 

display problem. 

Step E Procedure Condition Action 

1. Record and clear inactive fault 

codes 

2. Drive vehicle 

and attempt 

to reset code. 

If no codes are present 

If inactive transmission 

component or system 

codes 

If active transmission 

component or system 

codes 

Test Complete. 

Record codes an call 1-800-826- 

HELP (4357). 

Go to Fault Isolation Procedure 

Index. 

1-4


Fault Code Retrieval/Clearing 

Retrieving Fault Codes 

Retrieve fault codes by enabling the system’s self-diagnostic mode. 

Note: You can also use a PC- based service tool, such as ServiceRanger to retrieve fault codes. 

1. Place the shift lever in neutral. 

2. Set the parking brake. 

3. Turn the ignition key on but do not start the engine. If the engine is already running, you may still retrieve codes, however, 

do not engage the starter if the engine stalls. 

4. To Retrieve Active Codes: Start with the key in the on position. Turn the key off and on two times within five seconds 

ending with the key in the on position. After five seconds, the service lamp begins flashing two-digit fault codes. If no 

faults are active, the service light will flash code 25 (no codes). This is also the procedure to enter Product Diagnostic 

Mode [see page 10]] for details. 

Note: An "88" may show up in the dash at key on, which is a normal power-up test of the display. 

2 times 

off 

on 

5. To Retrieve Inactive Codes: Start with the key in the on position. Turn the key off and on four times within five seconds 

ending with the key in the on position. After five seconds, the service lamp begins flashing two-digit fault codes. If no 

faults are active, the service light will flash code 25 (no codes). 

4 times 

off 

on 

6. Two digit fault codes will be displayed in the Gear Display. Some vehicle may be equipped with a service light. Observe 

the sequence of flashes on the service light and record the codes. A one to two second pause separates each stored 

code, and the sequence automatically repeats after all codes have been flashed. 

1 Flash 

3 Flashes 2 Flashes 

1 Flash 

SERVICE SERVICE SERVICE SERVICE 

SERVICE SERVICE 

Short 

pause 

(1/2 sec) 

Long Pause 

(3-4 sec) 

Short 

pause 

(1/2 sec) 

SERVICE 

Code 13 Code 21 

1-5


Clearing Fault Codes 

The following procedure clears all inactive fault codes from the ECU’s memory. Active fault codes are automatically cleared when 

the fault has been corrected. 

Note: You may use a PC-based Service Tool, such as ServiceRanger, to clear fault codes. 

1. Place the shift lever in neutral. 

2. Set the parking brake. 

3. Turn the ignition key on but do not start the engine. 

4. Start with the key in the on position. Turn the key off and on six times within five seconds ending with the key in the on 

position. 

Fault Code Retrieval/ 

Clearing 

6 times 

off 

on 

Note: If the codes have been successfully cleared, the service lamp will come on and stay on for five seconds. The gear display 

will show 25 (no codes). 

5. Turn the key off and allow the system to power down. 

1-6


Fault Code Isolation Procedure Index 

Fault Codes PID SID FMI Description Type of Code Page Number 

11 254 12 No ECU Operation Component 2-23 

12 254 13 Improper ECU Configuration Component 2-25 

13 231 13,12 J-1939 Shift Control Device System 2-27 

14 18,19 2, 4, 5 Invalid Shift Lever Voltage Component 2-31 

16 248 2 High Integrity Link (HIL) Component 2-39 

17 237 3, 4 Start Enable Relay Coil Component 2-47 

25 NO CODES 

26 55 10 Clutch Slip Component 2-51 

27 55 7 Clutch Disengagement Component 2-53 

28 52,55 3,4,5,7 Clutch System Component 2-55 

31 218 2,3,4,5,14 Momentary Engine Ignition Interrupt Relay 

(MEIIR) 

Component 2-61 

32 43 2 Loss of Switch Ignition Power Test Component 2-67 

33 168 4 Low Battery Voltage Supply Component 2-73 

34 168 14 Weak Battery Voltage Supply Component 2-79 

35 231 2 J-1939 Communication Link System 2-85 

36 231 14 J-1939 Engine Message System 2-93 

37 251 5 Power Supply Component 2-101 

41 35,36 7 Range Failed to Engage System 2-109 

42 37,38 7 Splitter Failed to Engage System 2-115 

43 35, 36 3, 4, 5 Range Solenoid Valve Component 2-121 

44 54 3, 4, 5 Inertia Brake Solenoid Coil Component 2-127 

45 54 7 Intertia Brake Performance System 2-131 

46 37, 38 3, 4, 5 Splitter Solenoid Valve Component 2-133 

51 60 2, 3, 4 Rail Position Sensor Component 2-139 

52 59 2, 3, 4 Gear Position Sensor Component 2-145 

56 161 2, 3, 4, 

5,10 

Input Shaft Speed Sensor Component 2-151 

57 160 2, 3, 4, 5 Main Shaft Speed Sensor Component 2-155 

58 191 2, 3, 4, 5 Output Shaft Speed Sensor Component 2-159 

1-7


Fault Codes PID SID FMI Description Type of Code Page Number 

61 39 5, 6 Rail Select Motor Component 2-163 

63 40 5, 6 Gear Select Motor Component 2-167 

71 60 7 Unable to Disengage Gear System 2-171 

72 59 7 Failed to Select Rail System 2-179 

73 58 7 Failed to Engage Gear System 2-185 

Fault Code Isolation 

Procedure Index 

74 93, 190 7 Engine Failed to Respond System 2-191 

75* 60 14 Power Down In Gear System 2-193 

83 18 14 Shift Lever Missing Component 2-195 

84 18 13 Shift Control Device Not configured Component 2-197 

85 18 12 Shift Control Device Incompatible Component 2-199 

* This code will only be set inactive 

1-8


Symptom-Driven Diagnostics Index 

Symptom Isolation Procedure Page Number 

Unable to Shift Transmission with Up/Down Button Up/Down Button Test 3- 1 

Engine Starting System Complaint Start Enable Relay Contact Test 3- 3 

No J1587 Communication J-1587 Data Link Test 3- 13 

Gear Display Shows a Dash Front Box Control Test 3- 21 

AutoShift Will Not Engage a Gear from Neutral AutoShift Will Not Engage a Gear from Neutral Test 3- 29 

UltraShift DM Will Not Engage a Gear from Neutral UltraShift DM Will Not Engage a Gear from Neutral Test 3- 39 

UltraShift AW3 Will Not Engage a Gear from Neutral UltraShift AW3 Clutch Engagement Test 3- 51 

AutoShift AS3 Shift Complaint AutoShift AS3 Shift Complaint Test 3- 55 

UltraShift DM Shift Complaint UltraShift DM Shift Complaint Test 3- 69 

UltraShift AW3 Shift Complaint UltraShift AW3 Shift Complaint Test 3- 85 

Shift Lever Back Light do not work Shift Lever Back Light Test 3- 95 

1-9


Product Diagnostic Mode (PDM) 

Product Diagnostic Mode (PDM) is used to help diagnose inactive codes that may have been set during normal driving. This diagnostic 

mode increases the sensitivity of the fault sensing capability 

This procedure tests loose, degraded, and intermittent connections. Use the active fault isolation procedure to guide you to the 

wiring and connectors that are associated with the inactive fault codes. Flex the wiring harness and connectors and attempt to 

recreate the fault after activating (PDM). 

PDM is only to be used by a trained service technician in an authorized dealer. 

Product Diagnostic Mode 

(PDM) 

This procedure is to be used prior to performing fault isolation procedures for component type codes when there are no active 

codes present. 

To enter PDM mode 

Note: Vehicle will not start in Product Diagnostic Mode (PDM). You must turn vehicle key "OFF" and allow the system 

to power down to exit PDM. 

1. Vehicle must be stationary, engine must not be running, vehicle parking brake must be set. 

2. Perform two key clicks of the ignition switch starting in the "ON" position and ending in the "ON" position 

Note: An "88" may show up in the dash at key on, which is a normal power-up test of the display. 

3. The gear display will flash a 25 then a solid "PD" (Product Diagnostic Mode) and the mode will be activated. 

4. The service light shall flash code 25 once indicating no codes. The service light shall then illuminate solid to indicate PDM 

until such time that an active code is detected or PDM is exited. 

5. Refer to PDM section in Fault isolation procedure for the inactive fault to be diagnosed. 

6. "PD" will remain in gear display until an active fault has been set during the PDM fault isolation procedure. 

7. If the fault is detected during PDM mode the gear display will display the active fault/s. The warning tone will only sound 

when the fault is active and the tone will stop when the fault is inactive. The fault will stay in the gear display until the 

system is powered down. 

Note: Active codes set during PDM mode will not be stored as inactive. 

8. If a fault is detected, exit PDM mode and perform the corresponding "Fault Isolation Procedure". 

9. To exit PDM mode, power the system down by turning the key to the "OFF" position. 

PDM will only work with the following inactive codes 

13, 14, 16, 17, 33, 34, 35, 36, 43, 44, 46, 51, 52, 56, 57, 58, 61, 63 

1-10

Fault Isolation Procedures 

Power-Up Sequence Overview 

Overview 

This test does not relate to any specific fault code, but 

must be completed if the self check fails at power up. 

Detection 

The Transmission ECU checks the program memory 

every time the key is turned on. 

Fallback 

This causes an In Place fallback while moving and a selfcheck 

failure if it occurs during power-up. 

Required Tools 

• Basic Hand Tools 

• Troubleshooting Guide 

Possible Causes 

This fault code can be caused by any of the following: 

• Vehicle Harness 

• Shift Control Device 

• Transmission ECU 

Side view 

of pushbutton 

shift control 

Transmission controller 

30-way connector 

Top view 

of pushbutton 

shift control 

VOLUME 

CONTROL 

SERVICE 

SHIFT 

Eaton Fuller 

Transmissions 

R 

N 

D 

H 

L 

Pushbutton Shift Control 

Eaton Shift Lever 

2-1


Power Up Sequence Test 


1. Key off. 

2. Inspect starter/battery and inline 

fuse holder connections for 

integrity. 

3. Measure voltage across 

batteries. 

VOLTS 

If voltage is 11 to 13 volts on 

a 12 volt system or 22 to 26 

on a 24 volt system 

If voltage is outside of range 

– 

+ 

Proceed with battery load test. 

Repair or replace batteries as 

required. Go to Step B. 

Repair or replace batteries and 

charging system as required. 

Repeat this step. 


V COM A 

– 

+ 

2-2


Power Up Sequence Test, continued 


1. Locate diagnostic port on 

Transmission Harness. 

2. Key on. 

3. Measure voltage 

between pins C 

and the battery negative post. 

If voltage between pin C and 

the battery negative post is 

.70 volts or less 


Go to Step C. 

Repair battery ground supply to 

Transmission ECU. Repeat test. 

For Transmission 

Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 

Battery Negative Post 

4-way 

B - Service Bat. + 

C - Service Bat. - 

A - Service Ignition + 

2-3






2. Key on. 

3. Measure 

voltage between pins B and 

pin C. 

If voltage between pins B and 

C is within .6 volts of battery 

voltage 

Go to Step D. 



Diagnostics 

B 

A 

VOLTS 

V COM A 

Repair battery power supply to 

Transmission ECU. Fuse may be 

blown. Repeat test. 


C 

D 

4-way 




2-4




1. Key on. 

2. Measure voltage between 

pin A and pin C. 

If voltage between pins A and 


voltage 


Go to Step E. 

Repair Ignition power supply to 

ECU. Fuse may be blown. Repeat 

test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 





1. Is vehicle equipped with 

an Shift Lever 

If vehicle is not equipped 

with a Shift Lever 

Go to Step F. 

If vehicle is equipped with a 

Shift Lever 

Go to Step K. 

2-5



Step F Procedure Condition Action 

1. Is it an Eaton Push 

Button or and OEM 

J-1939 Shift Device 

If an Eaton Push Button Shift 

Control 

If an OEM J-1939 Shift 

Device 

Go to Step G. 

Go to Step L. 

Step G Procedure Condition Action 

1. Key off. 

2. Observe service lamp. 

Note: If service lamp 

is flashing go 

to Diagnostics 

Procedure 

(page 2). 

If service lamp lights for one 

second and turns off 

Test complete. 


If service lamp never comes 

on. 

Go to Step H. 

If service lamp is on steady 

Replace Shift Control. Go to 

Step V. 

2-6



Step H Procedure Condition Action 

1. Key off. 

2. Disconnect Shift Control 30-way 

connector. 

3. Key on. 


Shift Control 30-way pins 

C1 and J3. 

If voltage is within 1 volt of 

battery voltage 

Replace Shift Control. Go 

Step V. 

to 

If voltage is outside of range Go to Step I. 

VOLTS 

V COM A 

K 

J 

H 

G 

F 

E 

D 

C 

B 

A 

3 2 1 

2-7



Step I Procedure Condition Action 

1. Key off. 

2. Disconnect negative battery 

cable. 

3. Disconnect 38-way Vehicle 

Harness from Transmission 

ECU. 

4. Measure resistance between 

Transmission ECU pin 25 and 

Shift Control connector pin J3 

and from then from pin J3 to 

ground. 

If resistance from pin 25 to 

J3 is 0 to .3 ohms and 

resistance from J3 to ground 

is 10K or OL 

Go to Step J. 


If resistance is outside of 

range 

Repair the OEM harness. Go to 

Step V. 

OHMS 

3 2 1 

K 

3 2 1 

V COM A 

J 

K 

J 

H 

G 

F 

Ground 

H 

G 

F 

E 

E 

D 

C 

B 

D 

C 

B 

A 

3 2 1 

OHMS 

A 

3 2 1 

Front View 

38-Way Connector 

V COM A 

37 

29 30 31 

23 24 25 

32 33 

26 27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-8



Step J Procedure Condition Action 

5. Measure resistance 

betweenTransmission ECU pin 31 

and Shift Control connector pin 

C1and then from pin C1 to 

ground. 

If resistance from pin 31 

to C1 is 0 to .3 ohms and 

resistance from C1 to 

ground is 10K or OL 


range 

Replace the Transmission ECU. 

Go to Step V. 


Step V. 

3 2 1 

K 

3 2 1 

J 

K 

J 

H 

G 

OHMS 

H 

G 

F 

F 

V COM A 

E 

E 

D 

C 

B 

Ground 

D 

C 

B 

A 

3 2 1 

OHMS 

A 

3 2 1 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 

26 27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Step K Procedure Condition Action 

1. Is vehicle equipped 

with an Eaton supplied Shift 

Lever or an OEM supplied Shift 

Lever. 

If Eaton Shift Lever Go to Step M. 

If OEM Shift Lever Go to Step S. 

2-9



Step L Procedure Condition Action 

1. Key off. 

Note: Data link test is designed to test a 

signal from an individual ECU. The 

ECU must be isolated from the rest 

of the Data link. 

2. Reconnect engine ECM connector and 

Transmission ECU 38-way connector. 

3. Disconnect the 3-way stub connector, 

which connects the Transmission ECU 

into the J-1939 Data Link. 

4. Connect the Data Link Tester to the 3- 

way stub connector, which connects 

the Transmission ECU into the J-1939 

Data Link. 

Note: If vehicle does not use 3-way 

stub connectors, then do not 

reconnect the engine ECM 

connector and connect the Data 

Link Tester across the +/- J-1939 

terminals (see diagram below). 

5. Place the Data Link Tester in 

communication test mode. 

J-1939 High 

J-1939 Low 

Data Link Tester (Top View) 

For transmission 

Diagnostics per 

SAE Standard 

F 

G 

C 

D 

B 

F 

G 

A 

E D 

C 

A B 

J 

H 

9-way 


CONTINUITY TEST 

SELF TEST 

OFF OFF 

COMMUNICATION 

TEST 

Part No. 691582 

Transmission ECU 


6. Key on. If LED is solid or flashing Problem exists with the OEM J- 

1939 Shift Device. Repair 

according to manufacturer’s 

recommendations. Go to Step 

V. 

If LED if off 

Replace Transmission ECU. Go 

to Step V. 

2-10



Step M Procedure Condition Action 

1. Key on. 

2. Observe service lamp. 

Note: If service lamp 

is flashing, go 

to Diagnostics 

Procedure 

(page 2). 

If service lamp lights for one 

second and turns off 

If service lamp never comes 

on 


Go to Step P. 

If service lamp is on steady Go to Step N. 

Step N Procedure Condition Action 

1. Disconnect Shift Lever 8-way 

connector. 

2. Key on. 

3. Measure voltage at pin 6 

and ground. 

If voltage is within 2 volts 

of battery voltage for one 

second, then 0 volts 

Replace the Eaton Shift Lever. 

Go to Step V. 

If voltage is constant Go to Step O. 

VOLTS 

V COM A 

1 

2 

3 

8 

7 

6 

Ground 

4 5 

2-11



Step O Procedure Condition Action 

1. Key off. 

2. Disconnect negative cable. 

3. Disconnect 38-way Vehicle 

Harness connector. 


between pin 6 and pin 4. 

If resistance between pin 6 

and 4 is 10K or greater 

If resistance is less than 10K 

OHMS 

V COM A 


Go to Step V. 


Step V. 


1 

8 

2 

7 

3 

6 

4 5 

Step P Procedure Condition Action 

1. Key off. 


connector. 

3. Key on. 


pin 3 and pin 6. 

If within 1 volt of battery 

Replace Eaton Shift Lever. Go 

to Step V. 

If voltage is outside of range Go to Step Q. 

VOLTS 

V COM A 

1 

8 

2 

7 

3 

6 

4 5 

2-12



Step Q Procedure Condition Action 

1. Key off. 

2. Disconnect 38-way Vehicle Harness 

connector on Transmission ECU. 

Note: On Peterbilt disconnect Gear 

Display 


between pin 3 on the 8-way 

connector and pin 25 on the 38-way 

connector and from pin 25 to 

ground. 


and 25 is 0 to .3 ohms and 

resistance from pin 25 to ground is 

10K ohms or greater 


range 

Go to Step R. 

Repair harness between Vehicle 

Harness 38-way connector pin 

25 and Vehicle Harness 8-way 

connector pin 3. Go to Step V. 

OHMS 

V COM A 

Ground 

37 

29 30 31 

23 24 25 

32 33 

26 

27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

1 

8 

2 

7 

3 

6 

4 5 

OHMS 

V COM A 

Front View 


37 

29 30 31 

23 24 25 

32 33 

26 

27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

Vehicle Harness 38-way Connector 

2-13



Step R Procedure Condition Action 

1. Key off. 

2. Measure resistance between: 

• Vehicle Harness 38-way 

connector pin 31 and 

Vehicle Harness 8-way 

connector pin 4 

If resistance between pins 31 

and 4 is 0 to .3 ohms and if 

resistance between pin 31 and 

ground is 10K ohms or greater 


to Step V. 



ground 

OHMS 

V COM A 

If any of the above 

conditions are not met 

Front View 







1 

2 

3 

4 

8 

7 

6 

5 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

38 

21 22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

Ground 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 


2-14



Step S Procedure Condition Action 

1. Key off. 

2. Locate service lamp connector on 

OEM harness. 

3. Key on. 


pins A and B on the service lamp 

connector 

If voltage is within 2 volts of 

battery voltage for one second, then 

0 volts 


If no voltage is measured Go to Step T. 


battery voltage continuously 

Go to Step U. 

Step T Procedure Condition Action 

1. Key off. 


cable. 

3. Disconnect 38-way connector 

4. Measure resistance from 

pin A of the OEM connector to pin 

23 of the 38-way and from pin 23 

to ground. 

If resistance from pin A to 23 

is 0 to .3 ohms and resistance to 

ground is 10K or greater 


range 


Go to Step V. 


Step V. 

Step U Procedure Condition Action 

1. Key off 


cable. 

3. Disconnect Transmission ECU 

38-way connector. 

4. Measure voltage across service 

lamp connector pins A and B. 

If no voltage is measured 




Go to Step V. 

Repair OEM harness as required. 

Go to Step V. 

2-15



Step V Procedure Condition Action 

1. Key off. 

2. Reconnect all connectors and the 

negative battery cable. 

3. Key on. If Power-Up Sequence Test 

completes 


If Power-Up Sequence Test 

fails 

Return to Step A to find error in 

testing. 


2-16


Electrical Pretest Overview 

Overview 

The test does not relate to any specific fault code, but must be 

completed before performing Fault Code Isolation Table procedures. 

The pretest verifies the batteries are fully charged. 

Detection 

There is no detection process specifically for the basic electrical 

supply. However, failures of this type are generally 

detected by the transmission or driver as some other type of 

fault code or symptom. 

Fallback 

There is no fallback for the electrical pretest, however, it may 

affect other systems. 



• Eaton Test Adapter Kit 

• Digital Volt/Ohm Meter 


• Battery Load Tester 


This pretest can be used for any of the following: 

• Low Batteries 

• Starter/Battery connections 

• Main power harness to the Transmission ECU 


Diagnostics 

B 

C 

A 

D 

– 

+ 

– 

+ 

4-way 




2-17


Electrical Pretest 


1. Key off. 


fuse holder connections for integrity. 


batteries. 





Repair or replace batteries as required. 

Go to Step B. 

VOLTS 


– 

+ 





V COM A 

– 

+ 

2-18


Electrical Pretest, continued 


1. Locate diagnostic port on Transmission 

Harness. 

2. Key on. 


pins C and the battery negative 

post. 





Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-19





Harness. 

2. Key on. 


pins B and pin C. 



voltage 

Go to Step D. 



Diagnostics 

VOLTS 





V COM A 

B 

C 

A 

D 

4-way 




2-20




1. Key on. 





voltage 


Test Complete. Return to Diagnostic 

Procedure. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




2-21




This page left blank intentionally. 

2-22


Component Code: 11 

(SID 254, FMI 12) 

No ECU Operation 

Overview 

This fault code indicates an internal failure of the Transmission 

ECU. 

Detection 

The Transmission ECU checks the program memory every 

time the key is turned on and throughout operation. If the 

Transmission ECU is able to detect a failure within its own 

memory, it sets this fault code. 

Fallback 



• ServiceRanger a PC-based Service Tool 


This fault code can be caused by the following: 


This fault causes a vehicle In Place fallback while moving and 

a self-check failure if it occurs during power-up. 


2-23


Code 11 (SID 254, FMI 12), No ECU Operation Test 


1. Key on. 

2. Retrieve Codes (see 

page 1-5). 

If code 11 is active 

If code 11 is inactive 

Replace Transmission ECU. 


Code 11 

(SID 254, FMI 12) 

2-24



(SID 254, FMI 13) 

Improper ECU Configuration 

Overview 

This fault code indicates the ECU is not reading valid information 

from memory, including the transmission table and calibration 

values. 

Detection 

The Transmission ECU checks the Configuration every time 

the key is turned on. If the transmission is not able to detect 

the proper Configuration, it sets this fault code. 

Fallback 






• Improper ECU Configuration Software 

This fault causes a power up no crank. 


2-25


Code 12 (SID 254, FMI 13), Improper ECU Configuration Test 


1. Key on. 

2. Retrieve codes (see 

page 1-5). 



Call Eaton at 1-800-826-HELP 

(4357). 


Code 12 

(SID 254, FMI 13) 

2-26



(SID 231, FMI 12, 13) 

J-1939 Shift Control Device 

Overview 

This fault indicates communication has been lost, or does not 

correspond with the neutral request input from the J-1939 

Shift Device. 

When troubleshooting an Inactive code See “Product Diagnostic 

Mode (PDM)” on page 10. 

Detection 

Starting at key on and throughout operation, the Transmission 

ECU constantly monitors communication with the J-1939 

Shift Device. If a neutral request from the J-1939 Shift Device 

does not match the neutral signal or is not received from the 

J-1939 Shift Device, fault code 13 is set. 









• OEM J-1939 Shift Control Device 


Fallback 

This fault causes a downshift only fallback. Once the transmission 

re-engages the start gear, there will be no upshifts as 

long as the code is active. 

OEM J-1939 Shift Device 

Transmission ECU Connector 

(Vehicle Interface) 

J1 

16 

17 

Bulkhead connector 

located at firewall 

J-1939 

Battery Power (Non-switched power 

run to Battery or Starter) 

Ground 

Switched Power 

2-27


Code 13 (SID 231, FMI 12, 13), J-1939 Shift Control Device Test 


1. Key off. 

2. Disconnect negative battery cable. 

3. Disconnect Vehicle Harness 38- 

way connector. 



pin 16 and corresponding 

OEM pin at J-1939 

Shift Device and pin 16 

and ground (see OEM 

wiring for correct pin location) 

If resistance is 0 to .3 ohms 

between pin 16 and the corresponding 

OEM pin and resistance 

to ground is 10K 

ohms or greater 

If resistance is out of range 

Go to Step B. 

Repair wiring between Transmission 

ECU and J-1939 Shift 

Device. Go to Step V. 

Code 13 

(SID 231, FMI 12, 13) 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

To OEM J-1939 

Shift Device Pin 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Ground 

2-28


Code 13 (SID 231, FMI 12, 13), J-1939 Shift Control Device Fault Test, continued 




pin 17 and corresponding 

OEM pin at J-1939 Shift 

Device and pin 17 and 

ground (see OEM wiring 

for correct pin location) 

If resistance is 0 to .3 ohms 

between pin 17 and the corresponding 

OEM pin and resistance 

to ground is 10K 


If resistance is out of range 

Problem exists with the J-1939 

Shift Device, or J-1939 Shift Device 

power, ground or datalink 

wiring. Contact your OEM for repair 

strategy. Go to Step V. 

Repair wiring between Transmission 

ECU and J-1939 Shift 

Device. Go to Step V. 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

To OEM J-1939 

Shift Device Pin 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Ground 

2-29


Code 13 (SID 231, FMI 12, 13), J-1939 Shift Control Device Fault Test, continued 


1. Key off. 



3. Key on. 

4. Clear codes (see page 1-5). 

5. Drive vehicle and attempt to reset 

the code. 

6. Check for codes (see 

page 1-5). 

If no codes 

If code 13 appears 



testing. 

Code 13 

(SID 231, FMI 12, 13) 

If code other than 13 appears 

Go to Fault Code Isolation Procedure 

Index (see page 1-7). 

2-30



(SID 18, 19, FMI 2, 4, 5) 

Invalid Shift Lever Voltage 

Overview 

This fault code indicates an electrical failure of the Eaton Shift 

Lever or OEM Shift Lever. 



Detection 

Starting at key-on and throughout operation, the Transmission 

ECU constantly measures the feedback from the Shift 

Lever circuit. If the feedback is out of range, the fault is set. 

This type of failure represents a short to battery, short to 

ground, or open circuit. 

Fallback 




• Shift Stalk Tester 






• Eaton Shift Lever or OEM Shift Lever 

• OEM Harness 


This fault may cause a downshift only fallback mode. Once the 

transmission re-engages the start gear, there will be no 

upshifts as long as the code is active. 



2-31


Code 14 (SID 18, 19 FMI 2, 4, 5), Invalid Shift Lever Voltage Test 


1. Is vehicle equipped with 

an Eaton supplied Shift Lever or 

an OEM supplied Shift Lever 

If Eaton Shift Lever Go to Step B. 

If OEM Shift Lever 

Contact OEM for troubleshooting 

procedures. 


1. Key off. 


connector. 

3. Connect Shift Lever tester to the 

8-way Shift Lever harness. 

Code 14 

(SID 18, 19 FMI 2, 4, 5) 

4. Connect ServiceRanger a PCbased 

Service Tool to diagnostic 

port. 

5. Key on. 

6. Select Monitor Data. 

7. Observe transmission 

range selected. 

If transmission range 

selected equals neutral 

If transmission range 

selected does not equal neutral 

Replace Shift Lever (Only if 

Fault Code is Active). Go to 

Step V. 

Go to Step C. 

2-32


Code 14 (SID 18, 19 FMI 2, 4, 5), Invalid Shift Lever Voltage Test, continued 


1. Key off. 


cable. 



4. Remove tester from Shift 

Lever 8-way connector. 


between: 

• ECU 38-way 

pin 15 and 

Shift Lever 8- 

way connector pin 1 

• ECU 38-way connector 

pin 15 and ground 



resistance between pin 15 

and ground is 10K ohms or 

greater 



Go to Step D. 

Repair Vehicle Harness between 

the Transmission ECU and the 

Shift Lever. Go to Step V. 

OHMS 

V COM A 

Front View 


1 8 

2 7 

3 6 

4 5 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

Ground 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-33




1. Key off. 


between: 

• ECU 38-way 

pin 16 and 

Shift Lever 8- 


• ECU 38-way connector pin 

16 and ground 

OHMS 

Front View 






greater 



Go to Step E. 


the Shift Lever and Transmission 

ECU. Go to Step V. 

Code 14 

(SID 18, 19 FMI 2, 4, 5) 

V COM A 

1 

8 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

2 7 

3 6 

4 5 

13 14 

35 

15 16 17 

18 19 20 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

21 

36 

22 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

Ground 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-34




1. Key off. 


between: 

• ECU 38-way pin 17 and 

Shift Lever 8-way connector 

pin 2 

• ECU 38-way connector pin 

17 and ground 





greater 



Go to Step F. 


Shift Lever and Transmission 


OHMS 

Front View 


V COM A 

1 

8 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

2 7 

3 6 

4 5 

13 14 

35 

15 16 17 

18 19 20 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

21 

36 

22 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

Ground 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-35




1. Key off. 


between: 

If resistance on all three is 


Replace Shift Lever. Go to Step 

V. 

• Transmission ECU 38-way 

connector pin 15 and 16 

and 15 and 17. Then 

measure resistance from 

pin 16 to 17. 

OHMS 

V COM A 

If any of the three readings is 

less than 10K ohms 

Front View 


OHMS 

V COM A 


Shift Lever and Transmission 


Code 14 

(SID 18, 19 FMI 2, 4, 5) 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

13 14 

15 

16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-36




1. Key off. 



3. Key on. 



the code. 


page 1-5). 

If no codes 



Return to Step A to find error 

in testing. 

If code other than 14 

appears 

Go to Fault Code Isolation 

Procedure Index (see page 1- 

7). 

2-37



Code 14 

(SID 18, 19 FMI 2, 4, 5) 


2-38



(SID 248, FMI 2) 

High Integrity Link (HIL) 

Overview 

This fault code indicates the Push Button Shift Control and the 

Transmission ECU are unable to communicate. 



Detection 


ECU constantly monitors the communication with the 

Push Button Shift Control. If a communication fault occurs for 

more than five seconds, fault code 16 is set. 

Fallback 

This fault causes a downshift only fallback while moving. 

Once the transmission re-engages the start gear, there will be 

no upshifts as long as the code is active. If the code is active 

during power-up a flashing “F” will appear on the gear display 

and the Transmission ECU will not engage a gear. 






• Data Link Tester 






• Push Button Shift Control 


28 

27 

25 

31 

HIL Data Link 

Vehicle bulkhead 

connector 

F1 

F2 

J3 

C1 

Shift control 


Shift Control ECU Legend 

All OEM responsible wiring shown is "typical". Consult specific application. 

(31) = +12 volt switched from TECU 

(28, 27) = Communication from and to the TECU 

(25) = Signal returns, grounds, and general OEM wiring 

2-39


Code 16 (SID 248, FMI 2), High Integrity Link (HIL) Test 



connector. 

2. Key on. 

3. Measure voltage on 

30-way connector pins 

J3 and C1 

If voltage is within .6 volts of 


Go to Step B. 

If out of range Go to Step C. 

OHMS 

Code 16 

(SID 248, FMI 2) 

V COM A 

3 2 1 

K 

J 

H 

G 

F 

E 

D 

C 

B 

A 

3 2 1 

2-40


Code 16 (SID 248, FMI 2), High Integrity Link (HIL) Test, continued 


1. Key off. 

2. Connect the data link tester 

across the Shift Control 30-way 

connector pins F1 and F2 

Note: Make sure the Data Link 

tester is connected as 

shown in the diagram below 

3. Key on. 

4. Place the data link tester 

in the Communication 

Test mode. 

If LED is solid or flashing Replace Push Button Shift Control 

(Only if Fault Code is Active) 

. Go to Step V. 

If LED is off Go to Step E. 

3 2 1 

K 

J 

H 

G 

F 

E 


D 

C 


SELF TEST 

OFF OFF 

COMMUNICATION 

TEST 

B 

A 

3 2 1 

Part No. 691582 


2-41




1. Key off. 



way conntector. 

Note: On Peterbilt disconnect 

Gear Display 


• Shift Control 30-way connector 

pin J3 and Vehicle 

Harness 38-way connector 

pin 25 

If resistance between pins J3 


resistance between pin J3 


greater 

Go to Step D. 

Code 16 

(SID 248, FMI 2) 


pin J3 and ground 

If any of the above conditions 

are not met 

Repair harness between the Shift 

Control and Transmission ECU. 

Go to Step V. 

OHMS 

3 2 1 

V COM A 

K 

K 

J 

H 

G 

F 

J 

H 

G 

F 

GROUND 

E 

E 

D 

C 

B 

A 

3 2 1 

OHMS 

V COM A 

D 

C 

B 

A 

3 2 1 


Front View 


37 

29 30 31 

23 24 25 

32 33 

26 

27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

2-42

V COM A 




1. Key off. 


• Shift Control 30- 

way connector pin 

C1 and Vehicle Harness 


pin 31 


pin C1 and ground 

If resistance between pins C1 


resistance between pin C1 


greater 


are not met 

Replace Transmission ECU 

(Only if Fault Code is Active). 

Repair harness between the 

Transmission ECU and Shift 

Control. Go to Step V. 

3 2 1 

K 

J 

H 

G 

F 

K 

J 

H 

G 

F 

OHMS 

E 

E 

V COM A 

D 

D 

C 

B 

A 

3 2 1 

OHMS 

C 

B 

A 

3 2 1 

GROUND 

Front View 



37 

29 30 31 

23 24 25 

32 33 

26 

27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

2-43




1. Key off. 







F1 and Vehicle Harness 


pin 28 



F1 and ground 

If resistance between pins F1 

and 28 is 0 to .3 ohms and if resistance 

between pin F1 and ground is 


Go to Step F. 

Code 16 

(SID 248, FMI 2) 


are not met 


Shift Control and Transmission 


3 2 1 

OHMS 

K 

K 

J 

J 

H 

G 

F 

H 

G 

F 

V COM A 

GROUND 

E 

D 

C 

B 

E 

D 

C 

B 

A 

3 2 1 

OHMS 

A 

3 2 1 

Front View 


V COM A 


37 

29 30 31 

23 24 25 

32 33 

26 27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

2-44




1. Key off. 


between: 

• Shift Control 30-way 

connector pin F2 and 

Vehicle Harness 38- 


27 

• Shift Control 30-way 

connector pin F2 and 

ground 

If resistance between pins 

F2 and 27 is 0 to .3 ohms 

and resistance between 

pin F2 and ground is 10K 



are not met 



Go to Step V. 


Shift Control and Transmission 


3 2 1 

OHMS 

K 

K 

J 

J 

H 

H 

V COM A 

G 

G 

F 

F 

GROUND 

E 

E 

D 

D 

C 

C 

B 

B 

A 

3 2 1 

OHMS 

A 

3 2 1 

Front View 


V COM A 


37 

29 30 31 

23 24 25 

32 33 

26 

27 

34 

28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

2-45




1. Key off. 

2. Reconnect all connectors and 


3. Key on. 


5. Drive the vehicle and attempt 

to reset the code. 


page 1-5). 

If no codes 




in testing. 

Code 16 

(SID 248, FMI 2) 



Procedure Index (see 

page 1-5). 

2-46


Component Code 17 

(SID 237, FMI 3, 4) 

Start Enable Relay Coil 

Overview 

This fault code indicates an electrical failure of the relay that 

allows the engine to start after start-up conditions are met. 

When troubleshooting an inactive code See “Product Diagnostic 


Detection 


ECU constantly measures the circuit. A failure mode of 

short to battery, short to ground, or open circuit is detected. 

Fallback 

The start enable relay has no fallback, however, if the failure 

occurred before the engine was started, it is possible the 

engine will not start. 









• Start Enable Relay 



26 


32 

4 

Run to 

starter solenoid 

Trans ECU Legend 


(30, 87) = Switched ignition 

(26-87) = Latch into the ECU 

(4-85) = -12 volt relay source 

(32-86) = +12 volt relay source 

30 

87 

86 

85 

Run to start 

signal from 

ignition switch 

Start 

enable relay 

2-47


Code 17 (SID 237, FMI 3, 4) , Start Enable Relay Coil Test 


1. Key off. 

Note: The Start Enable Relay must 

be wired according to Eaton 

GEN III requirements (shown 

on previous page) for this 

test to work properly. If wired 

differently, consult OEM for 

correct wiring schematic. 


3. Disconnect Vehicle Harness 38-way 

connector. 


between Vehicle Harness 38-way 

connector pins 32 and 4 and 

measure resistance between 

Vehicle Harness 38-way connector 

pin 32 and ground. 

If resistance between 32 and 

4 is 40 to 120 ohms (12 volt 

system) or 140 to 480 ohms 

(24 volt system) and resistance 

between 32 and ground is 10K ohms 

or greater 



Go to Step V. 

Code 17 

(SID 237, FMI 3, 4) 


range 

Go to Step B. 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Ground 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-48


Code 17 (SID 237, FMI 3, 4), Start Enable Relay Coil Test, continued 


1. Remove Start Enable Relay from 

vehicle dash harness. 


between Start Enable Relay pins 

85 and 86. 

If resistance is 40 to 120 

ohms (12 volt system) or 

140 to 480 ohms (24 volt 

system) 


range 

Repair OEM wiring from 

Transmission ECU to Start 

Enable Relay. Go to Step V. 

Replace Start Enable Relay. 

Go to Step V. 

87 

OHMS 

86 

87a 

85 

V COM A 

30 


1. Key off. 



3. Key on. 



to reset the code. 


page 1-5). 

If no codes 


If code other than 17 

appears 



in testing. 


Procedure Index (see page 1- 

7). 

2-49


Code 17 (SID 237, FMI 3, 4), Start Enable Relay Coil Test, continued 

Code 17 

(SID 237, FMI 3, 4) 


2-50



(SID 55, FMI 10) 

Clutch Slip 

Overview 

This fault code indicates the clutch is not performing as 

expected. The Transmission ECU detected excessive clutch 

slip. 

Detection 

When the transmission is in gear and the clutch is fully 

engaged, engine speed and input shaft speed are compared. If 

the engine speed is significantly different from the input shaft 

speed for a period of one second, the fault code is set. 

Fallback 




• Clutch Jack 




• Worn or Damaged Clutch 

This fault causes a downshift only fallback. Once the vehicle is 

stopped, starting gear and reverse gear can be engaged. However, 

the fault will clear at power down and upshifts will be 

allowed until the fault is detected again. 

Driven Disc 

Clutch Assembly 

Driven Disc and 

Intermediate Plate 

2-51


Code 26 (SID 55, FMI 10), Clutch Slip Test 


1. Key on. 

2. Start engine 

3. Drive vehicle under 

load in highest 

gear possible with engine speed 

above 1500 rpm. At a steady 

speed, quickly and fully press and 

hold the throttle. 


If code 26 is not active 

Replace Clutch 


Code 26 

(SID 55, FMI 10) 

2-52



(SID 55, FMI 7) 

Clutch Disengagement 

Overview 

This fault code indicates the clutch has not disengaged as 

expected. 

Detection 


ECU constantly measures engine rpm and idle torque 

from the engine. 

When engaging a start gear, if the engine speed falls significantly 

below idle or engine torque rises significantly above 

idle torque the fault is set. 

If in gear and the vehicle is brought to a stop and engine 

speed falls significantly below idle, the fault is set. 

Fallback 



• Clutch Jack 





• Worn or Damaged Clutch 

There is no fallback associated with this failure, however, it 

may be difficult to achieve gear engagement or disengagement. 

Driven Disc 

Clutch Assembly 

Driven Disc and 

Intermediate Plate 

2-53


Code 27 (SID 55, FMI 7), Clutch Disengagement Test 


1. Key on. 

2. Start engine. 

3. Compare engine 

rpm to input shaft 

rpm with ServiceRanger a PCbased 

Service Tool. 

If the speeds match at idle 

and code 27 is active 

Replace the Clutch. 

Note: Engine idle rpm must be 

700rpm or lower. 

If they do not match 


Code 27 

(SID 55, FMI 7) 

2-54



(SID 52,55 FMI 3, 4, 5, 7) 

Clutch System 

Overview 

This fault code indicates either an electrical or mechanical failure 

in the WetClutch system. 

Detection 


ECU constantly monitors this circuit. A failure mode of 


When the WetClutch is locked after urge to move, engine 

speed and input shaft speeds are compared. If the engine 

speed is significantly higher than the input shaft speed for a 

period of five seconds, the WetClutch is slipping. 

Fallback 

There is no fallback mode. However, if the failure mode is 

open circuit, the engine will be disengaged from the input 

shaft. 










• Transmission Harness 

• Low Fluid Level 

• WetClutch System 

Transmission Harness 


WetClutch System 

WetClutch Fluid 

2-55


Code 28 (SID 52,55 FMI 3, 4, 5, 7), Clutch System Test 


1. Key on. 

2. Place the transmission in neutral. 

3. Allow engine to idle at 700 to 800 

RPM for a minimum of two minutes. 

Note: Ensure transmission fluid 

temperature is 60 to 120 

degrees F (16 to 49 degrees 

C). 

4. Check WetClutch fluid 

level. 

If fluid level is at or above the 

COLD-FULL mark 

If fluid level is below the 

COLD-ADD mark 

Go to Step B. 

Correct fluid level. Go to Step V. 

Code 28 

(SID 52, FMI 3,4,5,7) 

2-56


Code 28 (SID 52, FMI 3,4,5,7) Clutch System Fault Test, continued 


1. Key off. 

2. Disconnect the negative battery 

cable. 

3. Disconnect the Transmission 

ECU 30-way connector. 


between the Transmission 

Harness 38- 

way connector pins 2 and 3 

and 2 to ground. 

If the resistance between 2 

and 3 is 6.5 to 9.5 ohms and 

is resistance from pin 2 to 

ground is 10K ohms or 

greater 


range 

Go to Step C. 

Go to Step D. 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

Ground 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

Transmission Harness 38-way Connector 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-57





the Transmission 


pins 13 and 14 and 13 

to ground. 

If resistance between 13 and 

14 is 8.5 to 12 ohms and resistance 

from pin 13 to 

ground is 10K ohms or 

greater 

Replace Transmission (Only if 

Fault Code is Active). Go to 

Step V. 


ohms 

OHMS 

V COM A 

Go to Step D. 

Code 28 

(SID 52, FMI 3,4,5,7) 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

Ground 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-58




1. Disconnect Transmission 

Harness located on left side of 

WetClutch housing. 


WetClutch housing connector 

pins: 

• 3 and 4 

• 1 and 2 

If the resistance between 

pins 1 and 2 is 8.5 to 12 ohms and 

the resistance between 3 and 4 is 6.5 

to 9.5 ohms 


range 

Go to Step E. 

Replace Transmission. Go to 

Step V. 

OHMS 

OHMS 

V COM A 

V COM A 

4 1 4 1 

3 2 

3 2 

2-59





WetClutch housing connector 

pins: 

• 3 and ground 

• 1 and ground 

If resistance from pin 3 to 

ground and pin 1 to ground 

is 10K ohms or greater 

Replace Transmission Harness. 

Go to Step V. 

OHMS 

V COM A 


ohms 

OHMS 

V COM A 

Replace Transmission. Go to 

Step V. 

Code 28 

(SID 52, FMI 3,4,5,7) 

4 1 4 1 

3 2 

3 2 

GROUND 

GROUND 


1. Key off. 

2. Reconnect all connectors. 

3. Key on. 

4. Clear codes (see page 1-5) 

5. Drive the vehicle and attempt to 

reset the code. 


page 1-5) 

If no codes 




testing. 



Index (see page 1-7) 

2-60



(SID 218, FMI 2, 3, 4, 5) 

Momentary Engine Ignition Interrupt Relay (MEIIR) 

Overview 

This fault code indicates an electrical failure of the MEIIR circuit. 

Detection 

The fault is detected during power-up. The Transmission ECU 

checks the MEIIR circuit every time the system is powered up. 

If the electrical characteristics of the circuit are incorrect, the 

fault code is set. 

Fallback 

There is no fallback associated with this failure. However, if 

the engine speed flares uncontrollably while the transmission 

is in a gear, the transmission may not be able to achieve neutral 

if it is selected due to a torque lock condition. 









• OEM wiring 

• Mechanical failure in the MEIIR relay 




22 

21 

20 

Engine Power Relay 

Fused 10 AMP 12 volt 

manual resetting 

circuit breaker 

or 

10 AMP 

fuse 

30 

86 

85 

87 

87a 

Ignition 

Interrupt 

Relay 

Run to 

Ignition 

Engine ECM 

Ignition Interrupt Legend 


(30, 87a) = +12 volt switched 

(20-87) 

= Signal 



2-61


Code 31(SID 218, FMI 2, 3, 4, 5), Momentary Engine Ignition Interrupt Relay (MEIIR) 

Test 


1. Key off. 



Vehicle Harness 38-way connector. 


Vehicle Harness 

38-way connector pins 

21 and 22 and from pin 

21 to ground. 


and 22 is 40 to 120 ohms (12 

volt system) or 140 to 480 

ohms (24 volt system) and 

resistance from pin 21 to ground is 



range 

Go to Step B. 

Go to Step D. 

Code 31 

(SID 218, FMI 2, 3, 4, 5) 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Ground 

2-62





Transmission Vehicle 

Harness 38-way 


MEIIR relay connector 

pin 87 and from MEIIR 

relay connector pin 87 to 

ground. 





greater 

If resistance is outside of the 

range 

Go to Step C. 

Repair OEM harness between 

the Transmission ECU and the 

MEIIR relay connector. Go to 

Step V. 

OHMS 

30 

86 87a 85 

87 

V COM A 

Front View 

Relay connector 

OHMS 

Ground 

30 

V COM A 

86 87a 85 

Front View 


87 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-63




1. Disconnect MEIIR relay from 

connector. 

2. Key on. 

3. Measure voltage from 

pin 30 of the MEIIR relay 

connector to ground. 



Replace MEIIR relay. Go to Step 

E. 


VOLTS 

Repair OEM harness. Go to Step 

V. 

Code 31 

(SID 218, FMI 2, 3, 4, 5) 

V COM A 

Ground 

30 

86 87a 85 

87 

Front View 


2-64




1. Remove MEIIR relay from OEM 

dash harness. 


MEIIR relay pins 

85 and 86. 

If resistance is 40 to 120 

ohms (12 volt system) or 

140 to 480 ohms (24 volt 

system) 


range 

Repair OEM wiring from the 

Transmission ECU to the MEIIR 

relay. Go to Step V. 

Replace MEIIR relay. Go to Step 

V. 

OHMS 

V COM A 

30 

86 87a 85 

87 

Front View 



1. Key on. 

2. Retrieve codes. If code 31 is inactive Go to Step V. 



to Step V. 

2-65




1. Key off. 


negative battery cable if removed. 

3. Key on. 





page 1-5). 

If no codes 





testing. 



Code 31 

(SID 218, FMI 2, 3, 4, 5) 

2-66



(PID 43, FMI 2) 

Loss of Switched Ignition Power 

Overview 

This fault code indicates a loss of Switched Ignition Power to 

the Transmission ECU. 



Detection 

The Transmission ECU monitors Ignition Power during normal 

operation. If Ignition power is lost to the Transmission 

ECU during operation a fault is logged. 

Fallback 







• Ignition Switch is turned off during operation 

• Ignition Power is lost during operation 

This fault causes an In Place fallback while moving. 


35 

10 AMP 12 volt only 

Manual resetting 


Or 

10 AMP 

fuse 

Ignition power (switched power) 

run to main power lead that 

feeds the ignition bus 

2-67


Code 32 (PID 43, FMI 2), Loss of Switched Ignition Power Test 


1. Key off. 




batteries. 






Go to Step B. 

VOLTS 


– 

+ 




Code 32 

(PID 43, FMI 2) 

V COM A 

– 

+ 

2-68


Code 32 (PID 43, FMI 2), Loss of Switched Ignition Power, continued 



Harness. 

2. Key on. 



post. 





Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-69





Harness. 

2. Key on. 





voltage 

Go to Step D. 



Diagnostics 

VOLTS 




Code 32 

(PID 43, FMI 2) 

V COM A 

B 

C 

A 

D 

4-way 




2-70




1. Key on. 





voltage 


Go to Step V. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 






codes. 


page 1-5). 


This code indicates a loss of ignition 

switched power to the 

Transmission ECU during operation. 

Verify the key was not 

turned off during operation. Inspect 

ignition circuit for intermittent 

open. 

2-71



Code 32 

(PID 43, FMI 2) 

2-72



(PID 168, FMI 4) 

Low Battery Voltage Supply 

Overview 

This fault code indicates that the vehicle battery power supply 

to the Transmission ECU is below 7 volts. 



Detection 


ECU constantly measures vehicle voltage. If voltage is 

below 7 volts for more than one second, fault code 33 will be 

set, and the service light will flash. 

Fallback 

If this fault occures while moving, it causes a 1-speed fallback. 

Once the vehicle is stopped, the starting gear and 

reverse can be engaged 









• Corroded or loose power supply to Transmission 

ECU 


• Damaged OEM Harness 


• Charging system 

Vehicle 

Charging 

System 

Batteries 

– 

+ 

– 

+ 

2-73


Code 33 (PID 168, FMI 4), Low Battery Voltage Supply Test 


1. Key off. 




batteries. 






Go to Step B. 

VOLTS 


– 

+ 




Code 33 

(PID 168, FMI 4) 

V COM A 

– 

+ 

2-74


Code 33 (PID 168, FMI 4), Low Battery Voltage Supply Test, continued 



Harness. 

2. Key on. 



post. 


battery negative post is .70 

volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-75





Harness. 

2. Key on. 





voltage 

Go to Step D. 



Diagnostics 

VOLTS 




Code 33 

(PID 168, FMI 4) 

V COM A 

B 

C 

A 

D 

4-way 




2-76




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 





1. Key on. 


page 1-5). 

If code 33 is active Replace Transmission ECU 

(only if Fault Code is active). 

Go to Step V. 

If code 33 is inactive Clear codes. Go to Step V. 

2-77




1. Key off. 

2. Key on. 




5. Driving Vehicle and attempt to reset 

the code 


page 1-5). 

If no codes 





testing. 



Code 33 

(PID 168, FMI 4) 

2-78



(PID 168, FMI 14) 

Weak Battery Voltage Supply 

Overview 

This fault indicates the vehicle is supplying weak battery voltage 

to the transmission for ten seconds. 



Detection 


ECU constantly measures vehicle voltage. If voltage is 

below 9 volts for more than ten seconds, fault code 34 will be 

set. The service light will not flash. 

Fallback 

If this fault occures while moving, it causes a 1-speed fallback. 

Once the vehicle is stopped, the starting gear and 

reverse can be engaged 









• Corroded or loose power supply to Transmission 

ECU 


• Damaged OEM Harness 


• Charging system 

Vehicle 

Charging 

System 

Batteries 

– 

+ 

– 

+ 

2-79


Code 34 (PID 168, FMI 14), Weak Battery Voltage Supply Test 


1. Key off. 




batteries. 

VOLTS 





– 

+ 



Go to Step B. 




Code 34 

(PID 168, FMI 14) 

V COM A 

– 

+ 

2-80


Code 34 (PID 168, FMI 14), Weak Battery Voltage Supply Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-81





Harness. 

2. Key on. 





voltage 

Go to Step D. 



Diagnostics 

VOLTS 




Code 34 

(PID 168, FMI 14) 

V COM A 

B 

C 

A 

D 

4-way 




2-82




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 





1. Key on. 


page 1-5). 

If code 34 is active Replace Transmission ECU 

(only if Fault Code is active). 

Go to Step V. 

If code 34 is inactive Clear codes. Go to Step V. 

2-83




1. Key off. 

2. Key on. 





the code 


page 1-5). 

If no codes 





testing. 



Code 34 

(PID 168, FMI 14) 

2-84



(SID 231, FMI 2) 

J-1939 Communication Link 

Overview 

This fault code indicates the Transmission ECU failed to communicate 

with the engine over the J-1939 data link. 

If you have an active fault code 35 with an UltraShift DM 

transmission and the engine will crank but not start, please 

check the OEM supplied MEIIR (Momentary Engine Ignition 

Interrupt Relay) circuit and see that the engine has proper 

ignition voltage. 



Detection 

75 seconds after key-on and throughout the operation, the 

Transmission ECU constantly monitors the communication 

with the engine ECM. If a communication fault occurs for 

more than five seconds, and no other devices are present, 

fault code 35 is set. 

Fallback 









This fault can be caused by any of the following: 

• J-1939 Data Link 

• Engine ECM 

• Vehicle Harness or Connections 

• Engine Harness or Connections 

• Excessive Radio Interference 


If the fault occurs during power up the transmission will go 

into AutoSelect mode. If the fault occurs while moving, it 

causes an in place fallback and the transmission will remain in 

whatever gear the failure occurred. Once the vehicle stops, 

start and reverse gears can be selected and the transmission 

will operate in AutoSelect mode. 


Engine ECM 


+J-1939 

A 

C 

B 

–J-1939 

Shield 

Typical J-1939/11 data link harness 

(OEM supplied) 

2-85


Code 35 (SID 231, FMI 2), J-1939 Communication Link Test 


1. Key off. 




4. Disconnect engine ECM connector 

which contains the J-1939 

Data Link. 



connector pin 2 and engine 

ECM pin # (see OEM wiring 

for (-) J-1939) 


and engine ECM pin # (see 

OEM wiring for (-)J-1939) is 

0 to .3 ohms and if resistance 

between pin 2 and ground is 


Go to Step B. 

Code 35 

(SID 231, FMI 2) 




range 

Repair J-1939 Data Link Harness 

between engine ECM and Transmission 


Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

V COM A 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

See OEM J-1939 Wiring 

for correct pin on ECM 

OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 


GROUND 

2-86


Code 35 (SID 231, FMI 2), J-1939 Communication Link Test, continued 


1. Key off. 


between: 



ECM pin # (see 

OEM J-1939 wiring for 

(+)J-1939) 





OEM J-1939 wiring for (+)J- 

1939) is 0 to .3 ohms and if 




range 

If equipped with J-1939 Lite, 

go to Step D. 

If not equipped with J-1939 

Lite, go to Step C. 


between engine ECM and 

Transmission ECU. Go to 

Step V. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

See OEM J-1939 W 

for correct pin on 

OHMS 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

V COM A 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 


GROUND 

2-87




1. Key off. 


• Vehicle Harness 38- 


and engine ECM pin 

# (see OEM J-1939 

wiring for J-1939 

shield). 



OEM J-1939 wiring for J- 

1939 shield) is 0 to .3 ohms 


range 

Go to Step D. (if working on a 

Mack engine, go to Step E.) 




Code 35 

(SID 231, FMI 2) 

Front View 


OHMS 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

V COM A 


35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 



2-88




1. Key off. 


between 


connector pin 2 and 3. 

Note: Make sure the volt/ohm 

meter is on the proper 

scale (around 200 ohm 

scale) 


and 3 is between 50 to 70 ohms 

If resistance is more than 70 

ohms 

If resistance is less than 50 

ohms 

Go to Step E. 

One or more of the terminating 

resistors on the J-1939 data link 

harness is either missing or out 

of range. Repair OEM J-1939 

Data Link Harness. Go to Step 

V. 

Repair the J-1939 Data Link between 

the engine ECM and the 

Transmission ECU. Go to Step 

V. 

Front View 


OHMS 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

V 

COM 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-89




1. Key off. 

Note: Data link test is designed to 

test a signal from an individual 

ECU. The ECU must be isolated 

from the rest of the Data link. 

2. Reconnect engine ECM connector 

and Transmission ECU 38- 



which connects the 

Transmission ECU into the J- 

1939 Data Link. 

4. Connect the Data Link Tester to 

the 3-way stub connector, which 

connects the Transmission ECU 

into the J-1939 Data Link. 



SAE Standard 

F 

E 

A 

D 

C 

B 


Code 35 

(SID 231, FMI 2) 

Note: If vehicle does not use 3- 

way stub connectors, then 

do not reconnect the engine 

ECM connector and 

connect the Data Link 

Tester across the +/- J- 

1939 terminals (see diagram). 

J-1939 High 

J-1939 Low 


G 

C 

D 

B 

F 

G 

A 

J 

H 

9-way 



SELF TEST 

OFF OFF 

COMMUNICATION 

TEST 

Part No. 691582 

5. Place the Data Link Tester in communication 

test mode. 

6. Key on. If LED is solid or flashing Problem exists with the engine 

ECM. Repair according to manufacturer’s 

recommendations. Go 

to Step V. 

If LED if off 


to Step V. 

2-90




1. Key off. 

2. Key on. 





the code 


page 1-5). 

If no codes 





testing. 



2-91



Code 35 

(SID 231, FMI 2) 


2-92



(SID 231, FMI 14) 

J-1939 Engine Message 

Overview 

This fault code indicates the Transmission ECU has communicated 

with another ECU, but is unable to communicate with 

the engine ECU over the J-1939 data link. 

If you have an active fault code 36 with an UltraShift DM 

transmission and the engine will crank but not start, please 

check the OEM supplied MEIIR (Momentary Engine Ignition 

Interrupt Relay) circuit and see that the engine has proper 

ignition voltage. 



Detection 

The fault is detected if J-1939 communication from the engine 

is lost for 5 seconds and other devices are present on J-1939. 

Fallback 









This fault can be caused by any of the following: 

• J-1939 Data Link 

• Engine ECM 

• Vehicle Harness or Connections 

• Engine Harness or Connections 

• Excessive Radio Interference 


If the fault occurs during power up the transmission will go 

into AutoSelect mode. If the fault occurs while moving, it 

causes an inplace fallback and the transmission will remain in 

whatever gear the failure occurred. Once the vehicle stops, 

start and reverse gears can be selected and the transmission 

will operate in AutoSelect mode. 


+J-1939 

–J-1939 

Engine ECM 


A 

C 

B 

Shield 

Typical J-1939/11 data link harness 


2-93


Code 36 (SID 231, FMI 14), J-1939 Engine Message Test 


1. Key off. 




4. Disconnect engine ECM connector 

which contains the J-1939 

Data Link. 




ECM pin # (see OEM wiring 

for (-)J-1939) 



OEM wiring for (-)J-1939) is 


between pin 2 and ground is 


Go to Step B. 

Code 36 

(SID 231, FMI 14) 


connector pin 2 and ground 


range 




Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

V COM A 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 



OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

GROUND 

2-94


Code 36 (SID 231, FMI 14), J-1939 Engine Message Test, continued 


1. Key off. 




pin 3 and engine 

ECM pin # 

(see OEM wiring 

for (+)J-1939) 



pin 3 and 

ground 



OEM wiring for (+)J-1939) is 


between pin 3 and ground is 10K 



range 

If equipped with J-1939 Lite, 

go to Step D. 

If not equipped with J-1939 

Lite, go to Step C. 


between Engine ECM 

and Transmission ECU. Go to 

Step V. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

See OEM J-1939 Wirin 


OHMS 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

V COM A 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 


GROUND 

2-95




1. Key off. 



connector pin 1 and engine ECM 

pin # (see OEM wiring for J-1939 

shield). 


and engine ECM pin # (see OEM wiring 

for J-1939 shield) is 0 to .3 ohms 

Go to Step D. 

(if working on a Mack engine, go 

to Step E.) 


range 




Code 36 

(SID 231, FMI 14) 

Front View 


OHMS 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

V COM A 


35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 



2-96




1. Key off. 



38-way connector pin 2 

and 3. 


and 3 is between 50 to 70 

ohms 

Go to Step E. 

Note: Make sure the volt/ 

ohm meter is on 

the proper scale 

(around 200 ohm 

scale) 

If resistance is more than 70 

ohms 

If resistance is less than 50 

ohms 

One or more of the terminating 

resistors on the J-1939 data link 

harness is either missing or out 

of range. Repair J-1939 Data 

Link Harness. Go to Step V. 

Repair the J-1939 Data Link between 

the Engine ECM and the 

Transmission ECU. Go to Step 

V. 

Front View 


OHMS 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

V COM A 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-97




1. Key off. 

Note: Data link test is designed to 

test a signal from an individual 

ECU. The ECU must be isolated 

from the rest of the Data link. 

2. Reconnect engine ECM connector 

and Transmission ECU 38- 



which connects the transmission 

into the J-1939 Data 

Link. 

4. Connect the Data Link Tester to 

the 3-way stub connector, which 

connects the transmission into 

the J-1939 Data Link. 

Note: If vehicle does not use 3- 

way stub connectors, then 

do not reconnect the engine 

ECM connector and 

connect the Data Link 

Tester across the +/- J- 

1939 terminals (see diagram). 

5. Place the Data Link Tester in communication 

test mode. 

J-1939 High 

J-1939 Low 




SAE Standard 

F 

G 

C 

D 

B 

F 

G 

A 

E 

A 

D 

C 

B 

J 

H 

9-way 



SELF TEST 

OFF OFF 

COMMUNICATION 

TEST 

Part No. 691582 


Code 36 

(SID 231, FMI 14) 

6. Key on. If LED is solid or flashing Problem exists with the engine 

ECM. Repair according to manufacturer’s 

recommendations. Go 

to Step V. 

If LED if off 


to Step V. 

2-98




1. Key off. 



3. Key on. 



the code. 


page 1-5). 

If no codes 





testing. 



2-99



Code 36 

(SID 231, FMI 14) 


2-100



(SID 251, FMI 5) 

Power Supply 

Overview 

This fault code indicates an excessive resistance has been 

detected between the power supply source (battery or starter) 

and the Transmission ECU. 

Detection 

The resistance on the Transmission ECU power supply circuit 

is measured during each shift. If the resistance is greater that 

.4 ohms this fault will set. 

Fallback 

No fallback mode. 







• Corrosion on power or ground supply connections/ 

wires to the Transmission ECU 

• Corrosion in fuse holder for Transmission ECU 

power supply. 


30 AMP fuse 

Battery power 

(non-switched power) 

run to starter 

or batteries 

2-101


Code 37 (SID 251, FMI 5), Power Supply Test 


1. Key off. 




batteries. 






Go to Step B. 

VOLTS 


– 

+ 




Code 37 

(SID 251, FMI 5) 

V COM A 

– 

+ 

2-102


Code 37 (SID 251, FMI 5), Power Supply Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-103





Harness. 

2. Key on. 





voltage 

Go to Step D. 



Diagnostics 

VOLTS 




Code 37 

(SID 251, FMI 5) 

V COM A 

B 

C 

A 

D 

4-way 




2-104




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




2-105




1. Key off. 


3. Disconnect the Vehicle Harness 

38-way. 

4. Inspect main power 38- 

way connector terminals 

pin 36 and 38, inline 

fuse holder, and 

power supply connections 

for integrity and 

corrosion. 

If no problem found Go to Step V. 

If problem is found 

Repair power/ground path for 

the main power supply. Go to 

Step V. 

Code 37 

(SID 251, FMI 5) 


Batteries 

– 

+ 

30 AMP fuse 

– 

+ 


37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Front View 


2-106




1. Key off. 

2. Clean and reconnect all connectors. 

3. Key on. 



the code 


page 1-5). 

If no codes 





testing. 



2-107



Code 37 

(SID 251, FMI 5) 


2-108



(SID 35, 36, FMI 7) 

Range Failed to Engage 

Overview 

This fault code indicates the transmission is unable to complete 

a shift across the range. The range is either stuck in 

HIGH or LOW, or cannot complete engagement into HIGH or 

LOW. 

Detection 

The transmission attempts the same range shift five consecutive 

times and determines the shift cannot be completed 

based on the speeds across the back box. 

Fallback 

This fault causes a current range fallback and the transmission 

stays in either LOW range or HIGH range. When the vehicle 

comes to a stop, an attempt to shift into LOW range is 

made. 



• (2) 0-100 PSI Air Pressure Gauges 





• Low Air Pressure 

• Contaminated Air Supply 

• Air Leak 

• Range Solenoid Valve 

• Range Synchronizer 

• Range Actuator / Cylinder / Piston / Yoke 

• Range Cover 

Range system 

2-109


Code 41 (SID 35, 36, FMI 7), Range Failed to Engage Test 


1. Key off. 

2. Install a 0-100 PSI air pressure 

gauge in the regulated test port of 

the air filter / regulator. 

3. Start engine and allow air pressure 

to build to governor cut-off. 

4. Monitor the vehicle air 

pressure gauge on the 

dash. 

If air pressure cuts off at 90 

to 120 PSI 

If air pressure is outside of 

range 

Go to Step B. 

Repair vehicle air system as required. 


Code 41 

(SID 35, 36, FMI 7) 

0-100 PSI 

Regulated test port 


1. Key off. 



dash. 

If vehicle maintains air pressure 

If vehicle looses air pressure 

Go to Step C. 



2-110


Code 41(SID 35, 36, FMI 7), Range Failed to Engage Test, continued 


1. Read air pressure 

gauge installed at the regulated 

port. 

If air pressure is 55 to 65 PSI. Go to Step E. 


range. 

Go to Step D. 


1. Remove air supply line to 

the air filter /regulator 

and check airflow. 

If air flows from the supply 

line 

If air does not flow from the 

supply line 

Repair Air Filter / Regulator. 

Go to Step C. 

Repair vehicle air supply to the 

regulator. Go to Step C. 

2-111




1. Key off. 

2. Install (2) 0-100 PSI air pressure 

gauges into the range cover diagnostic 

ports. 

3. Start vehicle and allow air pressure 


4. Release clutch to register input 

shaft speed in the transmission. 

5. Turn off engine, but leave key in 

“ON” position. 

6. With Shift Control, select 

reverse, then select neutral. 

If LOW range gauge = 55 to 

65 PSI and if HIGH range 

gauge = 0 PSI 

Note: Five minutes is allowed 

for checking the air 

pressure after shifting 

the transmission to 

neutral. 

Go to Step F. 

Code 41 

(SID 35, 36, FMI 7) 

If air pressure gauges do not 

read as shown above 

Replace Range Solenoid Valve 

and Range Cylinder Cover as 

required. Go to Step V. 

HIGH range 

0-100 PSI gauge 

LOW range 


2-112




1. Key on. 


the highest reverse gear available 

by pressing the upshift button/arrow, 

then select neutral. 

If HIGH range gauge = 

55 to 65 PSI and if LOW 

range gauge = 0 PSI 



Repair mechanical range system 

as required. Go to Step V. 




HIGH range 


LOW range 


2-113




1. Key off. 

2. Remove all gauges. 

3. Key on. 


5. Drive Vehicle and attempt to reset 

the code 


page 1-5). 

If no codes 




testing. 

Code 41 

(SID 35, 36, FMI 7) 



Index(see page 1-7). 

2-114



(SID 37, 38, FMI 7) 

Splitter Failed to Engage 

Overview 

This fault code indicates the transmission is unable to complete 

a shift across the Splitter. The Splitter is either stuck in 

HIGH or LOW, or cannot complete engagement into HIGH or 

LOW. 

Detection 

The transmission attempts the same splitter shift 3 consecutive 

times and determines the shift cannot be completed 

based on the speeds across the back box. 

Fallback 

This fault causes a current splitter fallback and the transmission 

stays in either LOW split or HIGH split. 



• (2) 0-100 PSI Air Pressure Gauges 





• Low Air Pressure 

• Contaminated Air Supply 

• Air Leak 

• Splitter Solenoid Valve 

• Splitter Actuator / Cylinder / Piston / Yoke 

• Splitter Clutch 

Splitter system 

2-115


Code 42 (SID 37, 38, FMI 7), Splitter Failed to Engage Test 


1. Key off. 







pressure gauge on the dash. 


to 120 PSI 


range 

Go to Step B. 



Code 42 

(SID 37, 38,FMI 7) 

0-100 PSI 



1. Key off. 




If vehicle looses air pressure 

Go to Step C. 



2-116


Code 42 (SID 37, 38,FMI 7), Splitter Failed to Engage Test, continued 



gauge installed at the regulated 

port. 

If air pressure is 55 to 65 PSI. Go to Step E. 


range. 

Go to Step D. 






line 


supply line 


Go to Step C. 


regulator. Go to Step C. 

2-117




1. Key off. 



3. Release clutch to register input 

shaft speed in the transmission. 




reverse (R1 in gear display 

for 13/18-speed), 


If LOW Splitter gauge =55 to 

65 PSI and if HIGH Splitter 

gauge = 0 PSI 


for checking the pressure 

after shifting the 

transmissions to neutral. 

Go to Step F. 

Code 42 

(SID 37, 38,FMI 7) 



Replace Splitter Solenoid Valve 

and Splitter Cylinder Cover as 


LO split 


HI split 


2-118




1. Key on. 


reverse (R2 in the gear 

display 13/18-speed). 

Note: If R2 isn’t displayed the up 

arrow button needs to be 

pressed. 

If HIGH Splitter gauge = 55 to 

65 PSI and if LOW Splitter 

gauge = 0 PSI 



Repair Mechanical Splitter system 

as required. Go to Step V. 




LO split 


HI split 


2-119




1. Key off. 

2. Remove all pressure gauges. 

3. Key on. 


5. Drive Vehicle and attempt to reset 

the code 


page 1-5). 

If no codes 





testing. 



Code 42 

(SID 37, 38,FMI 7) 

2-120



(SID 35, 36, FMI 3, 4, 5) 

Range Solenoid Valve 

Overview 

This fault code indicates an electrical failure of the solenoids 

that control the Range Solenoid Valve. 



Detection 


ECU constantly measures this circuit. A failure mode of 


Fallback 

This fault causes a current range fallback and the transmission 

stays in either LOW range or HIGH range. When the vehicle 

comes to a stop, an attempt to shift into LOW range is 

made. 












Range valve 


Transmission harness 

2-121


Code 43 (SID 35, 36, FMI 3, 4, 5), Range Solenoid Valve Test 


1. Key off. 


cable. 




the Transmission Harness 38- 

way connector pins: 

• 28 and 6 

• 34 and 6 

Note: Observe polarity on 

Volt\Ohm Meter. 

If resistance is 9 to 16 ohms Go to Step B. 


range 

Go to Step C. 

Code 43 

(SID 35, 36, FMI 3, 4, 5) 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-122


Code 43 (SID 35, 36, FMI 3, 4, 5), Range Solenoid Valve Test, continued 






If resistance is 10K ohms or 

greater 


ohms 



Go to Step V. 

Go to Step C. 

Front View 


37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

OHMS 

13 14 

15 16 

17 

18 19 

20 

21 

22 

V COM A 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

GROUND 

2-123





Harness from Range Solenoid 

Valve. 


between Range Solenoid 

Valve pins: 

• A and C 

• B and C 

If resistance is 9 to 16 ohms Go to Step D. 


range 

C B A OHMS 

C B A 

OHMS 

Replace Range Solenoid Valve. 

Go to Step V. 

Code 43 

(SID 35, 36, FMI 3, 4, 5) 

V COM A 

V COM A 



Range Solenoid 

Valve pin C and ground. 


greater 


ohms 

Replace Transmission 

Harness. Go to Step V. 

Replace Range Solenoid 

Valve. Go to Step V. 

C 

B 

A 

OHMS 

V COM A 

GROUND 

2-124




1. Key off. 



3. Key on. 



the code 


page 1-5). 

If no codes 




testing. 




2-125



Code 43 

(SID 35, 36, FMI 3, 4, 5) 


2-126



(SID 54, FMI 3, 4, 5) 

Inertia Brake Solenoid Coil 

Overview 

This fault code indicates an electrical failure of the solenoid 

that controls the Inertia Brake. 



Detection 


ECU constantly measures this circuit. A failure mode of a 


Fallback 

No Fallback Mode. However, if it is the Inertia Brake system 

that failed, it may be difficult to engage a gear from a stop if 

the Inertia Brake was providing assistance (due to a dragging 

clutch). Also, hill shifting performance may be reduced. 









• Inertia Brake Solenoid 



Transmission 

controller 

Transmission 

harness 

Inertia brake 

solenoid coil 

2-127


Code 44 (SID 54, FMI 3, 4, 5), Inertia Brake Solenoid Coil Test 


1. Key off. 


cable. 


Harness 38-way connector. 



Harness 38- 

way connector pins 

33 and 5. 



range 

Go to Step C. 

Code 44 

(SID 54, FMI 3, 4, 5) 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-128


Code 44 (SID 54, FMI 3, 4, 5), Inertia Brake Solenoid Coil Test, continued 







greater 


ohms 



Go to Step V. 

Go to Step C. 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Groun 



Harness from Inertia Brake coil. 


Inertia Brake coil 

pins A and B. 



range 

Replace Inertia Brake. Go to 

Step V. 

OHMS 

A 

B 

V COM A 

2-129


Code 44 (SID 54, FMI 3, 4, 5), Inertia Brake Solenoid Coil Test, continued 



Inertia Brake coil 

pin A and ground. 


greater 


Go to Step V. 


ohms 


Step V. 


OHMS 

A B 

V COM A 

GROUND 

Code 44 

(SID 54, FMI 3, 4, 5) 

1. Key off. 



3. Key on. 





page 1-5). 

If no codes 




testing. 




2-130



(SID 54, FMI 7) 

Inertia Brake Performance 

Overview 

This fault code indicates the transmission is unable to use 

system controls to synchronize during a shift. 

Detection 

If the Inertia Brake is unable to synchronize the transmission 

during an upshift, this code will be set. 

Fallback 


• ServiceRanger a PC based service tool. 




• Inertia Brake 

No Fallback Mode. However, if it is the Inertia Brake system 

that failed, it may be difficult to engage a gear from a stop if 

the Inertia Brake was providing assistance (due to a dragging 

clutch). Also, hill shifting performance may be reduced. 

Engine 

ECM 

Engine control system 

A 

Inertia brake 

B 

2-131


Code 45 (SID 54, FMI 7), Inertia Brake Performance Test 


1. Key on. 

2. Connect ServiceRanger, select 

“Advanced Product Functions”. 

3. Start Engine, PTO must be disengaged. 

4. Select “Inertia Brake Test” 

5. Run test and follow instructions. 

Test passes Go to Step V. 

Test Fails 

Test Aborts 


Step V. 

Correct displayed test failure 

condition and retest. 

Code 45 

(SID 54, FMI 7) 


1. Key on. 





page 1-5). 

If no codes 




testing. 




2-132



(SID 37, 38, FMI 3, 4, 5) 

Splitter Solenoid Valve 

Overview 

This fault code indicates an electrical failure of the solenoids 

that control the Splitter Solenoid Valve. 



Detection 


ECU constantly measures this circuit. Depending on the 

reading, a failure mode of short to battery, short to ground, or 

open circuit is detected. 

Fallback 












This fault causes a current splitter fallback and the transmission 

stays in either LOW split or HIGH split. 



Splitter valve 

2-133


Code 46 (SID 37, 38, FMI 3, 4, 5), Splitter Solenoid ValveTest 


1. Key off. 


cable. 





Harness 38- 

way connector pins: 

• 32 and 4 

• 26 and 4 



range 

Go to Step C. 

Code 46 

(SID 37, 38, FMI 3, 4, 5) 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-134


Code 46 (SID 37, 38, FMI 3, 4, 5), Splitter Solenoid ValveTest, continued 







greater 


ohms 



Go to Step V. 

Go to Step C. 

Front View 


37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

OHMS 

13 14 

15 16 

17 

18 19 

20 

21 

22 

V COM A 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


GROUND 

2-135





Harness from Splitter Solenoid 

Valve. 


Splitter Solenoid 

Valve pins: 

• A and C 

• B and C 



range 

C B A OHMS 

C B A 

OHMS 

Replace Splitter Solenoid 


Code 46 

(SID 37, 38, FMI 3, 4, 5) 

V COM A 

V COM A 



Splitter Solenoid 

Valve pin C and ground. 


greater 

Har- 


ness. Go to Step V. 


ohms 

Replace Splitter Solenoid 


OHMS 

C 

B 

A 

V COM A 

GROUND 

2-136




1. Key off. 



3. Key on. 



reset the code 


page 1-5). 

If no codes 




testing. 




2-137



Code 46 

(SID 37, 38, FMI 3, 4, 5) 


2-138



(PID 60, FMI 2, 3, 4) 

Rail Position Sensor 

Overview 

This fault code indicates an electrical failure of the Rail Select 

Sensor on the Electric Shifter. 



Detection 


ECU constantly monitors the feedback from the sensor. If 

the feedback is below 10% or above 90% of the sensor’s full 

value, the fault code is set. This type of failure represents a 

short to ground or battery. The Transmission ECU also monitors 

the sensor feedback for a zero value, indicating an open 

circuit. 

Fallback 










• Rail Position Sensor 


This fault causes an In Place fallback. 

Rail select sensor 



2-139


Code 51 (PID 60, FMI 2, 3, 4) , Rail Position Sensor Test 


1. Key off. 







pins: 

• 18 and 19 

• 18 and 20 

Note: An Auto Ranging Digital 


must be used. 

If pin 18 and 19 resistance is 

100 to 200 ohms and if pin 

18 and 20 resistance is 5K to 

7K ohms 

Go to Step B. 

Code 51 

(PID 60, FMI 2, 3, 4) 


are not met 

Go to Step C. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-140


Code 51 (PID 60, FMI 2, 3, 4), Rail Position Sensor Test, continued 





pin 18 to ground. 


greater 


ohms 

Replace transmission ECU 


Go to Step V. 

Go to Step C. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

GROUND 

2-141




1. Disconnect Transmission Harness 

from Rail Select Sensor. 


Rail Select Sensor 

pins: 

• A and C 

If pin A and C resistance is 

5K to 7K and if pin A and B 

resistance is 100 to 200 

ohms 

Go to Step D. 

• A and B 



must be used. 

If any to the above conditions 

are not met 

Replace Electric Shifter. Go to 

Step V. 

Code 51 

(PID 60, FMI 2, 3, 4) 

OHMS 

OHMS 

V COM A 

V COM A 

C 

B 

A 

C 

B 

A 



Rail Select Sensor 



greater 


ohms 


Go to Step V. 


Step V. 

OHMS 

V COM A 

C 

B 

A 

Ground 

2-142




1. Key off. 



3. Key on. 





page 1-5). 

If no codes 




testing. 




2-143



Code 51 

(PID 60, FMI 2, 3, 4) 


2-144



(PID 59, FMI 2, 3, 4) 

Gear Position Sensor 

Overview 

This fault code indicates an electrical failure of the Gear Select 

Sensor on the Electric Shifter. 



Detection 


ECU constantly monitors the feedback from the sensor. If 

the feedback is below 10% or above 90% of the sensor’s full 

value, the fault code is set. This type of failure represents a 

short to ground or battery. The Transmission ECU also monitors 

the sensor feedback for a zero value, indicating an open 

circuit. 

Fallback 










• Gear Select Sensor 



Gear select sensor 



2-145


Code 52 (PID 59, FMI 2, 3, 4), Gear Position Sensor Test 


1. Key off. 


cable. 






pins: 

• 10 and 11 

• 10 and 12 


Volt/Ohm Meter must be 

used. 

If pin 10 and 11 resistance is 

100 to 200 ohms and if pin 

10 and 12 resistance is 5K to 

7K ohms 

Go to Step B. 

Code 52 

(PID 59, FMI 2, 3, 4) 


are not met 

Go to Step C. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-146


Code 52 (PID 59, FMI 2, 3, 4), Gear Position Sensor Test, continued 





pin 10 to ground. 


greater 


ohms 



Go to Step V. 

Go to Step C. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

GROUND 

2-147





form gear select sensor. 


gear select sensor 

pins: 

• A and C 

If pin A and C resistance is 

5K to 7K and if pin A and B 

resistance is 100 to 200 

ohms 

Go to Step D. 

• A and B 



must be used. 


are not met 


Step V. 

Code 52 

(PID 59, FMI 2, 3, 4) 

OHMS 

OHMS 

V COM A 

V COM A 

C 

B 

A 

C 

B 

A 



gear select sensor 



greater 


ohms 


Go to Step V. 


Step V. 

OHMS 

V COM A 

C 

B 

A 

Ground 

2-148




1. Key off. 



3. Key on. 


5. Drive the vehicle and to attempt 

to reset the code 


page 1-5). 

If no codes 





testing. 



2-149



Code 52 

(PID 59, FMI 2, 3, 4) 


2-150



(SID 161, FMI 2, 3, 4, 5, 10) 

Input Shaft Speed Sensor 

Overview 

This fault code indicates an electrical problem in the Input 

Shaft Speed Sensor circuit. The signal from the sensor did not 

match the current operating conditions. 



Detection 

A speed sensor is determined faulty when all the speed sensor 

readings are compared and one sensor is inconsistent, or the 

sensor is shorted to power or ground. 

Fallback 

This fault causes an In Place fallback. If the Input Shaft Speed 

Sensor fails before power-up, the transmission is unable to 

engage a gear. 










• Input Shaft Speed Sensor 

• Various Transmission Components 


Input shaft 

speed sensor 

Transmission 

controller 

Transmission 

harness 

2-151


Code 56 (PID 161, FMI 2, 3, 4, 5, 10), Input Shaft Speed Sensor Test 


1. Drive vehicle and monitor 

engine rpm and input 

shaft rpm with Service- 

Ranger. 

If engine rpm and input shaft 

rpm match and code is not 

active during test drive 

If input shaft rpm is erratic or 

varies from engine rpm 

Test Complete. 

Go to Step B. 


1. Key off. 


cable. 



Code 56 

(PID 161, FMI 2, 3, 4, 5, 

10) 



Harness 38- 

way connector pins 7 

and 8 and pin 7 and ground. 

If resistance is 2K to 4.5K 

ohms and pin 7 to ground is 



range 

Go to Step C. 

Go to Step D. 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

Ground 

2-152


Code 56 (PID 161, FMI 2, 3, 4, 5, 10), Input Shaft Speed Sensor Test, continued 


1. Inspect Input Shaft 

Speed Sensor for contamination 

or damage. 

If no problem found Replace Transmission ECU 


Go to Step V. 

If problem if found or you 

were sent here from Step D 

or E 

Replace Input Shaft Speed 

Sensor and inspect the upper 

countershaft PTO gear for 

damage. Go to Step V. 



Harness from Input Shaft Speed 

Sensor. 


Input Shaft Speed 

Sensor pins A and B. 


ohms 


range 

Go to Step E. 

Go to Step C. 

OHMS 

A 

B 

V COM A 




Sensor pin A and ground. 


greater 

Har- 




ohms 

Go to Step C. 

OHMS 

A 

B 

V COM A 

GROUND 

2-153


Code 56 (PID 161, FMI 2, 3, 4, 5, 10), Input Shaft Speed Sensor Test, continued 


1. Key off. 



3. Verify proper installation of speed 

sensor. 

4. Key on. 





page 1-5). 

If no codes 




testing. 

Code 56 

(PID 161, FMI 2, 3, 4, 5, 

10) 




2-154



(PID 160, FMI 2, 3, 4, 5) 

Main Shaft Speed Sensor 

Overview 

This fault code indicates an electrical problem in the Main 


match the current operating conditions 



Detection 




Fallback 

This fault causes an In Place fallback mode. 










• Main Shaft Speed Sensor 




Main shaft 

speed sensor 


2-155


Code 57 (PID 160, FMI 2, 3, 4, 5), Main Shaft Speed Sensor Test 


1. Key off. 


cable. 





Harness 38- 

way connector pins 

15 and 16 and 15 and ground. 





range 

Go to Step B. 

Go to Step C. 

Code 57 

(PID 160, FMI 2, 3, 4, 5) 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

Grou 

13 14 

15 

16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-156


Code 57 (PID 160, FMI 2, 3, 4, 5), Main Shaft Speed Sensor Test, continued 


1. Inspect Mainshaft Speed 

Sensor for contamination 

or damage. 

If no problem found 

If problem is found or you 

were sent here from Step C 

or D 



Go to Step V. 

Replace MainShaft Speed 


reverse idler gear for damage. 

Go to Step V. 



Harness from the Main Shaft 

Speed Sensor. 


the Main Shaft 

Speed Sensor pins A and 

B. 


ohms 


range 

Go to Step D. 

Go to Step B. 

OHMS 

A 

B 

V COM A 



Main Shaft Speed 



greater 


ohms 


Go to Step V. 

Go to Step B. 

OHMS 

A 

B 

V COM A 

GROUND 

2-157


Code 57 (PID 160, FMI 2, 3, 4, 5), Main Shaft Speed Sensor Test, continued 


1. Key off. 




sensor. 

4. Key on. 





page 1-5). 

If no codes 




testing. 

Code 57 

(PID 160, FMI 2, 3, 4, 5) 




2-158



(PID 191, FMI 2, 3, 4, 5) 

Output Shaft Speed Sensor 

Overview 

This fault code indicates an electrical problem in the Output 


match the current operating conditions 



Detection 




Fallback 











• Output Shaft Speed Sensor 



• Failed or Loose Tone Wheel 

Transmission 

controller 


Output shaft 

speed sensor 

2-159


Code 58 (PID 191, FMI 2, 3, 4, 5), Output Shaft Speed Sensor Test 


1. Key off. 







pins 23 and 24 and 23 

and ground. 





range 

Go to Step B. 

Go to Step C. 

Code 58 

(PID 191, FMI 2, 3, 4, 5) 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

V COM A 

37 

13 14 

29 30 31 

32 33 34 

38 

24 25 

26 27 28 

23 

Ground 

15 16 17 

18 19 20 21 22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-160


Code 58 (PID 191, FMI 2, 3, 4, 5), Output Shaft Speed Sensor Test, continued 


1. Inspect Output Shaft 


or damage. 

If no problem found Replace Transmission ECU 


Go to Step V. 

If problem is found or you 

were sent here from Step C 

or D 

Replace Output Shaft Speed 

Sensor and inspect the tone 

wheel for damage, looseness or 

corrosion. Go to Step V. 



Harness from the Output Shaft 

Speed Sensor. 



pins A and B. 


ohms 


range 

Go to Step D. 

Go to Step B. 

OHMS 

A 

B 

V COM A 






greater 

Har- 




ohms 

Go to Step B. 

OHMS 

A 

B 

V COM A 

GROUND 

2-161


Code 58 (PID 191, FMI 2, 3, 4, 5), Output Shaft Speed Sensor Test, continued 


1. Key off. 




sensor. 

4. Key on. 

5. Clear codes(see page 1-5). 




page 1-5). 

If no codes 




testing. 

Code 58 

(PID 191, FMI 2, 3, 4, 5) 




2-162



(SID 39, FMI 5, 6) 

Rail Select Motor 

Overview 

This fault code indicates an electrical failure of the Rail Select 

Motor. 



Detection 


ECU constantly measures the motor circuit. If a Failure 

mode of short to battery, short to ground, or open circuit is 

detected the fault code is set. 

Fallback 









• Rail Select Motor 




Transmission controller Rail select motor Transmission harness 

2-163


Code 61 (SID 39, FMI 5, 6), Rail Select Motor Test 


1. Key Off. 



Harness 38-way connector from 

the Transmission ECU 




pins 35 and 37. 

If resistance is .3 to 150 

ohms 


range 

Go to Step B. 

Go to Step C. 

Code 61 

(SID 39, FMI 5, 6) 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-164


Code 61 (SID 39, FMI 5, 6), Rail Select Motor Test, continued 





pins 35 and ground. 


greater 


ohms 



Go to Step V. 

Go to Step C. 

OHMS 

V COM A 

Front View 


GROUND 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


2-165


Code 61 (SID 39, FMI 5, 6), Rail Select Motor Test, continued 


1. Disconnect 2-way Rail Select motor 

connector from the Transmission 

Harness. 


Rail Select Motor 

harness 2-way connector 

pins A and B and A to 

ground. 

If resistance between A & B is 

.3 to 150 ohms and pin A to 



Go to Step V. 


range 

B 

A 

OHMS 

B 


Step V. 

A 

OHMS 

Code 61 

(SID 39, FMI 5, 6) 

V COM A 

V COM A 

GROUND 


1. Key off. 



3. Key on. 





page 1-5). 

If no codes 




testing. 




2-166



(SID 40, FMI 5, 6) 

Gear Select Motor 

Overview 

This fault code indicates an electrical failure of the Gear Select 

Motor. 



Detection 


ECU constantly measures the motor circuit. If a Failure 

mode of short to battery, short to ground, or open circuit is 

detected the fault code is set. 

Fallback 









• Gear Select Motor 




Transmission controller Gear select motor Transmission harness 

2-167


Code 63 (SID 40, FMI 5, 6), Gear Select Motor Test 


1. Key Off 



Harness 38-way connector from 

the Transmission ECU 




pins 36 and 38. 

If resistance is .3 to 150 

ohms 


range 

Go to Step B. 

Go to Step C. 

Code 63 

(SID 40, FMI 5, 6) 

Front View 


OHMS 

V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-168


Code 63 (SID 40, FMI 5, 6), Gear Select Motor Test, continued 







greater 


ohms 



Go to Step V. 

Go to Step C. 

OHMS 

Front View 


V COM A 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

21 

38 

22 

GROUND 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

2-169


Code 63 (SID 40, FMI 5, 6), Gear Select Motor Test, continued 


1. Disconnect 2-way Gear Select 

Motor connector from the Transmission 

Harness. 


Gear Select Motor 

harness 2-way connector 

pins A and B and A to 

ground. 

If resistance between A & B 

is .3 to 150 ohms and pin A to 



Go to Step V. 


range 

B 

A 

OHMS 

B 


Step V. 

A 

OHMS 

Code 63 

(SID 40, FMI 5, 6) 

V COM A 

V COM A 

GROUND 


1. Key off. 



3. Key on. 





page 1-5). 

If no codes 




testing. 




2-170



(SID 60, FMI 7) 

Unable to Disengage Gear 

Overview 

This fault code indicates the transmission was unable to move 

the front box to neutral during a shift request. 

Detection 

The transmission detects this by attempting the same shifter 

actions three times and not sensing the desired position. 

Fallback 










• Low Power to Gear Select Motor 

• Electric Shifter 



• Yoke / Clutch / Main Shaft 

• Shift Bar Housing 

• Dragging Clutch 

• Torque Locked in Gear 

Shift bar housing 

Electric shifter 

Main shaft 

2-171


Code 71 (SID 60, FMI 7) , Unable to Disengage Gear Test 


1. Key on. 

2. Place Shift Device in Neutral. 

3. Depress clutch pedal (if 

equipped) half way to the floor. If 

it’s a two pedal design apply the 

service brake 

4. Observe Gear Display. If Gear Display shows: “N” Test complete. 

Code 71 

(SID 60, FMI 7) 

If you have an active code 

71 or Gear Display shows a 

dash 

Go to Step B. 

2-172


Code 71(SID 60, FMI 7), Unable to Disengage Gear Test, continued 


1. Key off. 




batteries. 







Go to Step C. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

2-173





Harness. 

2. Key on. 



post. 



volts or less 

Go to Step D. 



Diagnostics 

VOLTS 



Code 71 

(SID 60, FMI 7) 

B 

C 

A 

D 

V COM A 


4-way 




2-174





Harness. 

2. Key on. 





voltage 


Go to Step E. 





Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




2-175




1. Key on. 





voltage 


Go to Step F. 



test. 


Diagnostics 

B 

C 

A 

D 

VOLTS 

V COM A 

Code 71 

(SID 60, FMI 7) 

4-way 




2-176




1. Key off. 

2. Remove Electric Shifter from 

Shift Bar Housing. 

3. Inspect the Shift Bar 

Housing: 

• Shift Blocks 

• Shift Rails 

• Inspect electric shifter 

for evidence of lube contamination 

Note: See if the Shift Bar 

Housing can engage 

two gears at the same 

time to verify interlock 

operation. 


If problem found 


Step V. 

Repair as required. Go to Step 

V. 


1. Key off. 


the negative battery cable. 

3. Key on. 




6. Check for codes(see 

page 1-5). 

If no codes 




Return to Step A to find error in testing. 



2-177



Code 71 

(SID 60, FMI 7) 


2-178



(SID 59, FMI 7) 

Failed to Select Rail 

Overview 

This fault code indicates the transmission is unable to select 

the required rail during a shift. 

Detection 


actions five times and not sensing the desired position. 

Fallback 










• Low Power to Rail Motor 



• Rail Select Sensor 






Diagnostic Port 

2-179


Code 72 (SID 59, FMI 7), Failed to Select Rail Test 


1. Key on. 


3. Depress clutch pedal (if 

equipped) half way to the 

floor. If it’s a two pedal design 

apply the service brake. 

4. Select Drive 

5. Observe gear 

display. 


72 or a flashing gear with 

no arrows 

If Gear Display shows solid 

gear 

Go to Step B. 

Go to Step V. 

Code 72 

(SID 59, FMI 7) 


1. Key off. 




batteries. 







Go to Step C. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

2-180


Code 72 (SID 59, FMI 7), Failed to Select Rail Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step D. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-181





Harness. 

2. Key on. 





voltage 

Go to Step E. 



Diagnostics 

VOLTS 




Code 72 

(SID 59, FMI 7) 

V COM A 

B 

C 

A 

D 

4-way 




2-182




1. Key on. 





voltage 


Go to Step F. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




2-183




1. Key off. 




Housing: 



• Inspect electric shifter for 

evidence of lube contamination 

Note: See if the Shift Bar Housing 

can engage two gears at 

the same time to verify interlock 

operation. 



Step V. 

Code 72 

(SID 59, FMI 7) 



V. 


1. Key off. 



3. Key on. 





page 1-5). 

If no codes 







2-184



(SID 58, FMI 7) 

Failed to Engage Gear 

Overview 

This fault code indicates the transmission is unable to engage 

the desired gear in the front box during a shift. 

Detection 


actions five times and not sensing the desired position. 

Fallback 










• Low Power to Gear Motor 








Main shaft 

2-185


Code 73 (SID 58, FMI 7), Failed to Engage Gear Test 


1. Key on. 


3. Depress clutch pedal 

(if equipped) half 

way to the floor. If it’s a two 

pedal design apply the service 

brake. 


5. Observe gear display. 


73 or a flashing gear with 

no arrows 

If Gear Display shows a solid 

gear 

Go to Step B. 

Go to Step V. 

Code 73 

(SID 58, FMI 7) 


1. Key off. 




batteries. 







Go to Step C. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

2-186


Code 73 (SID 58, FMI 7), Failed to Engage Gear Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step D. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




2-187





Harness. 

2. Key on. 





voltage 

Go to Step E. 



Diagnostics 

VOLTS 




Code 73 

(SID 58, FMI 7) 

V COM A 

B 

C 

A 

D 

4-way 




2-188




1. Key on. 





voltage 


Go to Step F. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




2-189




1. Key off. 




Housing: 








operation. 



Step V. 

Code 73 

(SID 58, FMI 7) 



V. 


1. Key off. 



3. Key on. 





page 1-5). 

If no codes 







2-190



(PID 93, 190, FMI 7) 

Engine Failed to Respond 

Overview 

This fault code indicates the transmission is unable to use 

system controls to synchronize during a shift. 

Detection 

If there is engine communication on the J-1939 Link and the 

engine does not respond to transmission speed and torque 

commands, the code will set. 

Fallback 








• Engine Control System 

If the failure occurs while moving, it could cause a 1-speed 

fallback. Once the vehicle is stopped, starting gear and 

reverse gear can be engaged. 

Engine 

ECM 

Engine control system 

Inertia brake 

2-191


Code 74 (PID 93, 190, FMI 7), Engine Failed to Respond Test 


1. Key on. 

2. Retrieve codes. (see 

page 1-5). 


Contact the OEM because the engine 

is failing to respond to the 

transmissions command during 

a shift. 

If code is not active 


Code 74 

(PID 93, 190, FMI 7) 

2-192



(SID 60, FMI 14) 

Power Down in Gear 

Overview 

This fault is detected when the vehicle is powered down in any 

gear position other than neutral. 

Detection 

The Transmission ECU monitors shift device position and 

electric shifter position during vehicle shut down. If a nonneutral 

shift device position and in gear position are detected 

during vehicle shut down, this code will be set. 

Fallback 




• Driver Instruction Book 



• Improper Shut Down Procedure 

No Fallback Mode. This is a non driving power down fault, it 

may cause a “-” dash during power up if the transmission is 

torque locked after shutting down in gear. 

VOLUME 

CONTROL 

SERVICE 

SHIFT 


Transmissions 

R 

N 

D 

H 

L 



2-193


Code 75 (SID 60, FMI 14), Power Down in Gear Test 


1. Key on. 


page 1-5). 


No action necessary, this code 

indicates the driver powered 

down the system prior to selecting 

neutral. 

Explain to driver, shift selector 

must be in neutral before powering 

down to prevent a stuck in 

gear situation and or a power up 

no crank situation. 

Code 75 

(SID 60, FMI 14) 

2-194



(SID 18, FMI 14) 

Shift Lever Missing 

Overview 

This fault code indicates the Eaton Shift Lever or the OEM 

Shift Lever is not sensing any lever positions. 

Detection 


ECU constantly measures the feedback from the Shift 

Lever circuit. If the Shift Lever reports no lever positions are 

sensed, the fault code is set. 

Fallback 







• Eaton Shift Lever or OEM Shift Lever 

This fault causes a downshift only fallback and shifts to neutral 

when the vehicle stops. 


2-195


Code 83 (SID 18, FMI 14), Shift Lever Missing Test 


1. Key on. 


page 1-5). 

If code 83 is active Replace Eaton Shift Lever or 

OEM Shift Lever. 

If 83 is inactive 


Code 83 

(SID 18, FMI 14) 

2-196



(SID 18, FMI 13) 

Shift Control Device Not configured 

Overview 

This fault indicates a new Transmission ECU has not detected 

a shift control device. 

Detection 

The fault is detected the first time the system is powered up. 

The Transmission ECU looks for a shift control device if none 

are detected the system will set this code. 

NOTE: The fault will only be set active. 

Fallback 

Power up no crank. 







• Damaged OEM Wiring Harness between Transmission 

ECU and shift control device after new ECU is 

installed. 

• Disconnected shift control device after new ECU is 

installed. 


2-197


Code 84 (SID 18, FMI 13), Shift Control Device Not configured Test 


1. Verify shift control device is connected 

to the OEM wiring. 

2. Key on 


page 1-5). 


Repair OEM wiring between 

Transmission ECU and shift control 

device. 

Code 84 

(SID 18, FMI 13) 

2-198



(SID 18, FMI 12) 

Shift Control Device Incompatible 

Overview 

This fault indicates the Transmission ECU has detected a non 

compatible shift control device. 

Detection 

The Transmission ECU looks for a shift control device every 

time the system is powered up. If a non compatible shift control 

device is detected the system will set this code. 

Fallback 

This fault causes an In Place Fallback 







• Non compatible shift control device 

VOLUME 

CONTROL 

SERVICE 

SHIFT 


Transmissions 

R 

N 

D 

H 

L 



2-199


Code 85 (SID 18, FMI 12), Shift Control Device Incompatible 


1. Verify shift control device is 

connected to the OEM wiring. 

2. Key on 


page 1-5) 

If code 85 is active Verify correct shift control 

device is installed on vehicle. 

Code 85 

(SID 18, FMI 12) 

2-200

Symptom Isolation Procedures 

Up/Down Button Test Overview 

Overview 

This symptom-driven test is performed if unable to shift the 

transmission with the Up/Down Buttons, and there are no 

active or inactive codes. 

Detection 

The shift control has no fault detection capability for this failure. 

The failure is observed by the driver when operating the 

vehicle. 

Fallback 






This symptom can be caused by any of the following: 

• Pushbutton Shift Control 

• Shift Lever 

There is no fallback for this symptom. 

Side view 

of pushbutton 

shift control 

VOLUME 

CONTROL 

SERVICE 

SHIFT 


Transmissions 

R 

N 

D 

H 

L 



3-1


Up/Down Button Test 



2. Place Shift Device in “Manual”. 

3. Drive the vehicle and use 

the buttons to initiate upshifts 

and downshifts, 

when shift conditions 

permit. 

If the up and down buttons 

are working properly, the 

transmission will make upshifts 

and downshifts. 


If the transmission does not 

make upshifts and/or downshifts. 

Replace Shift Control. 

this step. 

Repeat 

Up/Down Button Test 

3-2


Start Enable Relay Contact Test Overview 

Overview 

This symptom-driven test is performed if the engine does not 

crank with the Shift Lever in neutral, and there are no active or 

inactive codes. 

Detection 

The Transmission ECU has no fault detection capability for 

this failure. The failure is observed by the driver when operating 

the vehicle. To observe this failure, attempt to start the 

vehicle. 

Fallback 

This symptom has no affect on vehicle operation, however, if 

the failure occurred before the engine was started, it is possible 

the engine will not start. 








• Start Enable Relay 

• Starter Solenoid Wiring 


26 


32 

4 

Run to 


Trans ECU Legend 


(30, 87) = Switched ignition 




30 

87 

86 

85 

Run to start 

signal from 

ignition switch 

Start 

enable relay 

3-3


Start Enable Relay Contact Test 


1. Key off. 



integrity. 


batteries. 











VOLTS 

– 

+ 

V COM A 

– 

+ 

Start Enable Relay Contact 

Test 

3-4


Start Enable Relay Contact Test, continued 




2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




3-5






2. Key on. 





voltage 


Go to Step D. 





Diagnostics 

VOLTS 

V COM A 

B 

C 

4-way 

A 

D 





Test 

3-6




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




3-7




1. Key off. 

Note: The Start Enable Relay must be 

wired according to Eaton GEN 

III requirements (shown on 

previous page) for this test to 

work properly. If wired 

differently, consult OEM for 

correct wiring schematic. 

2. Disconnect negative 

battery cable. 



4. Reconnect negative battery cable. 

5. Key on. 

6. Engage Starter. If engine cranks Go to Step F. 

If engine does not crank Go to Step G. 


1. Key off. 

2. Remove the Start Enable Relay. 

3. Key on. 

4. Engage starter. If vehicle cranks Repair short to power on Vehicle 



Test 

If vehicle does not crank 

Replace Start Enable Relay. Go 

to Step V. 

3-8




1. Key on. 


cable. 

3. Reconnect Vehicle Harness 38- 


4. Reconnect negative battery cable. 

5. Place a jumper wire across 

connector contacts 30 and 87. 

6. 

WARNING 

Make sure the parking brake is set 

before jumping the Start Enable 

Relay. 

7. Key on. Verify neutral on Gear 

Display. 

8. Engage starter. If engine cranks Replace the Start Enable Relay. 

Go to Step H. 

If engine does not crank 

Refer to OEM for repair of 

harness or starter. 

30 

86 

85 

87 

3-9




1. Key off. 


cable. 

3. Disconnect Vehicle Harness 


4. Disconnect the Start Enable 

Relay. 


between pin 87 of the start 

enable relay connector and 

pin 26 of the Vehicle Harness 

38-Way connector. 

If resistance is 0 to .3 ohms Go to Step V. 

If resistance is greater than 

10K ohms 

Repair wiring. Go to Step V. 

86 

87 

87a 

30 

85 

OHMS 

V COM A 


Test 

37 

13 14 

35 

29 30 31 

32 33 34 

23 24 25 

26 27 28 

15 16 17 

18 19 20 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

21 

38 

36 

22 

Front View 


3-10




1. Key off. 


3. Key on. 

4. Start the engine to 

determine whether 

the Start Enable Relay contact 

complaint has been repaired. 

If engine starts 

If engine does not start 



testing. 

3-11




Test 


3-12


J-1587 Data Link Test Overview 

Overview 

This symptom-driven test is performed if the ServiceRanger a 

PC-based Service Tool does not work. 

Detection 

The service technician observes the failure when operating 

the PC-based Service Tool. To observe this failure, simply 

connect the PC-based Service Tool to the transmission via the 

J-1587 diagnostic connector located in the cab. 

Fallback 

There is no fallback mode for the J-1587 Data Link. The PC- 

Base Service Tool will not work correctly. 










• J-1587 Data Link Harness 




OEM 

10 

11 

J-1587 data link 

+12 

volts 

battery 

A ATA+ 

B ATA– 

C + Battery 

D 

E Ground 

F 

6-way 

diagnostic connector 

F 

E 

A 

D 

C 

B 

9-way 

GROUND 

diagnostic connector 

A Ground 

E D 

B + Battery 

C C 

F 

A B 

D 

G 

J E 

H 

F ATA+ 

G ATA- 

H 

J 

3-13


J-1587 Data Link Test 


1. Key on. 

2. Measure voltage either 

between 6-way diagnostic 

connector pins C and 

E or 9-way diagnostic 

connector pins B and A. 




Go to Step B. 

Repair battery or ground wire to 

vehicle diagnostic connector. 

Go to Step V. 

F 

E 

A 

B 

C 

VOLTS 

F 

E 

A 

D 

C 

B 

VOLTS 

D 

V COM A 

G 

H 

J 

V COM A 


3-14


J-1587 Data Link Test, continued 


1. Key off. 




4. Measure resistance from 


connector pin 10 and either 

6-way diagnostic 

connector pin A or 9-way 

diagnostic connector pin 

F. 

If resistance is 0 to .3 ohms Go to Step C. 


range 

Repair vehicle interface harness. 


Front View 


OHMS 

F 

A 

B 

E 

C 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

D 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

F 

E 

A 

D 

C 

B 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

G 

H 

J 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


3-15





either 6-way diagnostic 

connector pin A or 

9-way diagnostic connector 

pin F and ground. 


greater 


ohms 

Go to Step D. 


Go to Step V. 

OHMS 

F 

A 

B 

OHMS 

F 

E 

A 

D 

C 

B 

V COM A 

E 

D 

C 

V COM A 

G 

H 

J 

Ground 

Ground 




38-way connector pin 11 

and either 6-way diagnostic 

connector pin B or 


pin G. 

If resistance is 0 to .3 ohms Go to Step E. 



range 


Go to Step V. 

Front View 


OHMS 

F 

A 

B 

E 

C 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

D 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

OHMS 

F 

E 

A 

D 

C 

B 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

G 

H 

J 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

3-16





either 6-way diagnostic 

connector pin B or 


pin G and ground. 


greater 


ohms 

Go to Step F. 


Go to Step V. 

OHMS 

F 

A 

B 

OHMS 

F 

E 

A 

D 

C 

B 

E 

D 

C 

G 

H 

J 

V COM A 

V COM A 

GROUND 

GROUND 

3-17




1. Key off. 

2. Reconnect Vehicle Harness 


3. Disconnect all data links to the 

vehicle diagnostic connector, 

leaving only the transmission 

connected. Reconnect negative 

battery cable. 

4. Connect the Data Link Tester 

across the 6-way diagnostic 

connector pins A and B or the 

9-way diagnostic connector F 

and G. 

5. Key on. 

6. Place the Data Link 

Tester in the Communication 

Test mode. 

If LED is Solid or Flashing 

If LED is off 

Problem exists with service tool 

in one of the following areas: 

• Communication box 

• Cables 

• PC 

Repair as required. Go to 

Step V. 


to Step V. 


3-18




Black 

F 

E 

A 

D 

B 

C 

Red 



SELF TEST 

OFF 

OFF 

COMMUNICATION 

TEST 

Part No. 691582 

Red 


F 

E 

A 

D 

C 

B 


SELF TEST 

OFF OFF 

G 

H 

J 

Black 

COMMUNICATION 

TEST 

Part No. 691582 


1. Key on. 

2. Connect ServiceRanger a 

PC-based Service Tool. 

If ServiceRanger a PC-based 

Service Tool functions correctly 

If ServiceRanger a PC-based 

Service Tool does not function 

correctly 



testing. 

3-19





3-20


Front Box Control Test Overview 

Overview 

This symptom-driven test is performed if a “-” is displayed on 

the Gear Display, and there are no active or inactive codes 

Detection 

Turn the key on and watch the Gear Display. If the Gear Display 

shows “-” constantly, the Transmission ECU was not able 

to confirm front box control. 

Any time the service lamp is flashing, go to Diagnostics Procedure. 

(see page 3-21). 

Fallback 

This fault causes an In Place fallback while moving, and it 

causes a failure during system initialization. A “-” will appear 

on the Gear Display. 








• Low Power to Gear Select Motor 






• Torque Locked in Gear 



Main shaft 

3-21


Front Box Control Test 


1. Key on. 


(if equipped) half way to the floor. 


4. Observe Gear Display. 

If Gear Display shows: “N” Go to Step B. 

Note: If service lamp is 

flashing, go to Diagnostics 

Procedure 

(page 1-2). 

If Gear Display shows: “-” or 

a flashing gear with no arrows 

Go to Step C. 


1. Key on. 




(if equipped) half way to the floor. 

If it’s a two pedal design apply the 

service brake. 


5. Observe Gear Display. 

Note: If service lamp is 

flashing, go to Diagnostics 

Procedure 

(page 1-2). 

If Gear Display shows a solid 

gear 

Test complete 

If Gear Display shows a 

flashing gear with no arrows 

Go to Step C. 

3-22


Front Box Control Test, continued 


1. Key off. 




batteries. 







Go to Step D. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

3-23





Harness. 

2. Key on. 



post. 



volts or less 


Go to Step E. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 

4-way 






3-24





Harness. 

2. Key on. 





voltage 


Go to Step F. 





Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




3-25




1. Key on. 





voltage 


Go to Step G. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 





3-26




1. Key off. 

2. Remove Electric Shifter 

from Shift Bar Housing. 


Housing: 








operation. 




Step V. 


V. 


1. Key off. 


3. Place Shift Control into neutral. 

4. Key on. If Gear Display displays a 

solid “N” 

If Gear Display does not display 

a solid “N” 



testing. 

3-27





3-28

A 

B 


AutoShift Will Not Engage a Gear from Neutral Overview 

Overview 

This symptom-driven test is performed if the transmission 

does not engage a gear, and there are no active or inactive 

codes. 

Detection 

If the Transmission ECU is unable to provide a fault code, the 

driver may observe this failure as the transmission not initiating 

or completing a shift. The driver may observe this failure 

as the transmission neutralizes. 

Fallback 

There is no fallback mode for this symptom. 










• Transmission 

• Clutch Brake/Clutch 




Shift Bar Housing 

Main Shaft 


D1 

D2 

Input shaft 

speed sensor 

3-29


AutoShift Will Not Engage a Gear from Neutral Test 


1. Key off. 




batteries. 







Go to Step B. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

AutoShift Will Not Engage 

a Gear from Neutral Test 

3-30


AutoShift Will Not Engage a Gear Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




3-31





Harness. 

2. Key on. 





voltage 


Go to Step D. 





Diagnostics 

VOLTS 

V COM A 

B 

C 

4-way 

A 

D 






3-32




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




3-33




1. Key on. 

2. Depress clutch pedal. 


4. Release clutch pedal to verify Input 

Shaft speed. 


6. Place Shift Lever in “D”. 

7. Observe Gear Display. If Gear Display shows a solid 

“N” and the warning tone sounds 

Go to Step F. 


flashing gear with arrows 

Go to Step L. 



If Gear Display shows a solid gear but 

the vehicle will not move 


1. Key off. 


Service Tool. 

Go to Front Box Control Test. 

Contact your local Eaton Representative 

or call 1-800-826- 

HELP (4357). 



3. Start engine. Release clutch pedal. 

4. View Input Shaft speed. If Input Shaft speed exists Contact your local Eaton Representative 

or call 1-800-826- 

HELP (4357). 

If Input Shaft speed does not 

exist 

Go to Step G. 

3-34




1. Key off. 




4. Measure the resistance 

between the Transmission Harness 

38-way connector pins 7 

and 8. 


ohms 


range 

Go to Step H. 

Go to Step J. 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

3-35







pin J1 and ground. 


greater 


ohms 

Go to Step I. 

Go to Step J. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 




or damage. 


35 

7 

8 9 

11 12 

1 2 3 

4 5 6 

If no problem found Go to Step L. 

10 

36 

GROUND 



If problem found or you were 

sent here from Step I or J 

Replace Input Shaft Speed Sensor 

and inspect the upper countershaft 

PTO gear for damage. 

Go to Step V. 

3-36





Harness from the Input Shaft 

Speed Sensor. 





ohms 


range 

Go to Step K. 

Go to Step I. 

OHMS 

A 

B 

V COM A 






greater 


ohms 


Go to Step V. 

Go to Step I. 

OHMS 

A 

B 

V COM A 

GROUND 

3-37




1. Key off. 

2. Verify the Upper Countershaft is 

turning. 

3. Turn the Input Shaft and 

verify the Upper Countershaft 

is rotating. 

If Upper Countershaft is turning 

If Upper Countershaft is not 

turning 


to Step V. 

Contact your Eaton Representative 

or call Eaton at 1-800-826- 

HELP (4357). 


1. Connect P.C. based service tool. 



4. View input shaft speed. If input shaft speed does not 

drop below 150 rpm 

If input shaft speed drops below 

150 


Clutch is out of adjustment and/ 

or Input Shaft Brake (Clutch 

Brake) is malfunctioning. Adjust 

clutch per manufacturer’s specifications. 

Go to Step V. 

Test complete. Go toStep V. 



1. Key off. 


3. Key on. 

4. Drive the vehicle to determine 

whether the 


If the transmission engages 

a gear 


engage a gear 



testing. 

3-38

A 

B 

A 

B 


UltraShift DM3 Will Not Engage a Gear from Neutral Overview 

Overview 

This symptom-driven test is performed if the transmission 

does not engage a gear, and there are no active or inactive 

codes. 

Detection 

If the Transmission ECU is unable to provide a fault code, the 

driver may observe this failure as the transmission not initiating 

or completing a shift. The driver may observe this failure 

as the transmission neutralizes. 

Fallback 













• Clutch/Clutch Brake 

• OEM Service Brake Switch Operation 




Shift Bar Housing 

Main Shaft 


D1 

D2 

Input shaft 

speed sensor 

H1 

H2 

Inertia brake 

3-39


UltraShift DM3 Will Not Engage a Gear from Neutral Test 


1. Key off. 




batteries. 







Go to Step B. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

UltraShift DM3 Will Not 

Engage a Gear from 

Neutral Test 

3-40


UltraShift DM3 Will Not Engage a Gear Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




3-41





Harness. 

2. Key on. 





voltage 


Go to Step D. 





Diagnostics 

VOLTS 

V COM A 

B 

C 

4-way 

A 

D 






Neutral Test 

3-42




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




3-43




1. Key on. 


3. Apply service brake while selecting 

“D”. 

Note: Using a ServiceRanger a 

PC-based Service Tool verify 

OEM service brake operation. 

4. Observe Gear Display. If Gear Display shows a solid 

“N” and the warning tone sounds 

Go to Step F. 


flashing gear with arrows 



Go to Step M. 

Go to Front Box Control Test. 

If Gear Display shows a solid gear but 

the vehicle will not move 


1. Key off. 

2. Connect PC-based Service Tool. 



HELP (4357). 



Neutral Test 

3. Start engine. Increase rpm and 

hold above 1000 rpm. 

4. View Input Shaft speed. If Input Shaft speed exists Contact your Eaton Representative 


HELP (4357). 

If Input Shaft speed does not 

exist 

Go to Step G. 

3-44




1. Key off. 






Harness 38-way 

connector pins 7 and 8. 


ohms 


range 

Go to Step H. 

Go to Step I. 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


3-45









greater 


ohms 

Go to Step J. 

Go to Step I. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 



1. Inspect Input Shaft Speed Sensor 

for contamination or damage. 

If no problem found Go to Step L. 


sent here from Step J or K 

35 

7 

8 9 

11 12 

1 2 3 

4 5 6 

10 

36 

GROUND 




Go to Step V. 



Neutral Test 

3-46






Speed Sensor. 





ohms 


range 

Go to Step K. 

Replace Input Shaft Speed Sensor. 

Go to Step V. 

OHMS 

A 

B 

V COM A 






greater 


ohms 


Go to Step V. 

Replace Input Shaft Speed Sensor. 

Go to Step V. 

OHMS 

A 

B 

V COM A 

GROUND 

3-47




1. Key off. 

2. Turn the Input Shaft and 

verify the Upper Countershaft 

is rotating. 

If Upper Countershaft is turning 

If Upper Countershaft is not 

turning 


to Step V. 



HELP (4357) for a repair strategy. 


1. Connect P.C. based service tool. 


3. View input shaft speed. If input shaft speed does not 

drop below 150 rpm. 

Clutch is dragging. Go to Step 

N. 

If input shaft speed drops below 

150 


1. Key on. 

2. Make sure the PTO is off. 

Test complete. Go to Step V. 



Neutral Test 


Service Tool and select 

“Advanced Product Functions”. 


5. Select “Inertia Brake Test”. 


Test passes Replace Clutch. Go to Step V. 

Test fails 

Test aborts 


Step V. 



3-48




1. Key off. 


3. Key on. 


whether the 


If the transmission engages 

a gear 


engage a gear 



testing. 

3-49





Neutral Test 


3-50


UltraShift AW3 Clutch Engagement Overview 

Overview 

This symptom-driven test is performed if a clutch engagement 

complaint exists, and there are no Active or Inactive 

codes. 

Detection 

There is no detection other than a driver complaint. 

Fallback 

There is no fallback mode for clutch engagement complaint, 

however, it may effect vehicle performance. 









• Clutch Calibration 


Inertia Brake 

WetClutch Fluid 

3-51


UltraShift AW3 Clutch Engagement Test 


1. Place transmission in neutral. 


RPM for a minimum of 2 minutes. 

Ensure transmission fluid 

temperature is 60 to 120 degrees 

F (16 to 49 degrees C) 

3. Check transmission fluid 

level. 

If fluid level is at COLD-FULL 

mark 


COLD-ADD mark 

Go to Step B. 

Correct fluid level, check for 

leaks. Drive Vehicle, if Clutch Engagement 

Complaint exist repeat. 

Step A. 


1. Remove the flywheel inspection 

cover and inspect 

the rubber coupler 

for damage or shear. 

If no damage is observed Go to Step C. 

If damage is observed 


Replace the Torsional Coupler. 

Go to Step V. 

UltraShift AW3 Clutch 

Engagement Test 

1. Key on. 

2. Engine running, allow engine to 

reach operating temperature 

3. Key off. 

4. Start vehicle. 

5. Allow vehicle to Idle in Neutral for 

a minimum of 2 (two) minutes. 

6. Drive vehicle. If Clutch Engagement Complaint 

does not change 

If Clutch Engagement Complaint 

is corrected 

Go to Step D. 


3-52


UltraShift AW3 Clutch Engagement Test, continued 


1. Key off. 


from the I-Brake. 

3. Key on. 

4. Drive vehicle (Flashing 

Service Light will exist). 


does not change 


is corrected 



HELP (4357). 


Step V. 


1. Key Off. 

2. Reconnect Transmission Harness 

to I-Brake. 

3. Key on. 


whether the 


If shift complaint has not 

been repaired 

If the shift complaint has 

been repaired 



HELP (4357). 


3-53


UltraShift AW3 Clutch Engagement Test, continued 

UltraShift AW3 Clutch 

Engagement Test 


3-54


AutoShift AS3 Shift Complaint Overview 

Overview 

This symptom driven test is performed if a shift complaint 

exists, and there are no active or inactive codes. 

Detection 


Fallback 

There is no fallback mode for a shift complaint, however, it 

may affect vehicle performance. 




• 0-100 PSI Air Pressure Gauge (2) 





• Range system 

• Splitter system 





Input Shaft 

Speed Sensor 

Range System 

Splitter System 



3-55


AutoShift AS3 Shift Complaint Test 


1. Key off. 



integrity. 


batteries. 











VOLTS 

– 

+ 

V COM A 

– 

+ 

AutoShift AS3 Shift 

Complaint Test 

3-56


AutoShift AS3 Shift Complaint Test, continued 




2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




3-57






2. Key on. 

3. Measure voltage 

between pins B and pin C. 



voltage 


Go to Step D. 





Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 






3-58




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 





1. Connect PC based 

service tool and 

monitor input shaft 

speed with clutch 

pedal released. 

If input shaft speed matches 

engine rpm 

Go to Step K. 

If Input shaft speed reads 0 Go to Step F. 

3-59




1. Key off. 


cable. 






pins 7 and 8. 


ohms 


range 

Go to Step G. 

Go to Step I. 

OHMS 

Front View 


V COM A 


37 

13 14 

35 

29 30 31 

32 33 34 

23 24 25 

26 27 28 

15 16 17 

18 19 20 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

21 

38 

36 

22 



3-60









greater 


ohms 

Go to Step H. 

Go to Step I. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

GROUND 




or damage. 



sent here from Step H or I 


to Step V. 

Replace Input Shaft Speed 


countershaft PTO gear for 

damage. Go to Step V. 

3-61






Speed Sensor. 


between Input Shaft 

Speed Sensor pins A and 

B. 


ohms 


range 

Go to Step J. 

Go to Step H. 

OHMS 

A 

B 

V COM A 



between Input Shaft Speed 



greater 


ohms 



Go to Step H. 



OHMS 

A 

B 

V COM A 

GROUND 

3-62




1. Key off. 




3. Start engine and allow air 

pressure to build to governor cutoff. 



dash. 


to 120 PSI 


range 

Go to Step L. 

Repair vehicle air system as 

required. Repeat this step. 

0-100 PSI 



1. Key off. 



If vehicle maintains air 

pressure 

If vehicle loses air pressure 

Go to Step M. 

Repair vehicle air system as 

required. Repeat this step. 



gauge installed at the 

regulated port. 

If air pressure is 55 to 65 PSI. Go to Step O. 


range. 

Go to Step N. 

3-63








line 


supply line 


Go to Step K. 


regulator. Go to Step K. 



3-64




1. Key off. 

2. Install both 0-100 PSI air 

pressure gauges into the range 

cover diagnostic ports. 

3. Start vehicle and allow air 

pressure to build to governor cutoff. 

4. Release clutch to register Input 

Shaft speed in the transmission. 






65 PSI and 

If HIGH range gauge = 0 PSI 





neutral. 

If both air pressure gauges 

do not read as listed above 

Go to Step P. 




HI range 


LO range 


3-65




1. Key on. 

2. With the Shift Control, 

select the highest reverse 

gear available by pressing the 

upshift button/arrow, then select 

neutral. 

If HIGH range gauge = 55 

to 65 PSI and 

If LOW range gauge = 0 

PSI 



Go to Step Q. 




HI range 


LO range 





1. Is the transmission 

equipped with a splitter system 

(i.e. 18-Speed) 

If the transmission is 


If the transmission is not 

equipped with a splitter 

system 

Go to Step R. 

Go to Step V. 

3-66




1. Key off. 

2. Start vehicle and allow air 

pressure to build to governor 

cut-off. 

3. Release clutch to register 

Input Shaft speed in the 

transmission. 

4. Turn off engine, but leave key 

in “ON” position. 

5. With Shift Control, 

select reverse (R1 in gear 

display for 13/18-speed), then 

select neutral 



gauge = 0 PSI 

Note: Five minutes is allowed for 

checking the pressure after 

moving the Shift Lever to 

neutral. 



Go to Step S. 




LO split 


HI split 


3-67




1. Key on. 




Note: If R2 isn’t displayed the up 

arrow button needs to be 

pressed. 



gauge = 0 PSI 



Go to Step V. 




HIGH split 


LOW split 





1. Key off. 



4. Key on. 

5. Drive the vehicle to 

determine whether the complaint 

has been repaired. 

If the transmission shifts 

normal 

If the transmission still has a 

shifting complaint 



testing. 

3-68


UltraShift DM3 Shift Complaint Overview 

Overview 

This symptom-driven test is performed if a shift complaint 

exists, and there are no Active or Inactive codes. 

Detection 


Fallback 

There is no fallback mode for shift complaint, however, it may 

effect vehicle performance. 












• Range System 

• Splitter System 

Input Shaft 

Speed Sensor 

Range System 

Splitter System 



3-69


UltraShift DM3 Shift Complaint Test 


1. Key off. 




batteries. 







Go to Step B. 




VOLTS 

– 

+ 

V COM A 

– 

+ 

UltraShift DM3 Shift 


3-70


UltraShift DM3 Shift Complaint Test , continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step C. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




3-71





Harness. 

2. Key on. 





voltage 


Go to Step D. 





Diagnostics 

VOLTS 

V COM A 

B A 

C D 

4-way 






3-72




1. Key on. 





voltage 


Go to Step E. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




3-73




1. Key on. 

Note: Engine rpm must remain 

above 1000 during the following 

test. 


"Advanced Product Function". 

3. Start Engine, PTO must be disengaged. 

4. Select "Inertia Brake Test" 

5. Run test and follow instructions 

Test passes Go to Step F. 

Test Fails Replace Inertia Brake. Go to 

Step V. 

Test Aborts 




1. Compare engine 

rpm to input shaft 

rpm with Service- 

Ranger. 

Note: Engine rpm must remain above 

1000 rpm during the following 

test. 

If input shaft speed matches 

engine rpm 

Go to Step L. 



If Input shaft speed reads 0 Go to Step G. 

3-74




1. Key off. 


cable. 




between the 



pins 7 and 8. 


ohms 


range 

Go to Step H. 

Go to Step J. 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

3-75









greater 


ohms 

Go to Step I. 

Go to Step J. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


1. Inspect Input Shaft Speed Sensor 

for contamination or damage. 



sent here from Step I or J 

GROUND 


to Step V. 




Go to Step V. 



3-76






Speed Sensor. 


between Input Shaft 

Speed Sensor pins A 

and B. 


ohms 


range 

Go to Step K. 

Go to Step I. 

OHMS 

A 

B 

V COM A 






greater 


ohms 


Go to Step V. 

Go to Step I. 

OHMS 

A 

B 

V COM A 

GROUND 

3-77




1. Key off. 








dash. 


to 120 PSI 


range 

Go to Step M. 



0-100 PSI 


1. Key off. 






dash. 


If vehicle loses air pressure 

Go to Step N. 





gauge installed at the 

regulated port. 

If air pressure is 55 to 65 PSI. Go to Step P. 


range. 

Go to Step O. 

3-78








line 


supply line 


Go to Step K. 


regulator. Go to Step K. 

3-79




1. Key off. 

2. Install both 0-100 PSI air pressure 

gauges into the range cover 

diagnostic ports. 










65 PSI and 

If HIGH range gauge = 0 PSI 





neutral. 



HI range 


LO range 


Go to Step Q. 






3-80




1. Key on. 

2. With the Shift Control, 

select the highest reverse 

gear available by pressing 

the upshift button/arrow, 


If HIGH range gauge = 55 

to 65 PSI and 

If LOW range gauge = 0 

PSI 



Go to Step R. 




HI range 


LO range 



1. Is the transmission 


(i.e. 13-Speed) 

If the transmission is 


If the transmission is not 


Go to Step S. 

Go to Step V. 

3-81




1. Key off. 








reverse (R1 in gear display 

for 13/18-speed), 

then select neutral 



gauge = 0 PSI 


for checking the pressure 

after moving the 

Shift Lever to neutral. 

Go to Step T. 



LO split 


HI split 







3-82



Step T Procedure Condition Action 

1. Key on. 




Note: If R2 isn’t displayed 

the up arrow 

button needs 

to be pressed. 



gauge = 0 PSI 



Go to Step V. 




HIGH split 


LOW split 



1. Key off. 



4. Key on. 


whether the 



normal 





testing. 

3-83






3-84


UltraShift AW3 Shift Complaint Overview 

Overview 

This symptom-driven test is performed if a shift complaint 

exists, and there are no Active or Inactive codes. 

Detection 


Fallback 

There is no fallback mode for shift complaint, however, it may 

effect vehicle performance. 















Inertia Brake 

3-85


UltraShift AW3 Shift Complaint Test 




RPM for a minimum of 2 minutes. 

Ensure transmission fluid 

temperature is 60 to 120 degrees 

F (16 to 49 degrees C) 

3. Check transmission fluid 

level. 

If fluid level is at COLD-FULL 

mark 


COLD-ADD mark 

Go to Step B. 

Correct fluid level, check for 

leaks. Go to Step V. 


1. Key off. 




batteries. 







Go to Step C. 




UltraShift AW3 Shift 

Complaint Testt 

VOLTS 

– 

+ 

V COM A 

– 

+ 

3-86


UltraShift AW3 Shift Complaint Test, continued 



Harness. 

2. Key on. 



post. 



volts or less 


Go to Step D. 




Diagnostics 

VOLTS 

B 

C 

A 

D 

V COM A 


4-way 




3-87





Harness. 

2. Key on. 





voltage 


Go to Step E. 





Diagnostics 

VOLTS 

V COM A 

B A 

C D 

4-way 






3-88




1. Key on. 





voltage 


Go to Step F. 



test. 


Diagnostics 

VOLTS 

V COM A 

B 

C 

A 

D 

4-way 




3-89




1. Key on. 


“Advanced Product Function”. 

3. Start Engine, PTO must be 

disengaged. 

4. Select “Inertia Brake Test” 


Test Passes Go to Step G. 

Test Fails 

Test Aborts 


Step V. 




1. Drive vehicle and monitor 

engine rpm and input 

shaft rpm with Service- 

Ranger 

If engine rpm and input shaft 

rpm match during the test 

drive 

If input shaft rpm is erratic or 

reads zero 


Go to Step H. 



3-90




1. Key off. 


cable. 




between the 



pins 7 and 8. 


ohms 


range 

Go to Step I. 

Go to Step J. 

OHMS 

Front View 


V COM A 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

3-91









greater 


ohms 

Go to Step J. 

Go to Step K. 

Front View 


OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

V COM A 

13 14 

15 16 

17 

18 19 

20 

21 

22 


35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 




or damage. 



sent here from Step J or K 

GROUND 


to Step V. 




Go to Step V. 



3-92






Speed Sensor. 





ohms 


range 

Go to Step L. 

Go to Step J. 

OHMS 

A 

B 

V COM A 






greater 


ohms 


Go to Step V. 

Go to Step J. 

OHMS 

A 

B 

V COM A 

GROUND 

3-93




1. Key off. 



4. Key on. 


whether the 



normal 





testing. 



3-94


Shift Lever Back Light Overview 

Overview 

This symptom-driven test is performed if the Shift Lever or 

Shift Control back lighting is not functioning. 

Detection 


Fallback 









• OEM Wiring 

• Shift Control 

• Shift Lever 

3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 

Dimmer control input 

Back side 

of gauges 

Dash lights 

Push Button Control 


Push Button Shift Control 

F2 F1 J3 C1 B3 

25 

31 

15 

16 

17 

23 

Back side Dimmer control input 

of gauges 

Dash lights 

Shift Control ECU Legend 


(4-31, C1) = +12 volt switched from TECU 

(1-15, 8-16, 2-17, F2, F1) = Communication from and to the ECU15.8.2 

(3-25, 5, J3, B3) = Signal returns, grounds, and general OEM wiring 

(6-23) = Signal from ECU 

3-95


Shift Lever Back Light Test 


1. Verify Shift Lever If vehicle is equipped with an 

OEM Shift Lever 

If vehicle is equipped with a 


If vehicle is equipped with 

Cobra Lever 

Refer to OEM for repair strategy. 

Go to Step B. 

Go to Step C. 


1. Key off. 


connector. 

3. Key on. 

4. Turn dimmer switch to max. 


pin B3 and J3. 

VOLTS 




Replace Shift Control. Go to 

Step V. 

Repair OEM wire between pin B3 

and the dash lights. Go to Step 

V. 


V COM A 

K 

3 2 1 

J 

H 

G 

F 

E 

D 

C 

B 

A 

3 2 1 

3-96


Shift Lever Back Light Test, continued 


1. Key on. 

2. Turn vehicle lights on. 

3. Turn dimmer switch to max. Cobra Lever lights on, but do 

not dim when vehicle lights are on 

Cobra Lever lights do not 

come on 

Go to Step D. 

Go to Step E. 


1. Key off. 

2. Disconnect Cobra Lever 8-way 

connector. 

3. Key on. 

4. Turn dimmer switch to max. 

5. Measure voltage between pin 5 

and pin 3 on the 8-way OEM harness. 



Replace Cobra Lever. Go to 

Step V. 

If voltage is outside of range Repair OEM wire between pin 5 

and dash lights. Go to Step V. 

VOLTS 

V COM A 

1 

8 

2 

7 

3 

6 

4 5 

3-97




1. Key off. 

2. Disconnect Cobra Lever 8-way 

connector. 

3. Key on. 

4. Measure voltage between pin 3 

and pin 4 on the 8-way vehicle 

harness connector. 



Replace Cobra Lever go to Step 

V. 

If voltage is out of range Go to Step F. 

VOLTS 

V COM A 

1 

8 

2 

7 

3 

6 

4 5 


3-98

V COM A 

V COM A 




1. Key off. 

2. Disconnect Negative battery 

cable. 

3. Disconnect Vehicle Harness 









ground 






are not met 

Go to Step G. 





OHMS 

Front View 


1 

2 

3 

4 

8 

7 

6 

5 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

38 

21 22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

OHMS 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

Ground 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 


3-99

V COM A 

V COM A 




1. Key off. 








ground 



resistance between 25 and ground is 


Perform Pre-Electrical Test (see 

page 2-17), if test passes replace 

transmission ECU. Go to Step V. 

OHMS 

Front View 


1 

2 

3 

4 

8 

7 

6 

5 

37 

13 14 

29 30 31 

23 24 25 

15 16 17 

32 33 34 

26 27 28 

18 19 20 

38 

21 22 

35 

7 8 9 

10 11 12 

3 

4 5 

1 2 6 

36 

OHMS 


1. Key off. 

Ground 

29 30 31 

32 33 34 

37 

38 

23 24 25 

26 27 28 

19 20 

13 14 15 16 17 

18 21 22 

7 8 9 

10 11 12 

35 

36 

3 

4 5 

1 2 6 




3. Key on. 

4. Turn on the dash lights 

fully. 

If back light works correctly 

If back lights do not work 

correctly 



testing. 

3-100

Appendix 

Connector Pin Descriptions 

Transmission Controller 38-Way (Vehicle Interface Connector) 

38-WAY Description Wire 38-Way Description Wire 

1 J1939 Shield (CAN) 18 TXL 20 MEIIR Contact 18 TXL 

2 J1939 Low (CAN) 18 TXL 21 MEIIR Minus 18 TXL 

3 J1939 High (CAN) 18 TXL 22 MEIIR Plus 18 TXL 

4 Start Enable Relay Minus 18 TXL 23 Service Light Output 18 TXL 

5 Not Used Plug 24 Not Used 18 TXL 

6 Not Used Plug 25 Shift Control Power Minus 18 TXL 

7 Not Used Plug 26 Start Enable Latch 18 TXL 

8 Not Used Plug 27 HIL Low (Proprietary CAN) 18 TXL 

9 Not Used Plug 28 HIL High (Proprietary CAN) 18 TXL 

10 J1587 Plus 18 TXL 29 Not Used Plug 

11 J1587 Minus 18 TXL 30 Not Used Plug 

12 ISO9141-K Communications 18 TXL 31 Shift Control Power Plus 18 TXL 

13 Not Used Plug 32 Start Enable Relay Plus 18 TXL 

14 Not Used Plug 33 Not Used Plug 

15 Shift Control Input (Mode Auto) 18 TXL 34 Not Used Plug 

16 Shift Control Input (Mode Manual/Neutral 

Signal) 

17 Shift Control Input (Mode Common/ 

Neutral Return) 

18 TXL 35 Ignition 12 GXL or 

14SXL 

18 TXL 36 Battery Minus 12 GXL 

18 PTO 18 TXL 37 Not Used Plug 

19 Auto Neutral AW3 18 TXL 38 Battery Plus 12 GXL 

Push button Shift Control 30-Way Connector 

30-WAY DESCRIPTION Wire 

C1 Shift Control Power Plus 16 TXL 

B3 V dash 16 TXL 

F1 HIL(+) HI 16 TXL 

F2 HIL(-) LO 16 TXL 

J3 Shift Control Power Minus 16 TXL 

A-1

Appendix 

Cobra Lever 8-way Connector 

8-WAY DESCRIPTION Wire 

1 Shift Control Input (Mode Auto) 16 TXL 

2 Shift Control Input (Mode Common) 16 TXL 

3 Shift Control Power Minus 16 TXL 

4 Shift Control Lever Power Plus 16 TXL 

5 Dash Lights 16 TXL 

6 Service Light Output 16 TXL 

8 Shift Control Input (Mode Manual) 16 TXL 

7 No Connection 16 TXL 

Transmission Controller 38-Way (Eaton Supplied Assembly) 

38-Way Description Wire 38-Way Description Wire 

1 Not Used Plug 20 Rail Position Sensor Minus 18 TXL 

2 Clutch Lube Solenoid Plus 18 TXL 21 Not Used Plug 

3 Clutch Lube Solenoid Minus 18 TXL 22 Not Used Plug 

4 Splitter Solenoid Common Minus 18 TXL 23 Output Shaft Speed Sensor High 18 TXL 

5 Inertia Brake Solenoid Minus 18 TXL 24 Output Shaft Speed Sensor Low 18 TXL 

6 Range Solenoid Common Minus 18 TXL 25 Service Ignition 18 TXL 

7 Input Shaft Speed Sensor High 18 TXL 26 Splitter Indirect Solenoid Plus 18 TXL 

8 Input Shaft Speed Sensor Low 18 TXL 27 Not Used Plug 

9 Not Used Plug 28 Range High Solenoid Plus 18 TXL 

10 Gear Position Sensor Plus 18 TXL 29 Not Used 18 TXL 

11 Gear Position Sensor Signal 18 TXL 30 Not Used 18 TXL 

12 Gear Position Sensor Minus 18 TXL 31 Service Battery Minus 18 TXL 

13 Clutch Solenoid Plus 18 TXL 32 Splitter Direct Solenoid Plus 18 TXL 

14 Clutch Solenoid Minus 18 TXL 33 Inertia Brake Solenoid Plus 18 TXL 

15 Main Shaft Speed Sensor High 18 TXL 34 Range Low Solenoid Plus 18 TXL 

16 Main Shaft Speed Sensor Low 18 TXL 35 Rail Motor Plus 14SXL 

17 Service Battery Plus 18 TXL 36 Gear Motor Plus 14SXL 

18 Rail Position Sensor Plus 18 TXL 37 Rail Motor Minus 14SXL 

19 Rail Position Sensor Signal 18 TXL 38 Gear Motor Minus 14SXL 

Connector Pin Descriptions 

A-2

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

A 

B 

Appendix 

UltraShift DM3 6-Speed Wiring Diagram with Analog Shifter 

30 AMP fuse 


Battery power 

(Non-switched power) 

run to starter or Battery 

OEM 

38 

36 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

22 

21 

20 

3 

2 

1 


Diagnostics 

B 

C 

4-way 

A 

D 

B 

C 

A 




17 

31 

25 

18 

19 

20 

10 

11 

12 

7 

8 

23 

24 

33 

5 

Output shaft 

speed sensor 

Inertia brake 

Gear select 

sensor 

Rail select 

sensor 

Input shaft 

speed sensor 

Terminating 

resistor 

Vehicle Interface Legend 


(38) = +12 volt non-switched from battery 

(35) = +12 volt switched from ignition switch 

(26) = Latch into the ECU 

(15, 16, 17, 10, 11, 3, 2, 1) = Communication from and to the TECU 

(36, 25) = Signal returns, grounds, and general OEM wiring 

(4, 21) = -12 volt relay source 

(22, 32) = +12 volt relay source 


(23) = Signal from TECU 

(20) = Signal into the TECU 

35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-3

Appendix 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

22 

21 

20 



3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 


Back side 

of gauges 

Dash lights 

or 




10 AMP fuse 

30 

86 

85 

87 

87a 

* Run to ignition 

input on Engine 

ECM 

Ignition Key Switch 

Runs to main power lead that 

feeds the ignition bus (OEM 

responsible for overcurrent 

protection on this line) 

Ignition 

Interrupt 

relay 

+12 volts 

battery 


J-1939 High 

J-1939 Low 

9-way 

Run to 


Run to start 

signal from 

igntion switch 

30 

87 

86 

85 



SAE Standard 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

Start 

enable 

relay 





or 

10 AMP 

fuse 

J-1939/11 data link 


Engine ECM 



(35, 30, 87, 87a) = +12 volt switched from ignition switch 


(15-1, 16-8, 17-2, 10-F, 11-G) = Communication from and to the TECU 

(25-3) = Signal returns, grounds, and general OEM wiring 

(4-85, 21-85) = -12 volt relay source 

(22-86, 32-86) = +12 volt relay source 

(31-4) = +12 volt switched from TECU 

(23-6) = Signal from TECU 

(20-87) = Signal into TECU 

UltraShift DM3 6-Speed 

Wiring Diagram with 

Analog Shifter 

Shield 

termination 

+ _ 

GND 

Terminating 

resistor 

A-4

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

A 

B 

Appendix 

UltraShift DM3 6-Speed Wiring Diagram with Push Button Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

22 

21 

20 

3 

2 

1 


Diagnostics 

B 

C 

4-way 

A 

D 

B 

C 

A 




17 

31 

25 

18 

19 

20 

10 

11 

12 

7 

8 

23 

24 

33 

5 

Output shaft 

speed sensor 

Inertia brake 

Gear select 

sensor 

Rail select 

sensor 

Terminating 

resistor 

Input shaft 

speed sensor 

Vehcile Interface Legend 





(27, 28, 10, 11, 3, 2, 1) = Communication from and to the TECU 






36 

38 

Gear select 

motor 

35 

37 

Rail select 

motor 

Electric 

shifter 

A-5

Appendix 




F2 F1 J3 C1 B3 


Back side 

of gauges 

Dash lights 



SAE Standard 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

22 

21 

20 



or 




10 AMP fuse 

30 

86 

85 

87 

87a 



ECM 






Ignition 

Interrupt 

relay 

+12 volts 

battery 


J-1939 High 

J-1939 Low 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

Start 

enable 

relay 





or 

10 AMP 

fuse 



Engine ECM 





(27-F2, 28-F1, 10-F, 11-G) = Communication from and to the TECU 

(25-J3) = Signal returns, grounds, and general OEM wiring 



(31-C1) = +12 volt switched from TECU 


UltraShift DM3 6-Speed 

Wiring Diagram with Push 

Button Shifter 

Shield 

termination 

+ _ 

GND 

Terminating 

resistor 

A-6

Appendix 

UltraShift AW3 6-Speed Wiring Diagram with Analog Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

3 

2 

1 


Diagnostics 

B 

C 

4-way 

A 

D 

B 

C 

A 




17 

31 

25 

18 

19 

20 

10 

11 

12 

7 

8 

23 

24 

33 

5 

2 

3 

13 

14 

Output shaft 

speed sensor 

A 

B 

C 

A 

B 

A 

B 

Inertia brake 

A 

B 

C 

Gear select 

sensor 

A 

B 

Rail select 

sensor 

Input shaft 

speed sensor 

Terminating 

resistor 








(4) = -12 volt relay source 

(32) = +12 volt relay source 



Hydraulic manifold 

Assembly 

35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-7

Appendix 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

Transmission 

ECU Connector Pins 



3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 


Back side 

of gauges 

Dash lights 




or 

10 AMP 

fuse 






+12 volts 

Battery 


J-1939 High 

J-1939 Low 



SAE Standard 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

Start 

enable 

relay 



Shield 

termination 

+ _ 

GND 

Engine ECM 

Terminating 

resistor 



(35, 30, 87) = +12 volt switched from ignition switch 








UltraShift AW3 6-Speed 

Wiring Diagram with 

Analog Shifter 

A-8

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

A 

B 

Appendix 

UltraShift AW3 6-Speed Wiring Diagram with Push Button Shifter 


30 AMP fuse 

Battery power 





OEM 

38 

36 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

3 

2 

1 


Diagnostics 

B 

C 

4-way 

A 

D 

B 

C 

A 




17 

31 

25 

18 

19 

20 

10 

11 

12 

7 

8 

23 

24 

33 

5 

2 

3 

13 

14 

Output shaft 

speed sensor 

Inertia brake 

Gear select 

sensor 

Rail select 

sensor 

Input shaft 

speed sensor 

Terminating 

resistor 











Hydraulic manifold 

Assembly 

35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-9

Appendix 




F2 F1 J3 C1 B3 


Back side 

of gauges 



SAE Standard 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

Transmission 







or 

10 AMP 

fuse 






+12 volts 

Battery 


J-1939 High 

J-1939 Low 

E D 

F 

G 

A 

C 

B 

J 

H 

F 

C 

D 

B 

F 

G 

A 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

Start 

enable 

relay 



Engine ECM 










Shield 

termination 

+ _ 

GND 

Terminating 

resistor 

UltraShift AW3 6-Speed 

Wiring Diagram with Push 

Button Shifter 

A-10

A 

B 

C 

A 

B 

A 

B 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

AutoShift 10-Speed Wiring Diagram with Analog Shifter 


30 AMP fuse 

Battery power 



OEM 

38 

36 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

3 

2 

1 

18 

19 

20 

10 

11 

12 

Gear select 

sensor 

Rail select 

sensor 

Terminating 

resistor 


Diagnostics 

B 

C 

A 

D 

B 

C 

A 

17 

31 

25 

7 

8 

15 

16 

23 

24 

6 

34 

28 

Output shaft 

speed sensor 

Main shaft 

speed sensor 

Input shaft 

speed sensor 

Range 

valve 












4-way 




35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-11

Appendix 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

Transmission 




3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 


Back side 

of gauges 

Dash lights 




or 

10 AMP 

fuse 






+12 volts 

Battery 


J-1939 High 

J-1939 Low 



SAE Standard 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

Start 

enable 

relay 



Shield 

termination 

+ _ 

GND 

Engine ECM 

Terminating 

resistor 











AutoShift 10-Speed Wiring 

Diagram with Analog 

Shifter 

A-12

A 

B 

C 

A 

B 

A 

B 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

AutoShift 10-Speed Wiring Diagram with Push Button Shifter 


30 AMP fuse 

Battery power 



OEM 

38 

36 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

3 

2 

1 


Diagnostics 

B 

C 

A 

D 

18 

19 

20 

10 

11 

12 

7 

8 

15 

16 

23 

24 

6 

34 

28 

Output shaft 

speed sensor 

Gear select 

sensor 

Main shaft 

speed sensor 

Range 

valve 

Rail select 

sensor 

Input shaft 

speed sensor 

Terminating 

resistor 











B 

C 

A 

17 

31 

25 

4-way 




35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-13

Appendix 




F2 F1 J3 C1 B3 


Back side 

of gauges 



SAE Standard 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

Transmission 







or 

10 AMP 

fuse 






+12 volts 

Battery 


J-1939 High 

J-1939 Low 

E D 

F 

G 

A 

C 

B 

J 

H 

F 

C 

D 

B 

F 

G 

A 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

Start 

enable 

relay 



Engine ECM 










Shield 

termination 

+ _ 

GND 

Terminating 

resistor 


Diagram with Push Button 

Shifter 

A-14

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

UltraShift 10-Speed Wiring Diagram with Analog Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

22 

21 

20 

3 

2 

1 

18 

19 

20 

10 

11 

12 

Gear select 

sensor 

Rail select 

sensor 


Diagnostics 

B 

C 

4-way 

A 

D 

B 

C 

A 




17 

31 

25 

7 

8 

15 

16 

23 

24 

6 

34 

28 

33 

5 

Output shaft 

speed sensor 

Main shaft 

speed sensor 

Input shaft 

speed sensor 

Range 

valve 

Inertia brake (Optional) 

Terminating 

resistor 




(35)= +12 volt switched from ignition switch 









35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-15

Appendix 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

22 

21 

20 



3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 


Back side 

of gauges 

Dash lights 

or 




10 AMP fuse 

30 

86 

85 

87 

87a 



ECM 






Ignition 

Interrupt 

relay 

+12 volts 

battery 


J-1939 High 

J-1939 Low 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 



SAE Standard 

F 

G 

C 

D 

B 

F 

G 

A 

E 

A 

D 

C 

B 

J 

H 

Start 

enable 

relay 





or 

10 AMP 

fuse 



Shield 

termination 

+ _ 

GND 

Engine ECM 

Terminating 

resistor 












UltraShift 10-Speed Wiring 


Shifter 

A-16

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

UltraShift 10-Speed Wiring Diagram with Push Button Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

22 

21 

20 

3 

2 

1 

18 

19 

20 

10 

11 

12 

Gear select 

sensor 

Rail select 

sensor 


Diagnostics 

7 

8 

15 

16 

23 

24 

Input shaft 

speed sensor 

B 

A 

Output shaft 

speed sensor 

Main shaft 

speed sensor 

Terminating 

resistor 

C 

4-way 

D 

B 

C 

A 




17 

31 

25 

6 

34 

28 

33 

5 

Range 

valve 













35 

37 

Rail select 

motor 

36 

38 

Gear select 

motor 

Electric 

shifter 

A-17

Appendix 




F2 F1 J3 C1 B3 


Back side 

of gauges 

Dash lights 



SAE Standard 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

22 

21 

20 



or 




10 AMP fuse 

30 

86 

85 

87 

87a 



ECM 






Ignition 

Interrupt 

relay 

+12 volts 

battery 


J-1939 High 

J-1939 Low 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

Start 

enable 

relay 





or 

10 AMP 

fuse 



Engine ECM 













Shifter 

Shield 

termination 

+ _ 

GND 

Terminating 

resistor 

A-18

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

B 

A 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

UltraShift 13-Speed Wiring Diagram with Analog Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

22 

21 

20 

3 

2 

1 

18 

19 

20 

10 

11 

12 

Gear select 

sensor 

Rail select 

sensor 


Diagnostics 

B 

C 

4-way 

A 

D 

B 

C 

A 

17 

31 

25 

7 

8 

15 

16 

23 

24 

6 

34 

28 

4 

32 

26 

33 

5 

Output shaft 

speed sensor 

Main shaft 

speed sensor 

Input shaft 

speed sensor 

Range 

valve 

Splitter 

valve 

Inertia brake 

Terminating 

resistor 
















35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-19

Appendix 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

22 

21 

20 



3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 

or 




Back side 

of gauges 

Dash lights 





or 

10 AMP 

fuse 

Shield 

termination 

+ _ 

GND 




10 AMP fuse 

30 

86 

85 

87 

87a 



ECM 

Engine ECM 






Terminating 

resistor 

Ignition 

Interrupt 

relay 

+12 volts 

battery 


J-1939 High 

J-1939 Low 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 



SAE Standard 

E D 

F 

G 

A 

C 

B 

J 

H 



(35, 30, 87, 87a)= +12 volt switched from ignition switch 









F 

C 

D 

B 

F 

G 

A 

Start 

enable 

relay 



Shifter 

A-20

A 

B 

C 

A 

B 

A 

B 

A 

B 

C 

B 

A 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

UltraShift 13-Speed Wiring Diagram with Push Button Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

22 

21 

20 

3 

2 

1 

18 

19 

20 

10 

11 

12 

Gear select 

sensor 

Rail select 

sensor 


Diagnostics 

7 

8 

15 

16 

23 

24 

Output shaft 

speed sensor 

Main shaft 

speed sensor 

Input shaft 

speed sensor 

Terminating 

resistor 

B A 

C D 

4-way 

B 

C 

A 

17 

31 

25 

6 

34 

28 

4 

32 

26 

33 

5 

Range 

valve 

Splitter 

valve 
















35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-21

Appendix 




F2 F1 J3 C1 B3 


Back side 

of gauges 

Dash lights 



SAE Standard 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

22 

21 

20 



or 




10 AMP fuse 

30 

86 

85 

87 

87a 



ECM 






Ignition 

Interrupt 

relay 

+12 volts 

battery 


J-1939 High 

J-1939 Low 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

Start 

enable 

relay 





or 

10 AMP 

fuse 



Shield 

termination 

+ _ 

GND 

Engine ECM 

Terminating 

resistor 













Shifter 

A-22

Appendix 

AutoShift 18-Speed Wiring Diagram with Analog Shifter 

30 AMP fuse 


Battery power 



OEM 

38 

36 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

3 

2 

1 

18 

19 

20 

10 

11 

12 

A 

B 

C 

A 

B 

C 

Gear select 

sensor 

Rail select 

sensor 


Diagnostics 

B 

C 

A 

D 

B 

C 

A 

17 

31 

25 

7 

8 

15 

16 

23 

24 

6 

34 

28 

4 

32 

26 

Output shaft 

speed sensor 

A 

B 

A 

B 

C 

B 

A 

C 

B 

A 

A 

B 

Main shaft 

speed sensor 

Input shaft 

speed sensor 

Range 

valve 

Splitter 

valve 

Terminating 

resistor 












4-way 




35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-23

Appendix 

25 

31 

15 

16 

17 

23 

35 

10 

11 

26 

32 

4 

Transmission 




3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 


Back side 

of gauges 

Dash lights 




or 

10 AMP 

fuse 






+12 volts 

Battery 


J-1939 High 

J-1939 Low 



SAE Standard 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

Start 

enable 

relay 



Shield 

termination 

+ _ 

GND 

Engine ECM 

Terminating 

resistor 













Shifter 

A-24

A 

B 

C 

A 

B 

A 

B 

C 

B 

A 

C 

B 

A 

A 

B 

C 

A 

B 

Appendix 

AutoShift 18-Speed Wiring Diagram with Push Button Shifter 


30 AMP fuse 

Battery power 



OEM 

38 

36 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

3 

2 

1 

18 

19 

20 

10 

11 

12 

Gear select 

sensor 

Rail select 

sensor 


Diagnostics 

7 

8 

15 

16 

23 

24 

Output shaft 

speed sensor 

Main shaft 

speed sensor 

Input shaft 

speed sensor 

Terminating 

resistor 

B 

C 

A 

D 

B 

C 

A 

17 

31 

25 

6 

34 

28 

4 

32 

26 

Range 

valve 

Splitter 

valve 











4-way 




35 

37 

36 

38 

Gear select 

motor 

Rail select 

motor 

Electric 

shifter 

A-25

Appendix 




F2 F1 J3 C1 B3 


Back side 

of gauges 



SAE Standard 

27 

28 

25 

31 

35 

10 

11 

26 

32 

4 

Transmission 







or 

10 AMP 

fuse 






+12 volts 

Battery 


J-1939 High 

J-1939 Low 

E D 

F 

G 

A 

C 

B 

J 

H 

C 

D 

B 

F 

G 

A 

9-way 

Run to 


Run to start 

signal from 


30 

87 

86 

85 

Start 

enable 

relay 



Shield 

termination 

+ _ 

GND 

Engine ECM 

Terminating 

resistor 

Vehicle InterfaceLegend 











Shifter 

A-26

Appendix 

Eaton Shift Lever Wiring Diagram 

3 4 1 8 2 6 5 7 

3 4 1 8 2 6 5 7 

C2 



J1 

25 

31 

15 

16 

17 

23 


Back side 

of gauges 

Dash lights 

Trans Control ECU Legend 



(15-1, 16-8, 17-2) = Communication from and to the TECU 

(25-3, 5) = Signal returns, grounds, and general OEM wiring 




Front View 


37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

FROM TO DESCRIPTION 

J1-15 C2-1 Shift Control Input (Mode Auto) 

J1-17 C2-2 Shift Control Input (Mode Common) 

J1-25 C2-3 Shift Control Power Minus 

J1-31 C2-4 Shift Control Power Plus 

C2-5 Dash Lights 

J1-23 C2-6 Service Light Output 

J1-16 C2-8 Shift Control Input (Mode Manual) 

C2-7 No Connection 

A-27

Appendix 

OEM Shift Lever Wiring Diagram 

OEM Shift Lever 



J1 

15 

16 

17 

23 

B A C 

B A C 

Service Lamp 

Connector 



(15-B, 16-A, 17-C) = Communication to and from the TECU 


Front View 


37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 


J1-15 F2-B Shift Control Input (Mode Auto) 

J1-16 F2-A Shift Control Input (Mode Manual) 

J1-17 F2-C Shift Control Input (Mode Common) 

J1-23 F3-A Service Lamp Output 

F3-B 

Ground 

OEM Shift Lever Wiring 

Diagram 

A-28

Appendix 

Eaton Push Button Wiring Diagram 






C2 

F 2 F 1 J 3 C 1 B 3 


J1 

27 

28 

25 

31 



Front View 



Front View 

Shift Control (30-Way Connector) 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

K1 

J1 

H1 

G1 

F1 

E1 

D1 

C1 

B1 

A1 

13 14 

15 16 

17 

18 19 

20 

21 

22 

K2 

J2 

H2 

G2 

F2 

E2 

D2 

C2 

B2 

A2 

35 

7 8 9 

10 11 12 

1 2 3 

4 5 6 

36 

K3 

J3 

H3 

G3 

F3 

E3 

D3 

C3 

B3 

A3 




(27-F2, 28-F1) = Communication from and to the TECU 



J1-27 C2-F2 HIL(-) LO 

J1-28 C2-F1 HIL(+) HI 

J1-25 C2-J3 Shift Control Power Minus 

J1-31 C2-C1 Shift Control Power Plus 

C2-B3 

Dimmer Control Input 

A-29

Appendix 

OEM J-1939 Shift Input Device Wiring Diagram 

OEM J-1939 Shift Device 



J1 

16 

17 



J-1939 

Battery Power (Non-switched power 

run to Battery or Starter) 

Ground 

Front View 



Switched Power 

37 

29 30 31 

23 24 25 

32 33 34 

26 27 28 

38 

13 14 

15 16 

17 

18 19 

20 

21 

22 

35 

7 8 9 

1 2 3 

10 11 12 

4 5 6 

36 


J1-16 Connector C2 Shift Control Input (Neutral Request Signal) 

J1-17 Connector C2 Shift Control Input (Neutral Request Return) 

OEM Connector C2 Shift Control Power Minus (Ground) 

OEM Connector C2 Shift Control Power Plus (Ignition) 

OEM Connector C2 Shift Control Power Plus (Battery) 

OEM J-1939 Shift Input 

Device Wiring Diagram 

OEM Connector C2 J-1939 High 

OEM Connector C2 J-1939 Low 

OEM Connector C2 J-1939 Shield 

A-30

Appendix 

Proper Clutch Operation 

When performing the test for Proper Clutch Operation, the vehicle should be in the same condition as when the problem 

occurred. For instance, if the problem only occurs when the vehicle is hot, drive the vehicle to warm it up before conducting the 

test. 

When the operator depresses the clutch pedal and shifts from neutral to drive or reverse, the Transmission ECU waits for the 

transmission input shaft speed to decrease to less than 150 RPM before shifting the transmission into gear. If the clutch is not 

disengaging completely or the clutch brake is not functioning properly, the input shift will not slow down and the transmission 

will not shift into gear. 

Check For Proper Clutch Operation 

With PC-Base Service Tool 

1. Connect ServiceRanger a PC-based Service Tool. 

2. Make sure the transmission is in neutral 

3. Start Engine. 

4. Set ServiceRanger a PC-based Service Tool to monitor input shaft speed. 

5. With Clutch pedal up (clutch engaged), compare input shaft speed and engine speed (RPM). They should be the same. 

Note: If engine speed and input shaft speeds are not the same, then perform input shaft speed sensor test and confirm proper 

clutch adjustment. 

6. Check clutch for slippage, and repair or replace as needed. 

7. Depress clutch pedal to active clutch brake. Within 2 seconds, input shaft speed should be less than 25 RPM (0 RPM is 

desired). If input shaft does not stop turning, the clutch is not disengaging completely or the clutch brake is not functioning 

properly. 

8. Check for proper clutch adjustment, adjust as necessary. 

9. Inspect clutch brake for excessive friction material wear or internal damage. Replace as necessary. 

Note: The clutch brake may have to be removed to inspect properly. 

10. If clutch adjustment is correct and clutch brake appears satisfactory, the problem may be a defective clutch. The clutch 

may require repair or replacement. Refer to the clutch manufacturer’s service information to verify a dragging clutch. 

Without ServiceRanger a PC-based Service Tool 


2. Start Engine. 

3. Let up on the clutch pedal (clutch engaged). 

4. Depress clutch pedal fully to activate clutch brake and hold for 2 seconds. 

5. Place transmission in starting gear. 

6. If starting gear display shows a solid gear (engaged), the procedure is complete. If the gear display shows a flashing 

gear (not yet engaged) continue on to number 7. 

7. If flashing gear is displayed, slowly release the clutch pedal. 

8. If flashing gear does not become solid or gear does not engage, check clutch brake for proper function and check clutch 

adjustment. 

9. If gear does not engage and clutch is adjusted properly, troubleshooting for a dragging clutch according to clutch manufacturer. 

A-31

Appendix 

Confirm Proper Clutch Adjustment and Clutch Brake Contact 

Confirm Release Bearing Travel Gap 

Use a 1/2” gauge to verify the release bearing travel gap. This gap (distance between the rear of the release bearing and the 

clutch brake) must be between 1/2” and 9/16”. 

If this dimension is incorrect, adjust the clutch per the clutch manufacturer’s instructions. 

Confirm the Free-Play gap* 

*For mechanical clutch release systems with free-play. 

Use a 1/8” gauge to verify proper free-play gap on Easy Pedal. 

If this dimension is incorrect, adjust the clutch per the clutch manufacturer’s instructions. 

Confirm Proper Clutch Brake Contact 

Insert a .010” feeler gauge between the release bearing and the clutch brake. have an assistant fully depress the clutch pedal. The 

.010” feeler gauge should be squeezed between the rear of the release bearing and the clutch brake. Have the assistant slowly let 

up the clutch pedal. The .010” feeler gauge should slide out when the clutch pedal is 1/2” to 1” above the cab floor or lower pedal 

stop. 

If the .010” feeler gauge is not adequately squeezed to prevent removal, or can be removed with the pedal less than1/2” or 

greater than 1”, Check and adjust the clutch pedal height and travel per the chassis manufacturer’s instructions. In addition, 

check the external clutch linkage for excessive wear or obstruction preventing complete travel. 

Release 

yoke 

1/8" 

Clutch 

brake 

Proper Clutch Operation 

1/2" 

A-32

Appendix 

Adapter Test Kit #J-43318 

Gray Adapters 

Gray adapter are to only used for the following connectors: 

• Vehicle interface 38-way connector 

• Transmission ECU 38-way connector 


• Speed Sensors 

• Position Sensors 



Purple Adapters 

Purple adapter are to only be used for the following connectors: 

• Motors 

• Main Power 


Adapter Pins 

Use the male adapter to test the harness pins.Use the female adapter to test the component pins. 

Harness 

Male adapters 

Female adapters 

Component 

A-33

This page intentionally left blank.

Copyright Eaton and Dana Corporation, 

2002. EATON AND DANA CORPORATION 

hereby grants its customers, vendors, or 

distributors permission to freely copy, 

reproduce and/or distribute this document 

in printed format. THIS INFORMATION IS 

NOT INTENDED FOR SALE OR RE- 

SALE, AND THIS NOTICE MUST REMAIN 

ON ALL COPIES. 

The Roadranger® System is an unbeatable combination of the best 

products from Eaton and Dana -- partnering to provide you the most 

advanced, most trouble-free drivetrain in the industry. And it's 

backed by the Roadrangers -- the most experienced, most expert, 

most accessible drivetrain consultants in the business. Visit our web 

site at www.roadranger.com. For spec'ing or service assistance, 

call 1-800-826-HELP (4357) 24 hours a day, 7 days a week, 

(Mexico: 001-800-826-HELP (4357)) for more time on the road. 

TRTS0930 

Printed in USA

Eaton Ultrashift Troubleshooting Guide

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