Legacy Wiring.pdf

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1. Basic Diagnostic Procedure A: BASIC PROCEDURES 1. GENERAL DESCRIPTION The most important purpose of diagnostics is to determine which part is malfunctioning quickly, to save time and labor. 2. IDENTIFICATION OF TROUBLE SYMP- TOM Determine what the problem is based on the symptom. 3. PROBABLE CAUSE OF TROUBLE Look at the wiring diagram and check the system’s circuit. Then check the switch, relay, fuse, ground, etc. 4. LOCATION AND REPAIR OF TROUBLE 1) Using the diagnostics, narrow down the causes. 2) If necessary, use a voltmeter, ohmmeter, etc. 3) Before replacing certain component parts (switch, relay, etc.), check the power supply, ground, for open wiring harness, poor connectors, etc. If no problem is encountered, check the component parts. 5. SYSTEM OPERATION CHECK After repairing, ensure that the system operates properly. B: BASIC INSPECTION 1. VOLTAGE MEASUREMENT 1) Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal and the positive lead to the connector or component terminal. 2) Contact the positive lead of the voltmeter on connector (A). The voltmeter will indicate a voltage. 3) Shift the positive lead to connector (B). The voltmeter will indicate no voltage. To power FUSE supply V (A) (B) Switch Light 4) With the test set-up held as it is, turn the switch ON. The voltmeter will indicate a voltage and, at the same time, the light will come on. Basic Diagnostic Procedure WI-00094 WI-3 WIRING SYSTEM 5) The circuit is in good order. If a problem such as a light failing to illuminate occurs, use the procedures outlined above to track down the malfunction. 2. CIRCUIT CONTINUITY CHECKS 1) Disconnect the battery terminal or connector so there is no voltage between the check points. Contact the two leads of an ohmmeter to each of the check points. If the circuit has diodes, reverse the two leads and check again. 2) Use an ohmmeter to check for diode continuity. When contacting the negative lead to the diode positive side and the positive lead to the negative side, there should be continuity. When contacting the two leads in reverse, there should be no continuity. Continuity No continuity WI-00095 3) Symbol “❍ — ❍” indicates that continuity exists between two points or terminals. For example, when a switch position is at “3”, continuity exists among terminals 1, 3 and 6, as shown in the table below. Terminal Switch Position OFF 1 2 3 4 1 2 3 4 5 6 WI-00096
WIRING SYSTEM 3. HOW TO DETERMINE AN OPEN CIR- CUIT 1) WITH VOLTMETER: An open circuit is determined by measuring the voltage between respective connectors and ground using a voltmeter, starting with the connector closest to the power supply. The power supply must be turned ON so that current flows in the circuit. If voltage is not present between a particular connector and ground, the circuit between that connector and the previous connector is open. Voltage is present 2) WITH OHMMETER: Disconnect all connectors affected, and check continuity in the wiring between adjacent connectors. When the ohmmeter indicates “infinite”, the wiring is open. Continuity exists. VV 4. HOW TO DETERMINE A SHORT CIR- CUIT 1) WITH TEST LIGHT: Connect a test light (rated at approx. 3 watts) in place of the blown fuse and allow current to flow through the circuit. Disconnect one connector at a time from the circuit. Starting with the one located farthest from the power supply. If the test light goes out when a connector is disconnected, the wiring Basic Diagnostic Procedure Open circuit or wiring No voltage is present WI-00097 Open circuit Continuity does not exist. WI-00098 WI-4 between that connector and the next connector (farther from the power supply) is shorted. Test lamp Fuse holder 2) WITH OHMMETER: Disconnect all affected connectors, and check continuity between each connector and ground. When the ohmmeter indicates continuity between a particular connector and a ground, that connector is shorted. C: HOW TO READ WIRING DIA- GRAMS 1. WIRING DIAGRAM Shorted wiring Shorted connector Continuity exists. Continuity does not exist. WI-00099 WI-00100 The wiring diagram of each system is illustrated so that you can understand the path through which the electric current flows from the battery. Sketches and codes are used in the diagrams. They should read as follows: • Each connector and its terminal position are indicated by a sketch of the connector in a disconnected state which is viewed from the front. 4 Viewed from this direction 1 3 2 4 WI-00101
Page 1 and 2: 2004 LEGACY SERVICE MANUAL QUICK RE
Page 3: WIRING SYSTEM 44. Vehicle Dynamics
Page 7 and 8: WIRING SYSTEM • In the wiring dia
Page 9 and 10: WIRING SYSTEM Basic Diagnostic Proc
Page 15 and 16: WIRING SYSTEM F: ABBREVIATION IN WI
Page 17 and 18: WIRING SYSTEM 3. Power Supply Circu
Page 19 and 20: WIRING SYSTEM P-SUP(L)-03 P-SUP(L)-
Page 21 and 22: WIRING SYSTEM P-SUP(L)-05 P-SUP(L)-
Page 23 and 24: WIRING SYSTEM No. Load FB-32 Brake
Page 25 and 26: WIRING SYSTEM P-SUP(R)-02 GENERATOR
Page 27 and 28: WIRING SYSTEM P-SUP(R)-04 FUSE & RE
Page 29 and 30: WIRING SYSTEM No. Load MB-1 ABS con
Page 31 and 32: WIRING SYSTEM 4. Ground Distributio
Page 33 and 34: WIRING SYSTEM GND(L)-03 GND(L)-01 A
Page 35 and 36: WIRING SYSTEM GND(L)-05 HIGH-MOUNTE
Page 37 and 38: WIRING SYSTEM Ground Distribution C
Page 41 and 42: WIRING SYSTEM 7. RHD CHASSIS GROUND
Page 43 and 44: WIRING SYSTEM GND(R)-03 GND(R)-02 F
Page 45 and 46: WIRING SYSTEM GND(R)-05 HIGH-MOUNTE
Page 49 and 50: WIRING SYSTEM 11.RHD ENGINE GROUND
Page 51 and 52: WIRING SYSTEM 13.RHD ENGINE GROUND
Page 53 and 54: WIRING SYSTEM A/B(L)-02 AB37 (ORANG
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WIRING SYSTEM A/B(L)-04 WC OC YR 5
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WIRING SYSTEM A/B(R)-02 AB37 (ORANG
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WIRING SYSTEM A/B(R)-04 WC OC YR 5
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WIRING SYSTEM M-A/C(L)-02 M-A/C(L)-
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WIRING SYSTEM 2. AUTO A/C LHD MODEL
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WIRING SYSTEM A-A/C(L)-03 F78 1 2 (
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WIRING SYSTEM 3. MANUAL A/C RHD MOD
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WIRING SYSTEM M-A/C(R)-03 F78 (BLAC
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WIRING SYSTEM A-A/C(R)-02 A-A/C(R)-
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WIRING SYSTEM A-A/C(R)-04 B88 1 2 G
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WIRING SYSTEM ABS(L)-02 B6 B15 R72
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WIRING SYSTEM ABS(R)-02 B6 B15 R72
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WIRING SYSTEM 8. AT Control System
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WIRING SYSTEM 4AT(L)-01 TO POWER SU
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WIRING SYSTEM 4AT(L)-03 ABS CONTROL
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WIRING SYSTEM 4AT(L)-05 1 * 2 * B35
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WIRING SYSTEM 2. LHD 5AT MODEL BATT
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WIRING SYSTEM 5AT(L)-01 TO POWER SU
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WIRING SYSTEM 5AT(L)-03 R 26 B231 1
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WIRING SYSTEM 5AT(L)-05 B359 1 2 3
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WIRING SYSTEM AT Control System 3.
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WIRING SYSTEM 4AT(RHU)-01 C26 OrB O
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WIRING SYSTEM 4AT(RHU)-03 MB-26 M/B
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WIRING SYSTEM 4AT(RHU)-05 4AT(RHU)-
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WIRING SYSTEM 4. RHD 4AT MODEL (2.5
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WIRING SYSTEM 4AT(RND)-01 TO POWER
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WIRING SYSTEM 4AT(RND)-03 MB-26 M/B
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WIRING SYSTEM 4AT(RND)-05 4AT(RND)-
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WIRING SYSTEM 5. RHD 5AT MODEL BATT
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WIRING SYSTEM 5AT(R)-01 C26 OrB TO
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WIRING SYSTEM 5AT(R)-03 B356 B357 1
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2004 LEGACY SERVICE MANUAL QUICK RE
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WIRING SYSTEM 44. Vehicle Dynamics
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2. LHD MODEL WITH SATELLITE SWITCH
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3. RHD MODEL AUDIO(R)-01 WB RY 1 2
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AUDIO(RWS)-02 SATELLITE SWITCH i95
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AUDIO(RM)-02 1 9 D12 1 2 D14 D96 1
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CAN(L)-02 B231 1 2 3 4 BY REF. TO G
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CAN(R)-02 1 * 2 * 3 * 4 * 5 * 6 * B
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12.Clock System A: WIRING DIAGRAM C
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METER-02 VDC CONTROL MODULE IGNITIO
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METER-04 METER-03 B METER-03 C DIMM
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C/C4(L)-02 R C13 B47 1 2 3 4 5 6 RE
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Cruise Control System 2. LHD 2.5 L
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C/C6(L)-03 1 * 2 * 3 * 4 * 5 * 6 *
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C/C(R20)-02 B47 1 2 3 4 5 6 R C13 R
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4. RHD 2.5 L EK AND TURBO MODEL C/C
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C/C(RTB&25)-03 1 * 2 * 3 * 4 * 5 *
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C/C(RH6)-02 B47 R D18 1 2 3 4 5 6 R
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15.Coolant Temperature System A: WI
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1 2 3 4 5 ECM 6 7 8 C7 B32 A23 A24
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E/G(LHU)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(LHU)-04 B75 B368 (GREEN) B369 (
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E/G(LHU)-06 E/G(LHU)-05 H E/G(LHU)-
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E/G(LHU)-08 E/G(LHU)-05 E/G(LHU)-06
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Engine Electrical System WI-161 WIR
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1 2 3 4 5 ECM 6 7 8 B19 D20 D29 B17
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E/G(LND)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(LND)-04 B75 B368 (GREEN) B369 (
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E/G(LND)-06 E/G(LND)-05 J E10 E15 1
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E/G(LND)-08 E/G(LND)-05 E/G(LND)-05
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1 2 3 4 5 ECM 6 7 8 9 CHECK CONNECT
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E/G(LH6)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(LH6)-04 GY P VR BL 7 4 B75 B368
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E/G(LH6)-06 B3 1 2 3 4 5 E/G(LH6)-0
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E/G(LH6)-08 E/G(LH6)-06 I E/G(LH6)-
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E/G(LH6)-10 1 2 28 PW 27 Lg LB LB A
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E/G(LH6)-12 (BLACK) (BLACK) E/G(LH6
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1 2 3 4 5 ECM 6 7 8 C7 B32 A23 A24
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E/G(RHU)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(RHU)-04 B75 B368 1 2 FB-32 F/B
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E/G(RHU)-06 E/G(RHU)-05 H E/G(RHU)-
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E/G(RHU)-08 E/G(RHU)-05 E/G(RHU)-06
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1 2 3 4 5 ECM 6 7 8 B19 D20 D29 B17
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E/G(RND)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(RND)-04 B75 E/G(RND)-03 R GY P
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E/G(RND)-06 E/G(RND)-05 J E10 E15 1
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E/G(RND)-08 E/G(RND)-05 E/G(RND)-05
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1 2 3 4 5 ECM 6 7 8 D20 D29 B18 B17
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E/G(RTB)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(RTB)-04 E/G(RTB)-03 1 2 TO POWE
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E/G(RTB)-06 E/G(RTB)-05 I E10 E14 E
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E/G(RTB)-08 E37 E38 E63 E66 1 2 27
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E/G(RTB)-10 E31 E32 B: B55 TCM E/G(
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1 2 3 4 5 ECM 6 7 8 9 D20 D29 B18 B
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E/G(RH6)-02 i97 1 2 3 4 5 6 7 8 9 1
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E/G(RH6)-04 E/G(RH6)-03 1 2 TO POWE
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E/G(RH6)-06 B3 1 2 3 4 5 E/G(RH6)-0
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E/G(RH6)-08 E/G(RH6)-06 E/G(RH6)-06
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E/G(RH6)-10 E4 1 2 E/G(RH6)-07 Q E/
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17.Fuel Gauge System A: WIRING DIAG
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2. RHD MODEL FTDR(R)-01 B29 1 2 (BL
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Headlight Beam Leveler System 20.He
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21.Horn System A: WIRING DIAGRAM HO
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2. RHD MODEL IMB(R)-01 B351 1 2 FB-
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WIRING SYSTEM WI Page 1. Basic Diag
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WIRING SYSTEM 23.Keyless Entry Syst
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WIRING SYSTEM K/L(L)-03 D46 1 2 A32
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WIRING SYSTEM K/L(ROD)-02 D18 D26 D
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WIRING SYSTEM 3. RHD MODEL WITH DOU
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WIRING SYSTEM K/L(RWD)-03 D46 1 2 A
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WIRING SYSTEM 2. RHD MODEL BACK/L(R
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WIRING SYSTEM ILLUMI(L)-02 BL 7 2 B
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WIRING SYSTEM ILLUMI(L)-04 i23 1 2
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WIRING SYSTEM ILLUMI(R)-02 BL 7 2 B
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WIRING SYSTEM ILLUMI(R)-04 ILLUMI(R
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WIRING SYSTEM 2. RHD MODEL FOG(R)-0
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WIRING SYSTEM 2. RHD MODEL H/L(R)-0
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WIRING SYSTEM C/L(L)-02 R51 R54 R56
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WIRING SYSTEM C/L(L)-04 C/L(L)-03 A
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WIRING SYSTEM C/L(R)-02 R51 R54 (BL
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WIRING SYSTEM C/L(R)-04 C/L(R)-03 A
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WIRING SYSTEM 2. RHD MODEL R/FOG(R)
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WIRING SYSTEM Turn Signal Light and
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WIRING SYSTEM 2. RHD MODEL TURN(R)-
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WIRING SYSTEM 32.Navigation System
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WIRING SYSTEM 2. RHD MODEL NAVI(R)-
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WIRING SYSTEM Oil Pressure Warning
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Parking Brake / Brake Fluid Level W
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WIRING SYSTEM 36.Power Window Syste
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WIRING SYSTEM P/W(L)-03 1 2 P/W(L)-
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WIRING SYSTEM 2. RHD MODEL P/W(R)-0
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WIRING SYSTEM P/W(R)-03 D24 (GREEN)
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WIRING SYSTEM 37.Radiator Fan Syste
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WIRING SYSTEM 38.Rear Window Defogg
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WIRING SYSTEM 39.Remote Control Mir
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WIRING SYSTEM 40.Seat Belt Warning
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WIRING SYSTEM 41.Seat Heater System
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WIRING SYSTEM 42.Starter System A:
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WIRING SYSTEM Starter System 3. RHD
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WIRING SYSTEM 43.Sunroof System A:
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WIRING SYSTEM Vehicle Dynamics Cont
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WIRING SYSTEM VDC(L)-03 TWISTED WIR
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WIRING SYSTEM VDC(R)-02 TO POWER SU
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WIRING SYSTEM Front Wiper and Washe
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WIRING SYSTEM Rear Wiper and Washer
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WIRING SYSTEM 47.Wiper Deicer Syste
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WIRING SYSTEM Rear Accessory Power
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WIRING SYSTEM 2. RHD SEDAN MODEL (1
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WIRING SYSTEM 4. RHD WAGON MODEL (1
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WIRING SYSTEM A B C D F59 F7 F3 F6
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WIRING SYSTEM A B C D Bulkhead Wiri
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WIRING SYSTEM No. B235 7 Colo r Gre
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WIRING SYSTEM 2. RHD MODEL No. Bulk
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WIRING SYSTEM A B C D B362 B98 B138
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WIRING SYSTEM A B C D Engine Wiring
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WIRING SYSTEM A B C D E67 Engine Wi
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WIRING SYSTEM A B C D i76 i102 Inst
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WIRING SYSTEM A B C D i96 i51 i98 i
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WIRING SYSTEM Rear Wiring Harness C
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WIRING SYSTEM 2. WAGON MODEL Rear W
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WIRING SYSTEM A B C D R2 *1 R1 *2 R
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WIRING SYSTEM A B C D Door Cord 1 2
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WIRING SYSTEM A B C D Door Cord 1 2
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WIRING SYSTEM A B C D Rear Wiring H
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WIRING SYSTEM A B C D AB32 R22 Rear
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