bcm INFINITI FX35 2005 Service Manual

CAN SYSTEM (TYPE 3) LAN-169
[CAN]
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Revision: 2005 July 2005 FX
14. CHECK ECM AND IPDM E/R INTERNAL CIRCUIT
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance between ECM terminals 94 and 86.
3. Check resistance between IPDM E/R terminals 48 and 49.
OK or NG
OK >> GO TO 15.
NG >> Replace ECM and/or IPDM E/R.
15. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Connect all connectors, and then make sure that the symptom is reproduced.
OK or NG
OK >> GO TO 16.
NG >> Refer to LAN-16, "
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
16. CHECK UNIT REPRODUCIBILITY
Performs the following procedure for each unit, and then perform reproducibility test.
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the unit connector.
4. Connect the battery cable to the negative terminal.
5. Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced. (Do not confuse it with the symptom related to removed unit.)
6. Make sure that the same symptom is reproduced.
–A/T assembly
–Display control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–ECM
–IPDM E/R
Check results
Reproduce>>Install removed unit, and then check the other unit.
Not reproduced>>Replace removed unit. 94 - 86 : Approx. 108 - 132
Ω
48 - 49 : Approx. 108 - 132 Ω
LKIA0037E

LAN-190
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2005 July 2005 FX
Case 11
Check BCM circuit. Refer to LAN-206, "BCM Circuit Inspection" .
PKIB4391E
PKIB4265E

LAN-206
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Diagnose again. Refer to LAN-7, "TROUBLE DIAG-
NOSES WORK FLOW" .
NG >> Repair harness between data link connector and BCM.
BCM Circuit InspectionAKS00CE0
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check resistance between BCM harness connector M3 termi- nals 39 (L) and 40 (R).
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Repair harness between BCM and data link connector.
Steering Angle Sensor Circuit InspectionAKS00CE1
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 6 (L) - 14 (R) : Approx. 54 - 66
Ω
PKIA9865E
39 (L) - 40 (R) : Approx. 54 - 66Ω
SKIA6869E

CAN SYSTEM (TYPE 4) LAN-211
[CAN]
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Revision: 2005 July 2005 FX
CAN Communication Circuit InspectionAKS00CE8
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side, control unit side, unit side, sensor side, meter side and harness side).
–ECM
–A/T assembly
–Display control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–LDW camera unit
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–IPDM E/R
–Between ECM and IPDM E/R
–Between ECM and A/T assembly
–Between ECM and LDW camera unit
–Between ECM and driver seat control unit
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.

LAN-212
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–ECM connector
–Harness connector M82
–Display control unit connector
–ICC unit connector
–Intelligent Key unit connector
–BCM connector
–Steering angle sensor connector
–Harness connector M31
–Unified meter and A/C amp. connector
–Harness connector M41
2. Check continuity between data link connector M5 terminals 6 (L) and 14 (R).
OK or NG
OK >> GO TO 3.
NG >> Check the following harnesses. If any harness is dam- aged, repair the harness.

Harness between data link connector and ECM

Harness between data link connector and harness
connector M82

Harness between data link connector and display control unit

Harness between data link connector and ICC unit

Harness between data link connector and Intelligent Key unit

Harness between data link connector and BCM

Harness between data link connector and steering angle sensor

Harness between data link connector and harness connector M31

Harness between data link connector and unified meter and A/C amp.

Harness between data link connector and harness connector M41
6 (L) - 14 (R) : Continuity should not exist.
PKIA9865E

CAN SYSTEM (TYPE 4) LAN-213
[CAN]
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Revision: 2005 July 2005 FX
3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector M5 terminals 6 (L), 14
(R) and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following harnesses. If any harness is dam- aged, repair the harness.

Harness between data link connector and ECM

Harness between data link connector and harness
connector M82

Harness between data link connector and display control unit

Harness between data link connector and ICC unit

Harness between data link connector and Intelligent Key unit

Harness between data link connector and BCM

Harness between data link connector and steering angle sensor

Harness between data link connector and harness connector M31

Harness between data link connector and unified meter and A/C amp.

Harness between data link connector and harness connector M41
4. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect A/T assembly connector.
2. Check continuity between A/T assembly harness connector F44 terminals 3 (L) and 8 (R).
OK or NG
OK >> GO TO 5.
NG >> Repair harness between A/T assembly and harness connector F102.
5. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between A/T assembly harness connector F44 ter-
minals 3 (L), 8 (R) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness between A/T assembly and harness
connector F102.
6 (L) - Ground : Continuity should not exist.
14 (R) - Ground : Continuity should not exist.
PKIA9872E
3 (L) - 8 (R) : Continuity should not exist.
SKIA6866E
3 (L) - Ground : Continuity should not exist.
8 (R) - Ground : Continuity should not exist.
SKIA6875E

CAN SYSTEM (TYPE 4) LAN-217
[CAN]
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Revision: 2005 July 2005 FX
16. CHECK ECM AND IPDM E/R INTERNAL CIRCUIT
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance between ECM terminals 94 and 86.
3. Check resistance between IPDM E/R terminals 48 and 49.
OK or NG
OK >> GO TO 17.
NG >> Replace ECM and/or IPDM E/R.
17. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Connect all connectors, and then make sure that the symptom is reproduced.
OK or NG
OK >> GO TO 18.
NG >> Refer to LAN-16, "
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
18. CHECK UNIT REPRODUCIBILITY
Performs the following procedure for each unit, and then perform reproducibility test.
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the unit connector.
4. Connect the battery cable to the negative terminal.
5. Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced. (Do not confuse it with the symptom related to removed unit.)
6. Make sure that the same symptom is reproduced.
–A/T assembly
–Display control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–LDW camera unit
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–ECM
–IPDM E/R
Check results
Reproduce>>Install removed unit, and then check the other unit.
Not reproduced>>Replace removed unit. 94 - 86 : Approx. 108 - 132
Ω
48 - 49 : Approx. 108 - 132 Ω
LKIA0037E

LAN-236
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2005 July 2005 FX
Case 10
Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIB5937E
PKIB4249E

CAN SYSTEM (TYPE 5) LAN-249
[CAN]
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Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect AWD control unit connector.
2. Check resistance between AWD control unit harness connector M92 terminals 8 (L) and 16 (R).
OK or NG
OK >> Replace AWD control unit.
NG >> Repair harness between AWD control unit and harness
connector M82.
Data Link Connector Circuit InspectionAKS00CDD
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check data link connector and terminals for damage, bend and loose connection (connector side and har- ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Diagnose again. Refer to LAN-7, "TROUBLE DIAG-
NOSES WORK FLOW" .
NG >> Repair harness between data link connector and BCM.
BCM Circuit InspectionAKS00CDE
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 8 (L) - 16 (R) : Approx. 54 - 66
Ω
SKIA6889E
6 (L) - 14 (R) : Approx. 54 - 66Ω
PKIA9865E

LAN-250
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check resistance between BCM harness connector M3 termi- nals 39 (L) and 40 (R).
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Repair harness between BCM and data link connector.
Steering Angle Sensor Circuit InspectionAKS00CDF
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering angle sensor connector.
2. Check resistance between steering angle sensor harness con- nector M14 terminals 4 (L) and 5 (R).
OK or NG
OK >> Replace steering angle sensor.
NG >> Repair harness between steering angle sensor and data link connector.
Unified Meter and A/C Amp. Circuit InspectionAKS00CDG
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of unified meter and A/C amp. for damage, bend and loose connection (meter side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 39 (L) - 40 (R) : Approx. 54 - 66
Ω
SKIA6869E
4 (L) - 5 (R) : Approx. 54 - 66 Ω
PKIA9864E