air INFINITI FX35 2005 Service Manual

CAN SYSTEM (TYPE 9) LAN-429
[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 unit

Harness between data link connector and BCM

Harness between data link connector and steering angle sensor

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

LAN-430
[CAN]
CAN SYSTEM (TYPE 9)
Revision: 2005 July 2005 FX
6. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector and harness connector E205.
2. Check continuity between ABS actuator and electric unit (control unit) harness connector E56 terminals 11 (L) and 15 (R).
OK or NG
OK >> GO TO 7.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between ABS actuator and electric unit (con-
trol unit) and harness connector E211

Harness between ABS actuator and electric unit (con-
trol unit) and harness connector E205
7. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector E56 terminals 11 (L), 15 (R) and ground.
OK or NG
OK >> GO TO 8.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between ABS actuator and electric unit (con-
trol unit) and harness connector E211

Harness between ABS actuator and electric unit (control unit) and harness connector E205
8. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B5 terminals 3 (L) and
10 (R).
OK or NG
OK >> GO TO 9.
NG >> Repair harness between harness connector B5 and har- ness connector B5.
9. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B5 terminals 3 (L), 10
(R) and ground.
OK or NG
OK >> GO TO 10.
NG >> Repair harness between harness connector B5 and har- ness connector B5.
11 (L) - 15 (R) : Continuity should not exist.
SKIA6872E
11 (L) - Ground : Continuity should not exist.
15 (R) - Ground : Continuity should not exist.
SKIA6876E
3 (L) - 10 (R) : Continuity should not exist.
SKIA6877E
3 (L) - Ground : Continuity should not exist.
10 (R) - Ground : Continuity should not exist.
SKIA6878E

CAN SYSTEM (TYPE 9) LAN-431
[CAN]
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Revision: 2005 July 2005 FX
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E9 ter- minals 48 (L) and 49 (R).
OK or NG
OK >> GO TO 11.
NG >> Repair harness between IPDM E/R and harness con-
nector E205.
11 . CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between IPDM E/R harness connector E9 termi-
nals 48 (L), 49 (R) and ground.
OK or NG
OK >> GO TO 12.
NG >> Repair harness between IPDM E/R and harness con- nector E205.
12. 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 13.
NG >> Replace ECM and/or IPDM E/R.
13. 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 14.
NG >> Refer to LAN-16, "
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
48 (L) - 49 (R) : Continuity should not exist.
SKIB1363E
48 (L) - Ground : Continuity should not exist.
49 (R) - Ground : Continuity should not exist.
SKIB1364E
94 - 86 : Approx. 108 - 132 Ω
48 - 49 : Approx. 108 - 132 Ω
LKIA0037E

LAN-456
[CAN]
CAN SYSTEM (TYPE 10)
Revision: 2005 July 2005 FX
Case 16
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-469, "IPDM E/R Ignition Relay
Circuit Inspection" .
Inspection Between TCM and Data Link Connector CircuitAKS00FDY
1. CHECK HARNESS FOR OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect ECM connector and harness connector M82.
4. Check continuity between harness connector M82 terminals 14H (L), 15H (R) and data link connector M5 terminals 6 (L), 14
(R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to LAN-7, "
TROUBLE DIAGNOSES WORK FLOW" .
NG >> Repair harness.
PKIC3726E
14H (L) - 6 (L) : Continuity should exist.
15H (R) - 14 (R) : Continuity should exist.
SKIA6861E

CAN SYSTEM (TYPE 10) LAN-457
[CAN]
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Revision: 2005 July 2005 FX
Inspection Between Data Link Connector and Unified Meter and A/C Amp. Cir-
cuit
AKS00FDZ
1. CHECK HARNESS FOR OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect ECM connector and unified meter and A/C amp. connector.
4. Check continuity between data link connector M5 terminals 6 (L), 14 (R) and unified meter and A/C amp. harness connector
M55 terminals 1 (L), 11 (R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to LAN-7, "
TROUBLE DIAGNOSES WORK FLOW" .
NG >> Repair harness.
Inspection Between Unified Meter and A/C Amp. and ABS Actuator and Electric
Unit (Control Unit) Circuit
AKS00FE0
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 (connector side and harness side).
–Harness connector M41
–Harness connector E211
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect unified meter and A/C amp. connector and harness connector M41.
2. Check continuity between unified meter and A/C amp. harness connector M55 terminals 1 (L), 11 (R) and harness connector
M41 terminals 15G (L), 14G (R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness. 6 (L) - 1 (L) : Continuity should exist.
14 (R) - 11 (R) : Continuity should exist.
SKIA6862E
1 (L) - 15G (L) : Continuity should exist.
11 (R) - 14G (R) : Continuity should exist.
SKIA6863E

LAN-458
[CAN]
CAN SYSTEM (TYPE 10)
Revision: 2005 July 2005 FX
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between harness connector E211 terminals 15G (L), 14G (R) and ABS actuator and electric unit (control
unit) harness connector E56 terminals 11 (L), 15 (R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to LAN-7, "
TROUBLE DIAGNOSES WORK FLOW" .
NG >> Repair harness.
ECM Circuit InspectionAKS00FE1
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of ECM 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 ECM connector.
2. Check resistance between ECM harness connector M90 termi- nals 94 (L) and 86 (R).
OK or NG
OK >> Replace ECM.
NG >> Repair harness between ECM and harness connector M82.
TCM Circuit InspectionAKS00FE2
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 and harness side).
–A/T assembly connector
–Harness connector F102
–Harness connector M82
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 15G (L) - 11 (L) : Continuity should exist.
14G (R) - 15 (R) : Continuity should exist.
SKIA6864E
94 (L) - 86 (R) : Approx. 108 - 132 Ω
PKIA9860E

CAN SYSTEM (TYPE 10) LAN-459
[CAN]
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LAN
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector.
2. Check resistance between A/T assembly harness connector F44 terminals 3 (L) and 8 (R).
OK or NG
OK >> Replace control valve with TCM.
NG >> Repair harness between A/T assembly and display unit.
Display Unit Circuit InspectionAKS00FE3
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of display unit for damage, bend and loose connection (unit side and har- ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect display unit connector.
2. Check resistance between display unit harness connector M62 terminals 14 (L) and 16 (R).
OK or NG
OK >> Replace display unit.
NG >> Repair harness between display unit and harness con- nector M82.
AWD Control Unit Circuit InspectionAKS00FE4
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of AWD control unit for damage, bend and loose connection (control unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 3 (L) - 8 (R) : Approx. 54 - 66
Ω
SKIA6866E
14 (L) - 16 (R) : Approx. 54 - 66Ω
SKIA6867E

LAN-460
[CAN]
CAN SYSTEM (TYPE 10)
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 InspectionAKS00FE5
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 InspectionAKS00FE6
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

CAN SYSTEM (TYPE 10) LAN-461
[CAN]
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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 InspectionAKS00FE7
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 InspectionAKS00FE8
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

LAN-462
[CAN]
CAN SYSTEM (TYPE 10)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect unified meter and A/C amp. connector.
2. Check resistance between unified meter and A/C amp. harness connector M55 terminals 1 (L) and 11 (R).
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Repair harness between unified meter and A/C amp.
and harness connector M41.
ABS Actuator and Electric Unit (Control Unit) Circuit InspectionAKS00FE9
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose connection (control unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check resistance between ABS actuator and electric unit (con- trol unit) harness connector E56 terminals 11 (L) and 15 (R).
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Repair harness between ABS actuator and electric unit (control unit) and harness connector E205.
IPDM E/R Circuit InspectionAKS00FEA
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 and harness side).
–IPDM E/R connector
–Harness connector E205
–Harness connector B5
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 1 (L) - 11 (R) : Approx. 54 - 66
Ω
SKIA6871E
11 (L) - 15 (R) : Approx. 54 - 66Ω
SKIA6872E