air INFINITI FX35 2005 Service Manual

CAN SYSTEM (TYPE 6) LAN-295
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
ABS Actuator and Electric Unit (Control Unit) Circuit InspectionAKS00CCW
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.
Driver Seat Control Unit Circuit InspectionAKS00CCX
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 unit side and harness side).
–Driver seat control unit connector
–Harness connector B151
–Harness connector B8
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check resistance between driver seat control unit harness con- nector B152 terminals 14 (OR) and 15 (SB).
OK or NG
OK >> Replace driver seat control unit.
NG >> Repair harness between driver seat control unit and har- ness connector B5.
11 (L) - 15 (R) : Approx. 54 - 66
Ω
SKIA6872E
14 (OR) - 15 (SB) : Approx. 54 - 66Ω
SKIA6882E

LAN-296
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2005 July 2005 FX
IPDM E/R Circuit InspectionAKS00CCY
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.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM E/R harness connector E9 ter- minals 48 (L) and 49 (R).
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness between IPDM E/R and harness con- nector B8.
48 (L) - 49 (R) : Approx. 108 - 132
Ω
SKIB1363E

CAN SYSTEM (TYPE 6) LAN-297
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
CAN Communication Circuit InspectionAKS00CCZ
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 unit
–AWD control unit
–BCM
–Steering angle sensor
–LDW camera unit
–Unified meter and A/C amp.
–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-298
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–ECM connector
–Harness connector M82
–Display unit connector
–AWD control 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 unit

Harness between data link connector and AWD control 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
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 AWD control 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
6 (L) - Ground : Continuity should not exist.
14 (R) - Ground : Continuity should not exist.
PKIA9872E

CAN SYSTEM (TYPE 6) LAN-299
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
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. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector R9 terminals 10 (L) and 5 (R).
OK or NG
OK >> GO TO 7.
NG >> Replace harness between LDW camera unit and har- ness connector R1.
7. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between LDW camera unit harness connector R9
terminals 10 (L), 5 (R) and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace harness between LDW and harness connector R1.
3 (L) - 8 (R) : Continuity should not exist.
SKIA6866E
3 (L) - Ground : Continuity should not exist.
8 (R) - Ground : Continuity should not exist.
SKIA6875E
10 (L) - 5 (R) : Continuity should not exist.
SKIB2333E
10 (L) - Ground : Continuity should not exist.
5 (R) - Ground : Continuity should not exist.
SKIB2339E

LAN-300
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2005 July 2005 FX
8. 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 9.
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
9. 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 10.
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
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect harness connector B8.
2. Check continuity between harness connector B5 terminals 3 (L) and 10 (R).
OK or NG
OK >> GO TO 11.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between harness connector B5 and harness
connector B8

Harness between harness connector B5 and harness
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

CAN SYSTEM (TYPE 6) LAN-301
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
11 . CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B5 terminals 3 (L), 10
(R) and ground.
OK or NG
OK >> GO TO 12.
NG >> Check the following harnesses. If any harness is dam- aged, repair the harness.

Harness between harness connector B5 and harness
connector B8

Harness between harness connector B5 and harness connector B5
12. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit harness con- nector B152 terminals 14 (OR) and 15 (SB).
OK or NG
OK >> GO TO 13.
NG >> Repair harness between driver seat control unit and har- ness connector B151.
13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between driver seat control unit harness connector
B152 terminals 14 (OR), 15 (SB) and ground.
OK or NG
OK >> GO TO 14.
NG >> Repair harness between driver seat control unit and har- ness connector B151.
14. 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 15.
NG >> Repair harness between IPDM E/R and harness con- nector E205.
3 (L) - Ground : Continuity should not exist.
10 (R) - Ground : Continuity should not exist.
SKIA6878E
14 (OR) - 15 (SB) : Continuity should not exist.
SKIA6882E
14 (OR) - Ground : Continuity should not exist.
15 (SB) - Ground : Continuity should not exist.
SKIA6883E
48 (L) - 49 (R) : Continuity should not exist.
SKIB1363E

LAN-302
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2005 July 2005 FX
15. 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 16.
NG >> Repair harness between IPDM E/R and harness con- nector E205.
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"
.
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

CAN SYSTEM (TYPE 7) LAN-333
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
Case 21
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-350, "IPDM E/R Ignition Relay
Circuit Inspection" .
Inspection Between TCM and Data Link Connector CircuitAKS00CBU
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.
PKIB4380E
14H (L) - 6 (L) : Continuity should exist.
15H (R) - 14 (R) : Continuity should exist.
SKIA6861E

LAN-334
[CAN]
CAN SYSTEM (TYPE 7)
Revision: 2005 July 2005 FX
Inspection Between Data Link Connector and Unified Meter and A/C Amp. Cir-
cuit
AKS00CBV
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
AKS00CBW
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