INFINITI FX35 2005 Service Manual

LAN-82
[CAN]
CAN SYSTEM (TYPE 1)
Revision: 2005 July 2005 FX
10. 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 11.
NG >> Repair harness between driver seat control unit and har-
ness connector B151.
11 . 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 12.
NG >> Repair harness between driver seat control unit and har- ness connector B151.
12. 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 13.
NG >> Repair harness between IPDM E/R and harness con- nector E205.
13. 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 14.
NG >> Repair harness between IPDM E/R and harness con- nector E205.
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
48 (L) - Ground : Continuity should not exist.
49 (R) - Ground : Continuity should not exist.
SKIB1364E

CAN SYSTEM (TYPE 1) LAN-83
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
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 unit
–BCM
–Steering angle sensor
–Unified meter and A/C amp.
–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-84
[CAN]
CAN SYSTEM (TYPE 1)
Revision: 2005 July 2005 FX
IPDM E/R Ignition Relay Circuit InspectionAKS00CG4
Check the following. If no malfunction is found, replace the IPDM E/R.

IPDM E/R power supply circuit. Refer to PG-28, "IPDM E/R Power/Ground Circuit Inspection" .

Ignition power supply circuit. Refer to PG-12, "IGNITION POWER SUPPLY - IGNITION SW. IN “ON”
AND/OR “START”" .

CAN SYSTEM (TYPE 2) LAN-85
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
CAN SYSTEM (TYPE 2)PFP:23710
Component Parts and Harness Connector LocationAKS00CEY
PKIB5967E

LAN-86
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2005 July 2005 FX
SchematicAKS00CEZ
TKWM2351E

CAN SYSTEM (TYPE 2) LAN-87
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
Wiring Diagram - CAN -AKS00CF0
TKWM2352E

LAN-88
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2005 July 2005 FX
TKWM2353E

CAN SYSTEM (TYPE 2) LAN-89
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
TKWM2354E

LAN-90
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2005 July 2005 FX
Check SheetAKS00CF1
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIB4356E

CAN SYSTEM (TYPE 2) LAN-91
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2005 July 2005 FX
PKIB5984E