Infiniti F50. Manual - part 625

 

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Infiniti F50. Manual - part 625

 

 

CAN SYSTEM (FOR VDC MODELS)

LAN-29

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

CHECK SHEET RESULTS (EXAMPLE)

PKIA0296E

LAN-30

[CAN]

CAN SYSTEM (FOR VDC MODELS)

INSPECTION

Proceed trouble diagnosis according to the check sheet results (example).
Case 1: Replace ECM.
Case 2: Replace VDC/TCS/ABS control unit.
Case 3: Replace TCM.
Case 4: Check harness between VDC/TCS/ABS control unit and steering angle sensor. Refer to 

LAN-30, "Cir-

cuit Check Between VDC/TCS/ABS Control Unit and Steering Angle Sensor"

 .

Case 5: Check harness between steering angle sensor and combination meter. Refer to 

LAN-32, "Circuit

Check Between Steering Angle Sensor and Combination Meter"

 .

Case 6: Check ECM circuit. Refer to 

LAN-33, "ECM Circuit Check"

 .

Case 7: Check VDC/TCS/ABS control unit circuit. Refer to 

LAN-33, "VDC/TCS/ABS Control Unit Circuit

Check"

 .

Case 8: Check steering angle sensor circuit. Refer to 

LAN-34, "Steering Angle Sensor Circuit Check"

 .

Case 9: Check combination meter circuit. Refer to 

LAN-34, "Combination Meter Circuit Check"

 .

Case 10: Check TCM circuit. Refer to 

LAN-35, "TCM Circuit Check"

 .

Case 11: Check CAN communication circuit. Refer to 

LAN-35, "CAN Communication Circuit Check"

 .

Circuit Check Between VDC/TCS/ABS Control Unit and Steering Angle Sensor

EKS003LB

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check following terminals and connector for damage, bend and loose connection.(control unit-side, sen-
sor-side and harness-side)

VDC/TCS/ABS control unit.

Steering angle sensor.

Between VDC/TCS/ABS control unit and steering angle sensor.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

PKIA0297E

CAN SYSTEM (FOR VDC MODELS)

LAN-31

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect VDC/TCS/ABS control unit connector and harness connector E224.

2.

Check continuity between VDC/TCS/ABS control unit harness
connector E218 terminals 61 (LG/B), 63 (P/B) and harness con-
nector E224 terminals 6 (LG/B), 5 (P/B).

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness.

3. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect harness connector B263.

2.

Check continuity between harness connector B204 terminals 6
(LG/B), 5 (P/B) and harness connector B263 terminals 9 (LG/B),
8 (P/B).

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness.

4. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect harness connector B6.

2.

Check continuity between harness connector B63 terminals
9(LG/B), 8 (P/B) and harness connector B6 terminals 23(LG/B),
24 (P/B).

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness.

61 (LG/B) – 6 (LG/B)

: Continuity should exist.

63 (P/B) – 5 (P/B)

: Continuity should exist.

SKIA3773E

6 (LG/B) – 9 (LG/B) 

: Continuity should exist.

5 (P/B) – 8 (P/B) 

: Continuity should exist.

SKIA3774E

9(LG/B) – 23(LG/B) 

: Continuity should exist.

8(P/B) – 24(P/B) 

: Continuity should exist.

PKIA0276E

LAN-32

[CAN]

CAN SYSTEM (FOR VDC MODELS)

5. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect steering angle sensor connector.

2.

Check continuity between harness connector M6 terminals
23(LG/B), 24 (P/B) and steering angle sensor harness connec-
tor M52 terminals 4 (LG/B), 5 (P/B).

OK or NG

OK

>> Reconnect all connectors to perform “SELF-DIAG 

RESULTS” and “DATA MONITOR” for “ENGINE”, “A/T”, 
and “VDC”. Refer to the following:

EC-141, "DTC U1000, U1001 CAN COMMUNICA-
TION LINE"

 for “ENGINE”

AT-99, "DTC U1000 CAN COMMUNICATION LINE"

 for “A/T”

BRC-58, "Inspection 16 CAN Communications Lines, VDC/TCS/ABS Control Unit and Steering
Angle Sensor System"

 for “VDC”

NG

>> Repair harness.

Circuit Check Between Steering Angle Sensor and Combination Meter

EKS003LC

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check following terminals and connector for damage, bend and loose connection. (sensor-side, meter-
side and harness-side)

Steering angle sensor.

Combination meter.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect ECM connector, steering angle sensor connector and combination meter connector.

2.

Check continuity between steering angle sensor harness con-
nector M52 terminals 4 (LG/B), 5 (P/B) and combination meter
harness connector M41 terminals 15(LG/B), 16 (P/B).

OK or NG

OK

>> Reconnect all connectors to perform “SELF-DIAG 

RESULTS” and “DATA MONITOR” for “ENGINE”, “A/T”, 
and “VDC”. Refer to the following:

EC-141, "DTC U1000, U1001 CAN COMMUNICA-
TION LINE"

 for “ENGINE”

AT-99, "DTC U1000 CAN COMMUNICATION LINE"

 for “A/T”

BRC-58, "Inspection 16 CAN Communications Lines, VDC/TCS/ABS Control Unit and Steering
Angle Sensor System"

 for “VDC”

NG

>> Repair harness.

23(LG/B) – 4(LG/B) 

: Continuity should exist.

24(P/B) – 5(P/B) 

: Continuity should exist.

SKIA3775E

4(LG/B) – 15(LG/B) 

: Continuity should exist.

5(P/B) – 16(P/B) 

: Continuity should exist.

SKIA3776E

 

 

 

 

 

 

 

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