Infiniti G35 (V35). Manual - part 578

LAN-72

[CAN]

TROUBLE DIAGNOSIS

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of VDC/TCS/ABS control unit.

2.

Check the resistance between the VDC/TCS/ABS control unit harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the VDC/TCS/ABS control unit branch line.

3. 

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the VDC/TCS/ABS control unit. Refer to 

BRC-14, "Sche-

matic"

  .

OK or NG

OK

>>

●

Present error: Replace the VDC/TCS/ABS control unit. Refer to 

BRC-59, "VDC/TCS/ABS

CONTROL UNIT"

  . 

●

Past error: Error was detected in the VDC/TCS/ABS control unit branch line.

NG

>> Repair the power supply and the ground circuit.

Intelligent Key Unit Branch Line Circuit

NKS004ID

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection
(unit side and connector side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of Intelligent Key unit.

2.

Check the resistance between the Intelligent Key unit harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the Intelligent Key unit branch line.

3. 

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the Intelligent Key unit. Refer to 

BL-95, "Schematic"

  .

OK or NG

OK

>>

●

Present error: Replace the Intelligent Key unit. Refer to 

BL-157, "Removal and Installation of

Intelligent Key Unit"

  .

●

Past error: Error was detected in the Intelligent Key unit branch line.

NG

>> Repair the power supply and the ground circuit.

VDC/TCS/ABS control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M93

61

63

Approx. 54 – 66

Intelligent Key unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M75

2

3

Approx. 54 – 66

TROUBLE DIAGNOSIS

LAN-73

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

BCM Branch Line Circuit

NKS004IF

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and
connector side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of BCM.

2.

Check the resistance between the BCM harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the BCM branch line.

3. 

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the BCM. Refer to 

BCS-11, "Schematic"

  .

OK or NG

OK

>>

●

Present error: Replace the BCM. Refer to 

BCS-16, "Removal and Installation of BCM"

  . 

●

Past error: Error was detected in the BCM branch line.

NG

>> Repair the power supply and the ground circuit.

Data Link Connector Branch Line Circuit

NKS004IH

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the data link connector for damage, bend and loose connection
(connector side and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

BCM harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M1

39

40

Approx. 54 – 66

LAN-74

[CAN]

TROUBLE DIAGNOSIS

2. 

CHECK HARNESS FOR OPEN CIRCUIT

Check the resistance between the data link connector terminals.

OK or NG

OK

>>

●

Present error: Check the following items again.

–

Decision of CAN system type.

–

Not received CONSULT-II data (SELECT SYSTEM, SELF-DIAG RESULTS, CAN DIAG SUP-
PORT MNTR).

–

Procedure for detecting root cause.

●

Past error: Error was detected in the data link connector branch line circuit.

NG

>> Repair the data link connector branch line.

Combination Meter Branch Line Circuit

NKS004IJ

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the combination meter for damage, bend and loose connection
(unit side and connector side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of combination meter.

2.

Check the resistance between the combination meter harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the combination meter branch line.

3. 

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the combination meter. Refer to 

DI-11, "Wiring Diagram —

METER —"

  .

OK or NG

OK

>>

●

Present error: Replace the combination meter. Refer to 

DI-19, "Removal and Installation for

Combination Meter"

  .

●

Past error: Error was detected in the combination meter branch line.

NG

>> Repair the power supply and the ground circuit.

Data link connector

Resistance (

Ω

)

Connector No.

Terminal No.

M8

6

14

Approx. 54 – 66

Combination meter harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M19

4

5

Approx. 54 – 66

TROUBLE DIAGNOSIS

LAN-75

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

Steering Angle Sensor Branch Line Circuit

NKS004IK

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection
(unit side and connector side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of steering angle sensor.

2.

Check the resistance between the steering angle sensor harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the steering angle sensor branch line.

3. 

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the steering angle sensor. Refer to 

BRC-14, "Schematic"

  .

OK or NG

OK

>>

●

Present error: Replace the steering angle sensor. Refer to 

BRC-63, "STEERING ANGLE SEN-

SOR"

  .

●

Past error: Error was detected in the steering angle sensor branch line.

NG

>> Repair the power supply and the ground circuit.

Driver Seat Control Unit Branch Line Circuit

NKS004IE

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).

–

Driver seat control unit connector

–

Harness connector B351

–

Harness connector B7

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

Steering angle sensor harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M22

4

5

Approx. 54 – 66