Infiniti EX35. Manual - part 998

LAN

4WD BRANCH LINE CIRCUIT

LAN-51

< COMPONENT DIAGNOSIS >

[CAN]

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4WD BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003137647

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).

-

AWD control unit

-

Harness connector F103

-

Harness connector M116

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of AWD control unit.

2.

Check the resistance between the AWD control unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the AWD control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the AWD control unit. Refer to 

DLN-21, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES (Present error)>>Replace the AWD control unit. Refer to 

DLN-44, "Removal and Installation"

.

YES (Past error)>>Error was detected in the AWD control unit branch line.
NO

>> Repair the power supply and the ground circuit.

AWD control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

F108

8

16

Approx. 54 – 66

LAN-52

< COMPONENT DIAGNOSIS >

[CAN]

BCM BRANCH LINE CIRCUIT

BCM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003137650

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).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> 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.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> 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-41, "Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the BCM. Refer to 

BCS-84, "Removal and Installation"

.

YES (Past error)>>Error was detected in the BCM branch line.
NO

>> Repair the power supply and the ground circuit.

BCM harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M122

91

90

Approx. 54 – 66

LAN

DLC BRANCH LINE CIRCUIT

LAN-53

< COMPONENT DIAGNOSIS >

[CAN]

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DLC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003137653

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).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

Check the resistance between the data link connector terminals.

Is the measurement value within the specification?

YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the data link connector branch line circuit.
NO

>> Repair the data link connector branch line.

Data link connector

Resistance (

Ω

)

Connector No.

Terminal No.

M24

6

14

Approx. 54 – 66

LAN-54

< COMPONENT DIAGNOSIS >

[CAN]

M&A BRANCH LINE CIRCUIT

M&A BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003137654

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 unified meter and A/C amp. for damage, bend and loose con-
nection (unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of unified meter and A/C amp.

2.

Check the resistance between the unified meter and A/C amp. harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the unified meter and A/C amp. branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the unified meter and A/C amp. Refer to 

MWI-53, "UNIFIED

METER AND A/C AMP. : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the unified meter and A/C amp. Refer to 

MWI-163, "Removal and Installa-

tion"

.

YES (Past error)>>Error was detected in the unified meter and A/C amp. branch line.
NO

>> Repair the power supply and the ground circuit.

Unified meter and A/C amp. harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M67

56

72

Approx. 54 – 66