Nissan Pathfinder. Manual — part 812

LAN

HVAC BRANCH LINE CIRCUIT

LAN-201

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

C

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HVAC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009175090

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 A/C auto amp. 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 A/C auto amp.

2. Check the resistance between the A/C auto amp. harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the A/C auto amp. branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

HAC-112, "A/C AUTO AMP. :

Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the A/C auto amp. Refer to

HAC-157, "Removal and Installation"

.

YES (Past error)>>Error was detected in the A/C auto amp. branch line.

NO

>> Repair the power supply and the ground circuit.

A/C auto amp. harness connector

Resistance (

Ω)

Connector No.

Terminal No.

M50

1

21

Approx. 54 – 66

LAN-202

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

M&A BRANCH LINE CIRCUIT

M&A BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009175091

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).

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 combination meter.

2. Check the resistance between the combination meter harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> 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

MWI-59, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the combination meter. Refer to

MWI-82, "Removal and Installation"

.

YES (Past error)>>Error was detected in the combination meter branch line.

NO

>> Repair the power supply and the ground circuit.

Combination meter harness connector

Resistance (

Ω)

Connector No.

Terminal No.

M24

39

38

Approx. 54 – 66

LAN

STRG BRANCH LINE CIRCUIT

LAN-203

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

C

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STRG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009175092

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).

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 steering angle sensor.

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

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> 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-44, "Wiring Dia-

gram"

.

Is the inspection result normal?

YES (Present error)>>Replace the steering angle sensor. Refer to

BRC-126, "Removal and Installation"

.

YES (Past error)>>Error was detected in the steering angle sensor branch line.

NO

>> Repair the power supply and the ground circuit.

Steering angle sensor harness connector

Resistance (

Ω)

Connector No.

Terminal No.

M54

5

2

Approx. 54 – 66

LAN-204

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

4WD BRANCH LINE CIRCUIT

4WD BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009175093

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).

-

4WD control unit

-

CAN gateway (Models with around view monitor)

Is the inspection result normal?

YES-1 >> Models with around view monitor: GO TO 2.

YES-2 >> Models without around view monitor: GO TO 3.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of CAN gateway.

2. Check the continuity between the CAN gateway harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check the harness and repair the root cause (CAN communication circuit 2 side).

3.

CHECK HARNESS FOR OPEN CIRCUIT

1. Connect the connector of CAN gateway. (Models with around view monitor)

2. Disconnect the connector of 4WD control unit.

3. Check the resistance between the 4WD control unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 4.

NO

>> Repair the 4WD control unit branch line.

4.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the 4WD control unit. Refer to

DLN-60, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES (Present error)>>Replace the 4WD control unit. Refer to

DLN-72, "Removal and Installation"

.

YES (Past error)>>Error was detected in the 4WD control unit branch line.

NO

>> Repair the power supply and the ground circuit.

CAN gateway harness connector

Continuity

Connector No.

Terminal No.

M5

4

6

Existed

10

12

Existed

4WD control unit harness connector

Resistance (

Ω)

Connector No.

Terminal No.

B67

8

16

Approx. 54 – 66