Nissan Quest E52. Manual - part 837

LAN-62

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

STRG BRANCH LINE CIRCUIT

STRG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009653558

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-40, "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.

M30

5

2

Approx. 54 – 66

LAN

A-BAG BRANCH LINE CIRCUIT

LAN-63

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

C

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A-BAG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009653559

WARNING:

Always observe the following items for preventing accidental activation.
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes

or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

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 air bag diagnosis sensor unit for damage, bend and loose con-
nection (unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the main harness.

2.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Check the air bag diagnosis sensor unit. Refer to 

SRC-38, "Work Flow"

.

Is the inspection result normal?

YES

>> Replace the main harness.

NO

>> Replace parts whose air bag system has a malfunction.

LAN-64

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

AV BRANCH LINE CIRCUIT

AV BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009653560

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).

-

AV control unit

-

Harness connector M157

-

Harness connector M46

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 AV control unit.

2.

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

-

Models without navigation system

-

Models with navigation system

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the AV control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the AV control unit. Refer to the following.
• Base audio with separate display: 

AV-213, "AV CONTROL UNIT : Diagnosis Procedure"

• BOSE audio without navigation: 

AV-367, "AV CONTROL UNIT : Diagnosis Procedure"

• BOSE audio with navigation: 

AV-580, "AV CONTROL UNIT : Diagnosis Procedure"

Is the inspection result normal?

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

• Base audio with separate display: 

AV-250, "Removal and Installation"

• BOSE audio without navigation: 

AV-404, "Removal and Installation"

• BOSE audio with navigation: 

AV-610, "Removal and Installation"

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

>> Repair the power supply and the ground circuit.

AV control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M174

81

80

Approx. 54 – 66

AV control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M180

90

74

Approx. 54 – 66

LAN

AVM BRANCH LINE CIRCUIT

LAN-65

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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AVM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009653561

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 around view monitor control unit 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 around view monitor control unit.

2.

Check the resistance between the around view monitor control unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the around view monitor control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the around view monitor control unit. Refer to 

AV-582,

"AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the around view monitor control unit. Refer to 

AV-631, "Removal and Installa-

tion"

.

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

>> Repair the power supply and the ground circuit.

Around view monitor control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M253

12

10

Approx. 54 – 66