Nissan Quest E52. Manual - part 848

LAN-106

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 2)]

A-BAG BRANCH LINE CIRCUIT

A-BAG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009978244

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

ASD-R BRANCH LINE CIRCUIT

LAN-107

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 2)]

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ASD-R BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009978245

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 sliding door control unit RH 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 sliding door control unit RH.

2.

Check the resistance between the sliding door control unit RH harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Replace the body No. 2 harness.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the sliding door control unit RH. Refer to 

DLK-239, "SLIDING

DOOR CONTROL UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the sliding door control unit RH. Refer to 

DLK-500, "RH : Removal and Instal-

lation"

.

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

>> Repair the power supply and the ground circuit.

Sliding door control unit RH harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

B247

10

9

Approx. 54 – 66

LAN-108

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 2)]

ASD-L BRANCH LINE CIRCUIT

ASD-L BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009978246

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 sliding door control unit LH 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 sliding door control unit LH.

2.

Check the resistance between the sliding door control unit LH harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the sliding door control unit LH branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the sliding door control unit LH. Refer to 

DLK-239, "SLIDING

DOOR CONTROL UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the sliding door control unit LH. Refer to 

DLK-500, "LH : Removal and Instal-

lation"

.

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

>> Repair the power supply and the ground circuit.

Sliding door control unit LH harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

B45

10

9

Approx. 54 – 66

LAN

IPDM-E BRANCH LINE CIRCUIT

LAN-109

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 2)]

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IPDM-E BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009978247

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).

-

IPDM E/R

-

Harness connector E105

-

Harness connector M11

-

Harness connector M77 (With automatic sliding door)

-

Harness connector B11 (With automatic sliding door)

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 IPDM E/R.

2.

Check the resistance between the IPDM E/R harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the IPDM E/R branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the IPDM E/R. Refer to 

PCS-35, "Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the IPDM E/R. Refer to 

PCS-36, "Removal and Installation"

.

YES (Past error)>>Error was detected in the IPDM E/R branch line.
NO

>> Repair the power supply and the ground circuit.

IPDM E/R harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E11

40

39

Approx. 108 – 132