Nissan Quest E52. Instruction — part 1159

B1201 CURTAIN AIR BAG MODULE LH

SRC-165

< DTC/CIRCUIT DIAGNOSIS >

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B1201 CURTAIN AIR BAG MODULE LH

DTC Logic

INFOID:0000000009649995

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to

SRC-15, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to

SRC-165, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649996

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to

SR-29, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to

SRC-165, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4.

NO

>> INSPECTION END

4.

REPLACE FRONT CURTAIN AIR BAG MODULE

1.

Replace front curtain air bag module LH. Refer to

SR-21, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to

SRC-165, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1201

CURTAIN MODULE
LH
[SHORT]

Front curtain air bag module LH circuits are
shorted to each other

• Disconnection of wiring harness and short
• Malfunction in front curtain air bag module LH
• Malfunction in air bag diagnosis sensor unit

SRC-166

< DTC/CIRCUIT DIAGNOSIS >

B1201 CURTAIN AIR BAG MODULE LH

NO

>> INSPECTION END

B1202, B1203, B1204, B1205, B1206, B1207 DIAGNOSIS SENSOR UNIT

SRC-167

< DTC/CIRCUIT DIAGNOSIS >

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B1202, B1203, B1204, B1205, B1206, B1207 DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000009649997

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to

SRC-15, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to

SRC-167, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649998

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to

SR-29, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to

SRC-167, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1202
B1203
B1204
B1205
B1206
B1207

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

SRC-168

< DTC/CIRCUIT DIAGNOSIS >

B1209 FRONTAL COLLISION DETECTION

B1209 FRONTAL COLLISION DETECTION

Description

INFOID:0000000009649999

The air bags and seat belt pre-tensioners for driver and passenger are activated by the air bag diagnosis sen-
sor unit signal transmitted at the time of the frontal collision.

DTC Logic

INFOID:0000000009650000

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to

SRC-15, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to

SRC-168, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009650001

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to

SR-5, "FOR FRONTAL COLLISION : When SRS is activated in a colli-

sion"

or

SR-6, "FOR FRONTAL COLLISION : When SRS is not activated in a collision"

.

>> GO TO 2.

2.

FINAL INSPECTION

Perform “AIR BAG” Self Diagnostic Result.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis of applicable DTC.Refer to

SRC-22, "DTC Index"

.

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1209

FRONTAL COLLI-
SION DETECTION

Seat belt pre-tensioner, driver side air bag and passen-
ger air bag are deployed

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