Nissan Quest E52. Manual - part 1152

B1147 CURTAIN AIR BAG MODULE RH

SRC-137

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END

SRC-138

< DTC/CIRCUIT DIAGNOSIS >

B1148 CURTAIN AIR BAG MODULE RH

B1148 CURTAIN AIR BAG MODULE RH

DTC Logic

INFOID:0000000009649965

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-138, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649966

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-138, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4. 

NO

>> INSPECTION END

4.

REPLACE REAR CURTAIN AIR BAG MODULE

1.

Replace rear curtain air bag module RH. Refer to 

SR-21, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to 

SRC-138, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1148

CURTAIN MODULE RH 
[SHORT]

Rear curtain air bag module RH circuits are 
shorted to each other

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

B1148 CURTAIN AIR BAG MODULE RH

SRC-139

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END

SRC-140

< DTC/CIRCUIT DIAGNOSIS >

B1150 CURTAIN AIR BAG MODULE LH

B1150 CURTAIN AIR BAG MODULE LH

DTC Logic

INFOID:0000000009649967

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-140, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649968

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-140, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4. 

NO

>> INSPECTION END

4.

REPLACE REAR CURTAIN AIR BAG MODULE

1.

Replace rear curtain air bag module LH. Refer to 

SR-21, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to 

SRC-140, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1150

CURTAIN MODULE LH 
[OPEN]

Rear curtain air bag module LH circuit is 
open

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