Nissan Quest E52. Manual - part 1150

B1137 SIDE AIR BAG MODULE LH

SRC-129

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

YES

>> GO TO 1. 

NO

>> INSPECTION END

SRC-130

< DTC/CIRCUIT DIAGNOSIS >

B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT

B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000009649955

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-130, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649956

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-130, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1138
B1139
B1140
B1141
B1142
B1143

CONTROL UNIT 

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

B1144 DIAGNOSIS SENSOR UNIT

SRC-131

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1144 DIAGNOSIS SENSOR UNIT 

DTC Logic

INFOID:0000000009649957

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-131, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649958

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-131, "DTC Logic"

.

Is DTC detected?

YES

>>  GO TO 1.

NO

>> INSPECTION END

DTC

Display contents of CON-

SULT

DTC detecting condition

Possible cause

B1144

CONTROL UNIT
[MISS INSTALLATION]

Air bag diagnosis sensor unit is malfunctioning 
or out of the specification

• Malfunction in air bag diagnosis sensor unit
• Configuration in air bag diagnosis sensor unit 

does not match the vehicles specification

SRC-132

< DTC/CIRCUIT DIAGNOSIS >

B1145 CURTAIN AIR BAG MODULE RH

B1145 CURTAIN AIR BAG MODULE RH

DTC Logic

INFOID:0000000009649959

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-132, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649960

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-132, "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-132, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1145

CURTAIN MODULE RH 
[OPEN]

Rear curtain air bag module RH circuit is 
open

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