Nissan Murano Z51. Manual - part 1338

SRC-122

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

B1144 DIAGNOSIS SENSOR UNIT

NO

>> Replace wiring harness.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-25, "Exploded View"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-121, "DTC Logic"

.

Is DTC detected?

YES

>>  GO TO 1.

NO

>> INSPECTION END

B1145 CURTAIN MODULE RH

SRC-123

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

C

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SRC

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B1145 CURTAIN MODULE RH

Description

INFOID:0000000005513637

DTC B1145 [OPEN] CURTAIN MODULE RH

For RH side curtain air bag module, crash is judged by main “G” sensor output signal (left side:LH satellite
sensor, right side:RH satellite sensor) and Safing algorithm (left and right GP in air bag diagnosis sensor unit).

OPERATION

In case of collision whose acceleration exceeds the specified level, the ignition materials are ignited by electric
ignition system. The system burns and introduces the chemical reaction of gas generating materials to gener-
ate hot gases that flow into the air bag through a filter and expand the bag.

STRUCTURE

RH side curtain air bag module mainly consists of air bag and inflator which inflates air bag.

INSTALLATION

RH side curtain air bag module is installed on the roof side with fixed bolts.

DTC Logic

INFOID:0000000005513638

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-lll.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-124, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1145

CURTAIN MODULE RH 
[OPEN]

RH side curtain air bag module circuit is 
open

• Disconnection of wiring harness and 

open

• Internal breakdown in RH side cur-

tain air bag module

• Replace air bag diagnosis sensor 

unit

SRC-124

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

B1145 CURTAIN MODULE RH

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.
Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-159

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000005513639

With CONSULT-lll

WARNING:

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

minutes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Repair or replace wiring harness.

3.

CHECK SIDE CURTAIN AIR BAG MODULE

1.

Replace RH side curtain air bag module.

2.

Check the screen of CONSULT-lll.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

B1146 CURTAIN MODULE RH

SRC-125

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

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SRC

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B1146 CURTAIN MODULE RH

Description

INFOID:0000000005513640

DTC B1146 [VB-SHORT] CURTAIN MODULE RH

For RH side curtain air bag module, crash is judged by main “G” sensor output signal (left side:LH satellite
sensor, right side:RH satellite sensor) and Safing algorithm (left and right GP in air bag diagnosis sensor unit).

OPERATION

In case of collision whose acceleration exceeds the specified level, the ignition materials are ignited by electric
ignition system. The system burns and introduces the chemical reaction of gas generating materials to gener-
ate hot gases that flow into the air bag through a filter and expand the bag.

STRUCTURE

RH side curtain air bag module mainly consists of air bag and inflator which inflates air bag.

INSTALLATION

RH side curtain air bag module is installed on the roof side with fixed bolts.

DTC Logic

INFOID:0000000005513641

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-lll.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-126, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1146

CURTAIN MODULE RH 
[VB-SHORT]

RH side curtain air bag module circuit is 
shorted to some power supply circuit

• Disconnection of wiring harness and 

short

• Internal breakdown in RH side cur-

tain air bag module

• Internal breakdown in air bag diag-

nosis sensor unit