Nissan Qashqai (2007-2010). Manual - part 814

B1146 CURTAIN MODULE RH

SRC-143

< COMPONENT DIAGNOSIS >

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B1146 CURTAIN MODULE RH

Description

INFOID:0000000001069888

DTC B1146 [VB-SHORT] CURTAIN MODULE RH

For curtain air bag, crash is judged by main “G” sensor output signal (left side: left satellite sensor, right side:
right  satellite sensor) and sub “G” sensor (right and left GP in center 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

Curtain air bag module mainly consists of air bag and inflator which inflates air bag.

INSTALLATION

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

DTC Logic

INFOID:0000000001069889

DTC DETECTION LOGIC

With CONSULT-III

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

Without CONSULT-III

Warning Lamp Flash Code Chart

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

CONSULT-III

Check the “SELF-DIAG” RESULT with CONSULT-III.

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.

1.

Visually check the wiring harness-
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace RH side curtain air bag 
module.

4.

Replace diagnosis sensor unit 
(ACU).

JMHIA0043GB

SRC-144

< COMPONENT DIAGNOSIS >

B1146 CURTAIN MODULE RH

>> GO TO 3.

3.

DTC CODE.

If DTC is detected. Refer to 

SRC-144

>> END

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

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

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

USER MODE-DIAG MODE

After air bag warning lamp illuminates for 7 seconds, turn ignition switch OFF within 1 second.

>> GO TO 3.

3.

USER MODE-DIAG MODE

Wait more than 3 seconds.

>> GO TO 4.

4.

USER MODE-DIAG MODE

Repeat step 1 to 3 twice. (Perform three times in all.)

>> GO TO 5.

5.

DIAG MODE

Turn ignition switch ON. (SRS is now in diagnosis mode.)

>> GO TO 6.

6.

DIAG MODE (AIR BAG WARNING LAMP)

Malfunctioning portion is indicated according to blinking times of air bag warning lamp. Refer to 

SRC-144

>> END

Diagnosis Procedure (Component diagnosis)

INFOID:0000000001069890

B1146 CURTAIN MODULE RH

SRC-145

< COMPONENT DIAGNOSIS >

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D

E

F

G

I

J

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L

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B

SRC

N

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With CONSULT-III

CAUTION:

• Before servicing, turn ignition switch OFF, disconnect both battery terminals and wait at least 3 min-

utes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device.

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Are connections of harness connectors and terminals correct?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Is the outside of wiring harness normal, without any damage?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

CHECK SIDE CURTAIN AIR BAG MODULE

Is “AIR BAG” displayed on CONSULT-III?

YES

>> Replace side curtain air bag module.

NO

>> Replace diagnosis sensor unit (ACU).

SRC-146

< COMPONENT DIAGNOSIS >

B1147 CURTAIN MODULE RH

B1147 CURTAIN MODULE RH

Description

INFOID:0000000001069891

DTC B1147 [GND-SHORT] CURTAIN MODULE RH

For curtain air bag, crash is judged by main “G” sensor output signal (left side: left satellite sensor, right side:
right  satellite sensor) and sub “G” sensor (right and left GP in center 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

Curtain air bag module mainly consists of air bag and inflator which inflates air bag.

INSTALLATION

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

DTC Logic

INFOID:0000000001069892

DTC DETECTION LOGIC

With CONSULT-III

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

Without CONSULT-III

Warning Lamp Flash Code Chart

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

CONSULT-III

Check the “SELF-DIAG” RESULT with CONSULT-III.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1147

CURTAIN MODULE RH 
[GND-SHORT]

RH curtain air bag module circuit is 
shorted to ground.

1.

Visually check the wiring harness-
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace RH curtain air bag mod-
ule.

4.

Replace diagnosis sensor unit 
(ACU).

JMHIA0043GB