Nissan Qashqai J11. Manual - part 1027

SRC-46

< DTC/CIRCUIT DIAGNOSIS >

B0010 PASSENGER AIR BAG MODULE

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 PASSENGER AIR BAG MODULE

1.

Replace passenger air bag module. Refer to 

SR-19, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to 

SRC-45, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 4.

NO

>> INSPECTION END

4.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-28, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-45, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

B0020 SIDE AIR BAG MODULE

SRC-47

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

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A

B

SRC

N

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P

B0020 SIDE AIR BAG MODULE

DTC Description

INFOID:0000000010431042

DTC DETECTION LOGIC

POSSIBLE CAUSE

[B0020–09, B0020–1A]

• Connection malfunction or short circuit of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

[B0020–11]

• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

[B0020–12]

• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

[B0020–13]

• Connection malfunction or open circuit of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

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.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-47, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010431043

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?

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B0020–09

SIDE A/B MODULE LH 
[Left Side Airbag Deployment Control (Sub-
fault)]

Side air bag module LH circuits are shorted to each other

B0020–11

Side air bag module LH circuit is shorted to ground

B0020–12

Side air bag module LH circuit is shorted to power supply circuit

B0020–13

Side air bag module LH circuit is open

B0020–1A

Side air bag module LH circuits are shorted to each other

SRC-48

< DTC/CIRCUIT DIAGNOSIS >

B0020 SIDE AIR BAG MODULE

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 SIDE AIR BAG MODULE LH

1.

Replace side air bag module LH. Refer to 

SR-23, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-47, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 4. 

NO

>> INSPECTION END

4.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-28, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-47, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 1. 

NO

>> INSPECTION END

B0021 CURTAIN AIR BAG MODULE

SRC-49

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B0021 CURTAIN AIR BAG MODULE

DTC Description

INFOID:0000000010431044

DTC DETECTION LOGIC

POSSIBLE CAUSE

[B0021–13]

• Connection malfunction or open circuit of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

[B0021–12]

• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

[B0021–11]

• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

[B0021–09, B0021–1A]

• Connection malfunction or short circuit of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

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.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-49, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010431045

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?

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B0021–09

CURTAIN A/B MODULE LH 
[Left Curtain Deployment Control 1 (Subfault)]

Curtain air bag module LH circuits are shorted to each other

B0021–11

Curtain air bag module LH circuit is shorted to ground

B0021–12

Curtain air bag module LH circuit is shorted to power supply circuit

B0021–13

Curtain air bag module LH circuit is open

B0021–1A

Curtain air bag module LH circuits are shorted to each other