Nissan X-Trail 32. Manual - part 1979

SRC-84

< DTC/CIRCUIT DIAGNOSIS >

B1431 SEAT BELT PRE-TENSIONER

Diagnosis Procedure

INFOID:0000000010688510

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 for disconnection, looseness or damage.

Is the inspection result normal?

YES

>> GO TO 2.

NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace malfunctioning harness and connector.

3.

REPLACE SEAT BELT PRE-TENSIONER RH

1.

Replace seat belt pre-tensioner RH. Refer to 

SR-36, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-83, "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-38, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-83, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

B1432 LAP PRE-TENSIONER

SRC-85

< DTC/CIRCUIT DIAGNOSIS >

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B1432 LAP PRE-TENSIONER

DTC Description

INFOID:0000000010688511

POSSIBLE CAUSE

[B1432–09, B1432–1A]

• Connection malfunction or short circuit of harness and connector
• Internal malfunction of lap pre-tensioner LH
• Internal malfunction of air bag diagnosis sensor unit

[B1432–11]

• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of lap pre-tensioner LH
• Internal malfunction of air bag diagnosis sensor unit

[B1432–12]

• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of lap pre-tensioner LH
• Internal malfunction of air bag diagnosis sensor unit

[B1432–13]

• Connection malfunction or open circuit of harness and connector
• Internal malfunction of lap pre-tensioner LH
• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC 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-85, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010688512

WARNING:

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B1432–09

PRE-TEN FRONT LH 2
[front lap seat belt pre-tensioner squib left 
hand component failures (cross connection)]

Lap pre-tensioner LH circuits are shorted to each other

B1432–11

PRE-TEN FRONT LH 2
(front lap seat belt pre-tensioner squib left 
hand circuit short to GND)

Lap pre-tensioner LH circuit is shorted to ground

B1432–12

PRE-TEN FRONT LH 2
(front lap seat belt pre-tensioner squib left 
hand circuit short to battery)

Lap pre-tensioner LH circuit is shorted to power supply circuit

B1432–13

PRE-TEN FRONT LH 2
(front lap seat belt pre-tensioner squib left 
hand circuit)

Lap pre-tensioner LH circuit is open

B1432–1A

PRE-TEN FRONT LH 2
(front lap seat belt pre-tensioner squib left 
hand circuit resistance below threshold)

Lap pre-tensioner LH circuits are shorted to each other

SRC-86

< DTC/CIRCUIT DIAGNOSIS >

B1432 LAP PRE-TENSIONER

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

minutes. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector for disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2.

NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace malfunctioning harness and connector.

3.

REPLACE LAP PRE-TENSIONER LH

1.

Replace lap pre-tensioner LH. Refer to 

SR-37, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-85, "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-38, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-85, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 1. 

NO

>> INSPECTION END

B1433 LAP PRE-TENSIONER

SRC-87

< DTC/CIRCUIT DIAGNOSIS >

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B1433 LAP PRE-TENSIONER

DTC Description

INFOID:0000000010688513

POSSIBLE CAUSE

[B1433–09, B1433–1A]

• Connection malfunction or short circuit of harness and connector
• Internal malfunction of lap pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit

[B1433–11]

• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of lap pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit

[B1433–12]

• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of lap pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit

[B1433–13]

• Connection malfunction or open circuit of harness and connector
• Internal malfunction of lap pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC 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-87, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010688514

WARNING:

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B1433–09

PRE-TEN FRONT RH 2
[front lap seat belt pre-tensioner squib right 
hand component failures (cross connection)]

Lap pre-tensioner RH circuits are shorted to each other

B1433–11

PRE-TEN FRONT RH 2
(front lap seat belt pre-tensioner squib right 
hand circuit short to GND)

Lap pre-tensioner RH circuit is shorted to ground

B1433–12

PRE-TEN FRONT RH 2
(front lap seat belt pre-tensioner squib right 
hand circuit short to battery)

Lap pre-tensioner RH circuit is shorted to power supply circuit

B1433–13

PRE-TEN FRONT RH 2
(front lap seat belt pre-tensioner squib right 
hand circuit)

Lap pre-tensioner RH circuit is open

B1433–1A

PRE-TEN FRONT RH 2
(front lap seat belt pre-tensioner squib right 
hand circuit resistance below threshold)

Lap pre-tensioner RH circuits are shorted to each other