Nissan Sentra. Manual - part 814

B1430, B1432 SEAT BELT PRE-TENSIONER LH

SRC-91

< DTC/CIRCUIT DIAGNOSIS >

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SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?

YES

>> Refer to 

SRC-91, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009758002

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

NOTE:

All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

2.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 3.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

3.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the harness.

4.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 5.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace the air bag diagnosis sensor unit. Refer to 

SR-28, "Removal and Installation"

.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 6.

NO

>> Clear DTC. Inspection End.

6.

SEAT BELT PRE-TENSIONER LH

1. Replace the seat belt pre-tensioner LH. Refer to 

SR-31, "Removal and Installation"

.

2. Turn ignition switch ON.

SRC-92

< DTC/CIRCUIT DIAGNOSIS >

B1430, B1432 SEAT BELT PRE-TENSIONER LH

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 7.

NO

>> Clear DTC. Inspection End.

7.

RELATED HARNESS

Replace the related harness.

>> END

B1431, B1433 SEAT BELT PRE-TENSIONER RH

SRC-93

< DTC/CIRCUIT DIAGNOSIS >

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B1431, B1433 SEAT BELT PRE-TENSIONER RH

Description

INFOID:0000000009758003

DTC B1431, B1433 SEAT BELT PRE-TENSIONER RH

The seat belt pre-tensioner RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit

will monitor for opens and shorts in detected lines to the seat belt pre-tensioner RH.

PART LOCATION

Refer to 

SRC-5, "Component Parts Location"

.

DTC Logic

INFOID:0000000009758004

DTC DETECTION LOGIC 

With CONSULT

DTC CONFIRMATION PROCEDURE (With CONSULT)

1.

CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.

2. Check for DTC using CONSULT.
Is the DTC detected?

YES (Current DTC)>>Refer to 

SRC-94, "Diagnosis Procedure"

.

YES (Past DTC)>>GO TO 2.

NO

>> Inspection End.

2.

ERASE SELF-DIAG RESULT

Erase the DTC using CONSULT.
Can the DTC be erased?

YES

>> Inspection End.

NO

>> Refer to 

SRC-94, "Diagnosis Procedure"

.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

1.

CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.

2. Check the air bag warning lamp status. Refer to 

SRC-17, "Trouble Diagnosis without CONSULT"

.

NOTE:

CONSULT name

DTC

DTC detecting condition

Repair order

FRONT PRE-TEN RH CIRCUIT 

[OPEN]

B1431

RH seat belt pre-tensioner circuit is open. 
(shoulder belt)

Refer to 

SRC-94, "Diagnosis Procedure"

.

FRONT PRE-TEN RH CIRCUIT 

[VB-SHORT]

RH seat belt pre-tensioner circuit is short-
ed to a power supply circuit. (shoulder belt)

FRONT PRE-TEN RH CIRCUIT 

[GND-SHORT]

RH seat belt pre-tensioner circuit is short-
ed to ground. (shoulder belt)

FRONT PRE-TEN RH CIRCUIT 

[SHORT]

RH seat belt pre-tensioner circuits are 
shorted to each other. (shoulder belt)

FRONT PRE-TEN2 RH CIRCUIT 

[OPEN]

B1433

RH seat belt pre-tensioner circuit is open. 
(lap belt)

FRONT PRE-TEN2 RH CIRCUIT 

[VB-SHORT]

RH seat belt pre-tensioner circuit is short-
ed to a power supply circuit. (lap belt)

FRONT PRE-TEN2 RH CIRCUIT 

[GND-SHORT]

RH seat belt pre-tensioner circuit is short-
ed to ground. (lap belt)

FRONT PRE-TEN2 RH CIRCUIT 

[SHORT]

RH seat belt pre-tensioner circuits are 
shorted to each other. (lap belt)

SRC-94

< DTC/CIRCUIT DIAGNOSIS >

B1431, B1433 SEAT BELT PRE-TENSIONER RH

SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?

YES

>> Refer to 

SRC-94, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009758005

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

NOTE:

All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

2.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 3.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

3.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the harness.

4.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 5.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace the air bag diagnosis sensor unit. Refer to 

SR-28, "Removal and Installation"

.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 6.

NO

>> Clear DTC. Inspection End.

6.

SEAT BELT PRE-TENSIONER RH

1. Replace the seat belt pre-tensioner RH. Refer to 

SR-31, "Removal and Installation"

.

2. Turn ignition switch ON.