Nissan Sentra. Manual - part 813

B1429 SEAT BELT BUCKLE SWITCH RH

SRC-87

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1429 SEAT BELT BUCKLE SWITCH RH

Description

INFOID:0000000009757997

DTC B1429 SEAT BELT BUCKLE SWITCH RH

The air bag diagnosis sensor unit monitors the seat belt buckle switch RH status. If the control unit detects an

open or short condition in the circuit, it will set the DTC.

PART LOCATION

Refer to 

SRC-5, "Component Parts Location"

.

DTC Logic

INFOID:0000000009757998

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-87, "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-87, "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:

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

YES

>> Refer to 

SRC-87, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757999

1.

HARNESS CONNECTOR

CONSULT name

DTC

DTC detecting condition

Repair order

SEAT BELT BUCKLE SW RH CIRCUIT

[OPEN]

B1429

Seat belt buckle switch RH circuit is 
open.

Refer to 

SRC-87, "Diagnosis Proce-

dure"

.

SEAT BELT BUCKLE SW RH CIRCUIT

[VB-SHORT]

Seat belt buckle switch RH circuit is 
shorted to a power supply circuit.

SEAT BELT BUCKLE SW RH CIRCUIT

[GND-SHORT]

Seat belt buckle switch RH circuit is 
shorted to ground.

SEAT BELT BUCKLE SW RH CIRCUIT

[UNDEFINED]

Seat belt buckle switch RH circuit is mal-
functioning.

SRC-88

< DTC/CIRCUIT DIAGNOSIS >

B1429 SEAT BELT BUCKLE SWITCH RH

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 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.

SEAT BELT BUCKLE SWITCH RH

1. Replace the seat belt buckle switch RH. Refer to 

SR-32, "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.

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 7.

NO

>> Clear DTC. Inspection End.

7.

RELATED HARNESS

Replace the related harness.

B1429 SEAT BELT BUCKLE SWITCH RH

SRC-89

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

>> END

SRC-90

< DTC/CIRCUIT DIAGNOSIS >

B1430, B1432 SEAT BELT PRE-TENSIONER LH

B1430, B1432 SEAT BELT PRE-TENSIONER LH

Description

INFOID:0000000009758000

DTC B1430, B1432 SEAT BELT PRE-TENSIONER LH

The seat belt pre-tensioner LH 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 LH.

PART LOCATION

Refer to 

SRC-5, "Component Parts Location"

.

DTC Logic

INFOID:0000000009758001

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-91, "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-91, "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 LH CIRCUIT 

[OPEN]

B1430

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

Refer to 

SRC-91, "Diagnosis Procedure"

.

FRONT PRE-TEN LH CIRCUIT 

[VB-SHORT]

LH seat belt pre-tensioner circuit is shorted 
to a power supply circuit. (shoulder belt)

FRONT PRE-TEN LH CIRCUIT 

[GND-SHORT]

LH seat belt pre-tensioner circuit is shorted 
to ground. (shoulder belt)

FRONT PRE-TEN LH CIRCUIT 

[SHORT]

LH seat belt pre-tensioner circuits are short-
ed to each other. (shoulder belt)

FRONT PRE-TEN2 LH CIRCUIT 

[OPEN]

B1432

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

FRONT PRE-TEN2 LH CIRCUIT 

[VB-SHORT]

LH seat belt pre-tensioner circuit is shorted 
to a power supply circuit. (lap belt)

FRONT PRE-TEN2 LH CIRCUIT 

[GND-SHORT]

LH seat belt pre-tensioner circuit is shorted 
to ground. (lap belt)

FRONT PRE-TEN2 LH CIRCUIT 

[SHORT]

LH seat belt pre-tensioner circuits are short-
ed to each other. (lap belt)