Nissan Versa Note. Manual - part 748

B1430 SEAT BELT PRE-TENSIONER

SRC-55

< DTC/CIRCUIT DIAGNOSIS >

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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-41, "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-41, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

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

SR-29, "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-32, "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.

>> END

SRC-56

< DTC/CIRCUIT DIAGNOSIS >

B1431 SEAT BELT PRE-TENSIONER

B1431 SEAT BELT PRE-TENSIONER

DTC Logic

INFOID:0000000009561038

DTC DETECTION LOGIC

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-56, "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-56, "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-14, "On Board Diagnosis Function"

.

NOTE:

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

YES

>> Refer to 

SRC-56, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009561039

1.

HARNESS CONNECTOR

Check the harness connector for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection
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.

CONSULT name

DTC

DTC detecting condition

Repair order

FRONT PRE-TEN RH CIRCUIT 

[OPEN]

B1431

RH seat belt pre-tensioner circuit is open.

Refer to 

SRC-56, "Diagnosis Procedure"

.

FRONT PRE-TEN RH CIRCUIT 

[VB-SHORT]

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

FRONT PRE-TEN RH CIRCUIT 

[GND-SHORT]

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

FRONT PRE-TEN RH CIRCUIT 

[SHORT]

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

B1431 SEAT BELT PRE-TENSIONER

SRC-57

< DTC/CIRCUIT DIAGNOSIS >

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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-41, "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-41, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

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

SR-29, "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-32, "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.

>> END

SRC-58

< DTC/CIRCUIT DIAGNOSIS >

B1428 SEAT BELT BUCKLE SWITCH LH

B1428 SEAT BELT BUCKLE SWITCH LH

Description

INFOID:0000000009761240

DTC B1428 SEAT BELT BUCKLE SWITCH LH

The air bag diagnosis sensor unit monitors the seat belt buckle switch LH 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:0000000009761241

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-58, "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-58, "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-14, "On Board Diagnosis Function"

.

NOTE:

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

YES

>> Refer to 

SRC-58, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009761242

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

CONSULT name

DTC

DTC detecting condition

Repair order

SEAT BELT BUCKLE SW LH CIRCUIT

[OPEN]

B1428

Seat belt buckle switch LH circuit is 
open.

Refer to 

SRC-58, "Diagnosis Proce-

dure"

.

SEAT BELT BUCKLE SW LH CIRCUIT

[VB-SHORT]

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

SEAT BELT BUCKLE SW LH CIRCUIT

[GND-SHORT]

Seat belt buckle switch LH circuit is 
shorted to ground.

SEAT BELT BUCKLE SW LH CIRCUIT

[UNDEFINED]

Seat belt buckle switch LH circuit is mal-
functioning.