Nissan Rogue Service Manual: B1428 seat belt buckle switch IH

Nissan Rogue Service Manual / Restraints / SRS Airbag Control System / DTC/circuit diagnosis / B1428 seat belt buckle switch IH

Description

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-6, "Component Parts Location".

DTC Logic

DTC DETECTION LOGIC

With CONSULT

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-63, "Diagnosis Procedure".
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 malfunctioning.

DTC CONFIRMATION PROCEDURE (With CONSULT)

1.CHECK SELF-DIAG RESULT

Turn ignition switch ON.
Check for DTC using CONSULT.

Is the DTC detected? YES (Current DTC)>>Refer to SRC-63, "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-63, "Diagnosis Procedure".

DTC CONFIRMATION PROCEDURE (Without CONSULT)

1.CHECK SELF-DIAG RESULT

Turn ignition switch ON.
Check the air bag warning lamp status. Refer to SRC-16, "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-63, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

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

Reconnect all harness connectors.
Turn ignition switch ON.
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

Reconnect all harness connectors.
Turn ignition switch ON.
Check for DTC using CONSULT.

Is DTC still current? YES >> GO TO 5.

NO >> Refer to GI-41, "Intermittent Incident".

5.SEAT BELT BUCKLE SWITCH LH

Replace the seat buckle switch LH. Refer to SR-29, "Removal and Installation".
Turn ignition switch ON.
Check for DTC using CONSULT.

Is DTC still current? YES >> GO TO 6.

NO >> Clear DTC. Inspection End.

6.AIR BAG DIAGNOSIS SENSOR UNIT

Replace the air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation".
Turn ignition switch ON.
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

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