Nissan Sentra Service Manual: SRS Air bag warning lamp does not turn OFF

Nissan Sentra Service Manual / Restraints / SRS airbag control system / Symptom diagnosis / SRS Air bag warning lamp does not turn OFF

Diagnosis Procedure

1.CHECK AIR BAG MODULE AND SEAT BELT PRE-TENSIONER

Check the deployment of air bag module.

Is air bag module deployed? YES >> Replace the malfunctioning parts.

NO >> GO TO 2.

2.CHECK AIR BAG FUSE

Check 10 A fuse [No.3, located in fuse block (J/B)].

Is the inspection result normal? YES >> GO TO 3.

NO >> Replace the fuse.

3.CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal? YES >> GO TO 4.

NO >> Replace harness connectors.

4.CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal? YES >> GO TO 5.

NO >> Replace wiring harness.

5.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

Replace air bag diagnosis sensor unit. Refer to SR-28, "Removal and Installation".
Check air bag warning lamp operation.

Is the inspection result normal? YES >> INSPECTION END

NO >> GO TO 6.

6.REPLACE COMBINATION METER

Replace combination meter. Refer to MWI-77, "Removal and Installation".
Check air bag warning lamp operation.

Is the inspection result normal? YES >> INSPECTION END

NO >> GO TO 1.

Symptom diagnosis

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SRS Air bag warning lamp does not turn ON

Diagnosis Procedure 1.CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUIT Check combination meter unit power supply and ground circuit. Refer to MWI-52, "COMBINATION METER : Diagnosis Pr ...

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