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

Nissan Sentra Service Manual / Restraints / SRS airbag control system / Symptom diagnosis / 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 Procedure".

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace the malfunctioning parts.

2.CHECK HARNESS CONNECTOR

Check the harness connector.

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

NO >> Replace harness connectors.

3.CHECK WIRING HARNESS

Check the wiring harness externals.

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

NO >> Replace wiring harness.

4.CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Disconnect air bag diagnosis sensor unit connector and turn ignition switch ON.

Does air bag warning lamp turn ON? YES >> Replace air bag diagnosis sensor unit. Refer to SR-28, "Removal and Installation".

NO >> Replace combination meter. Refer to MWI-77, "Removal and Installation".

SRS Air bag warning lamp does not turn OFF
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