Nissan Sentra Service Manual: 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
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 &g ...
Seat belt warning system
Seat Belt Warning System Does Not Function
1.SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp come ON?
YES >> GO TO 2.
NO >> • Check 10A fuse ...
Other materials:
Eps branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the eps control unit for damage,
bend and loose connection (unit
side and connector side).
Is the inspection result norm ...
ECU diagnosis information
Diagnosis sensor unit
DTC Index
DIAGNOSTIC CODE CHART
NOTE:
Follow the procedures in numerical order when repairing malfunctioning
parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT each time repair is finished.
If malfunction is still
observed, proceed ...
Abs branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the abs actuator and electric unit
(control unit) for damage, bend
and loose connection (unit side and connector side).
...
