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:
Squeak and rattle trouble diagnoses
Work Flow
Customer interview
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the diagnostic
worksheet during the interview to document the facts and conditions when the
noise occurs and any
customer's comments; refer to rf-37, "d ...
Periodic maintenance
Road wheel
Inspection
ALUMINUM WHEEL
Check tires for wear and improper inflation.
Check wheels for deformation, cracks and other damage. If deformed,
remove wheel and check wheel
runout.
Remove tire from aluminum wheel and mount wheel on a balancer machine.
Set dial indicator as ...
A-bag branch line circuit
Diagnosis procedure
Warning:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch off, disconnect battery
negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
Never use unspecified tester or other ...