Nissan Sentra manuals

Nissan Sentra Service Manual: 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 [No. 8, located in the fuse block (J/B)].

2.SEAT BELT BUCKLE (DRIVER SEAT)

Fasten the seat belt buckle (driver seat).

Does the seat belt warning lamp go OFF? YES >> GO TO 3.

NO >> • Check seat belt buckle switch (driver seat).

• Check harness between combination meter and seat belt buckle switch (driver seat).

3.OCCUPANT CLASSIFICATION SYSTEM

Have a helper sit in the passenger seat.

Does the seat belt warning lamp go ON? YES >> GO TO 4.

NO >> • Check occupant classification system. Refer to SRC-12, "OCCUPANT CLASSIFICATION SYSTEM : System Description".

• Check harness between occupant classification control unit and air bag diagnosis sensor unit.

4.SEAT BELT BUCKLE (PASSENGER SEAT)

Fasten the seat belt buckle (passenger seat).

Does the seat belt warning lamp go OFF? YES >> System OK.

NO >> • Check seat belt buckle switch (passenger seat).

• Check harness between seat belt buckle switch (passenger seat) and air bag diagnosis sensor unit.

• Replace air bag diagnosis sensor unit. Refer to SR-28, "Removal and Installation".

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 ...

Ventilation, heater & air conditioner
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Other materials:

Dtc/circuit diagnosis
U1000 can comm circuit Description Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description". Dtc logic DTC DETECTION LOGIC NOTE: U1000 can be set if a module harness was disconnected and reconnected, perhaps during a repair. Confirm that there are actual CAN diagnostic sym ...

Periodic maintenance
ENGINE COOLANT System Inspection WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pr ...

Clutch fluid
Inspection FLUID LEAKAGE Check clutch line for cracks, deterioration or other damage. Replace any damaged parts. Check for fluid leakage by fully depressing clutch pedal while engine is running. CAUTION: If leakage occurs around connections, reinstall the lines or replace damaged ...

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