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)].
- Check seat belt buckle switch (driver seat)
- Check harness between combination meter and seat belt buckle switch (driver seat).
- Check combination meter. Refer to MWI-25, "Fail-Safe".
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 ...
Other materials:
C1143 Steering angle sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1143
ST ANG SEN CIRCUIT
When a malfunction is detected in steering angle sensor.
Harness or connector
Steering angle sensor
ABS actuator and electric u ...
Vin registration
Description
VIN Registration is an operation to registering VIN in ECM. It must be
performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection &
Maintenance (I/M).
Work Procedure
1.CHECK VIN
Check the VIN of the vehicle and note it. ...
Chassis and body maintenance
In-cabin microfilter
In-cabin microfilter : removal and installation
REMOVAL
Remove the in-cabin microfilter cover.
CAUTION:
Before removing the in-cabin microfilter cover, let the vehicle rest
for at least 30 minutes.
Release the filter cover tab (A), then pull the bottom of the in- ...