Seat Belt Warning System Does Not Function
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp come ON?
YES
GO TO 2.
NO
- Check 5A fuse [No. 31, located in the fuse block (J/B)].
- Check seat belt buckle switch LH.
- Check harness between combination meter and seat belt buckle switch LH.
- Check combination meter. Refer to Fail-Safe .
- SEAT BELT BUCKLE LH
Fasten the seat belt buckle LH.
Does the seat belt warning lamp go OFF?
YES
GO TO 3.
NO
- Check seat belt buckle switch LH.
- Check harness between combination meter and seat belt buckle switch LH.
- 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 System Description .
- Check harness between occupant classification system control unit and air bag diagnosis sensor unit.
- SEAT BELT BUCKLE RH
Fasten the seat belt buckle RH.
Does the seat belt warning lamp go OFF?
YES
System OK.
NO
- Check seat belt buckle switch RH.
- Check harness between seat belt buckle switch RH and air bag diagnosis sensor unit.
- Check harness between seat belt buckle switch RH and occupant classification system control unit.
- Replace air bag diagnosis sensor unit. Refer to Removal and Installation .