Seat Belt Warning System Does Not Function

1. Ignition switch ON.

Does the seat belt warning lamp come ON?

YES>>

GO TO 2.

NO>>

• Check 10 A fuse [No. 6, located in the fuse block (J/B) ].
• Check front seat belt buckle switch LH.
• Check harness between BCM and front seat belt buckle switch LH.
• Check combination meter. Refer to Fail-Safe (Full TFT Meter) or Fail-Safe (7 Inch Information Display).

1. Fasten the front seat belt buckle LH.

Does the seat belt warning lamp go OFF?

YES>>

GO TO 3.

NO>>

• Check front seat belt buckle switch LH.
• Check harness between BCM and front seat belt buckle switch LH.

1. 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.

1. Fasten the front seat belt buckle RH.

Does the seat belt warning lamp go OFF?

YES>>

System OK.

NO>>

• Check front seat belt buckle switch RH.
• Check harness between front seat belt buckle switch RH and air bag diagnosis sensor unit.
• Replace air bag diagnosis sensor unit. Refer to Removal and Installation .