Seat Belt Systems: Testing and Inspection

SYSTEM INSPECTION
1. Disconnect the seat belt warning timer connector.
2. When the YG wire (terminal 2) and B wire (terminal 3) are connected with a jumper wire, the seat belt warning light should illuminate. If it fails to illuminate, check the bulb, key-reminder switch and fuse.
3. Also the buzzer should sound when the RB wire (terminal 4) and B wire (terminal 3) are connected with a jumper wire. In this condition, fasten the buckle; if the buzzer stops sounding, the seat belt switch is good.
4. If the buzzer does not sound when terminal 3 and terminal 4 are connected with a jumper wire, check continuity of the seat belt switch.





^ If there is continuity in the seat belt switch as indicated in the chart below, replace the buzzer.

Checked between terminals 1 and 2
Buckle unlock Continuity
Buckle lock No Continuity

5. After performing the above inspections, reconnect the seat belt warning timer.
6. With the ignition switch turned to IG, verify the function of the seat belt warning system.