Test O
PINPOINT TEST O: THE SAFETY BELT WARNING INDICATOR IS INOPERATIVE (CHIME IS OPERATIVE)/DOES NOT OPERATE CORRECTLYTest O1-O2:
Test O3-O4:
Normal Operation
The safety belt warning indicator is controlled by the instrument cluster based upon the safety belt status received from the restraint control module. When the safety belt is unbuckled, the safety belt switch closes, providing a ground signal to the restraint control module through circuit 85 (BN/LB). When the safety belt is buckled, the safety belt switch opens, removing the ground path to the restraint control module. The restraint control module, monitoring the safety belt status, provides a ground to the instrument cluster through circuit 1390 (DB) when the safety belt switch is closed (unbuckled).
Possible Causes
- circuit 1390 (DB) open, short to ground or short to power
- restraint control module
- instrument cluster