Diesel Data: Automotive Repair

Tests AH

PINPOINT TEST AH: THE SAFETY BELT WARNING CHIME DOES NOT OPERATE CORRECTLY


Test AH1-AH2:






Test AH3-AH4:






Test AH5-AH6:






Normal Operation
The safety belt switch is hardwired directly to the instrument cluster through circuit 8-GE52 (WH/BK). When the safety belt is not fastened, the safety belt switch closes to ground through circuit 31-GE52 (BK/RD) and provides a ground to the instrument cluster through circuit 8-GE52 (WH/BK). When the safety belt is fastened, the safety belt switch opens and removes the ground to the instrument cluster. The instrument cluster, upon receipt of the safety belt ground, turns on the safety belt warning indicator and sounds the audible chime at a rate of 60 chimes per minute.

Possible Causes
- circuit 8-GE52 (WH/BK) open or short to ground
- circuit 31-GE52 (BK/RD) open
- safety belt switch
- instrument cluster