Operation CHARM: Car repair manuals for everyone.
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Pinpoint Tests

PINPOINT TEST A: NO COMMUNICATION WITH THE DRIVER SEAT MODULE (DSM)


A1:






A1-A2:






Normal Operation
The DSM fused power is supplied through the bussed electrical center (BEC) circuit 566 (DG) and circuit 1567 (RD/LB). The DSM ground circuits are circuit 1203 (BK/LB) and 1205 (BK).

Possible Causes
- fuse(s)
- circuit 566 (DG) open or short to ground
- circuit 1203 (BK/LB) open
- circuit 1205 (BK) open
- circuit 1567 (RD/LB) open or short to ground
- DSM