Operation CHARM: Car repair manuals for everyone.

Test A

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


Test A1:






Test A2-A3:






Normal Operation
The DSM is powered by battery voltage from circuit 29-AH80 (OG/WH) and 30-AH80 (RD) and is supplied ground on circuit 31-AH80 (BK) and 91-AH80 (BN/WH).

Possible Causes
No communication with the driver seat module can be caused by:
- fuse(s).
- wiring, terminals, or connectors.
- a faulty DSM.