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Test B: The Wipers Are Inoperative - Rear Wipers

PINPOINT TEST B: THE WIPERS ARE INOPERATIVE - REAR WIPERS


B1:






B2-B4:






B4-B6:






B6-B8:






B9-B10:






Normal Operation
The rear wiper motor assembly receives power through circuit 56 (DB/OG) and circuit 406 (BN/WH). The rear wiper motor assembly is grounded through circuit 1205 (BK). The rear wiper motor assembly receives inputs from the multi-function switch through circuit 488 (DG) and 485 (PK/BK). The multi-function switch is grounded through circuit 1205 (BK).

Possible Causes
- Fuse(s)
- Circuits 56 (DB/OG) open or short to ground
- Circuit 406 (BN/WH) open or short to ground
- Circuit 485 (PK/BK) open
- Circuit 488 (DG) open
- Circuit 1205 (BK) open
- Rear wiper motor
- Multi-function switch
- BEC
- SJB