Test D: The Windshield Washer Pump Is Inoperative

PINPOINT TEST D: THE WINDSHIELD WASHER PUMP IS INOPERATIVE

D1-D3:

D4-D9:

D9-D11:

D11-D12:

Normal Operation
The washer switch portion of the multifunction switch grounds circuit 680 (LB/OG) which signals the smart junction box (SJB) to energize the washer pump relay. The relay provides voltage to the windshield washer pump through circuit 941 (BK/WH). The washer pump is grounded through circuit 57 (BK).

Possible Causes
- fuse(s)
- circuit 57 (BK) open
- circuit 680 (LB/OG) open or short to ground
- circuit 941 (BK/WH) open
- multifunction switch
- SJB
- windshield washer pump