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Test F: The Washer Pump Is Inoperative

PINPOINT TEST F: THE WASHER PUMP IS INOPERATIVE


F1-F3:






F3-F5:






F5-F7:






F8-F9:






Normal Operation
During normal operation, the windshield wiper motor receives voltage at all times through battery junction box (BJB) fuse 1 (30A), circuit 65 (DG). The windshield wiper motor also receives power with the ignition switch in RUN or ACC positions through central junction box (CJB) fuse 33 (15A), circuit 1002 (BK/PK). Ground is provided to the windshield wiper motor through circuit 676 (PK/OG) and circuit 57 (BK). The run/park and high/low relays are contained in the wiper motor electronics. Mode of operation is dependant on the signal(s) received from the multifunction switch. When the proper input is received from the multifunction switch, the windshield wiper motor activates the washer pump by providing power through circuit 941 (BK/WH).

Possible Causes
- Fuse
- Multifunction switch
- Open in circuit 57 (BK), 589 (OG), 65 (DG) or 941 (BK/WH)
- Washer pump
- Windshield wiper motor