Test F: The Washer Pump Is Inoperative

PINPOINT TEST F: THE WASHER PUMP IS INOPERATIVE

F1:

F1-F3:

F4-F7:

F8:

Normal Operation
During normal operation, the windshield wiper motor receives voltage at all times through central junction box (CJB) fuse 44 (20A), circuit 950 (WH/BK). The windshield wiper motor also receives power with the ignition switch in RUN or ACC positions through CJB fuse 9 (5A), circuit 65 (DG). Ground is provided to the windshield wiper motor through circuit 938 (BK/LG). The run/park relay and high/low relay are contained in the wiper motor electronics. Mode of operation is dependant on the signal(s) received from the multifunction switch. The windshield washer pump motor is grounded at all times through circuit 57 (BK). When the correct 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
- Multifunction switch
- Open in circuit 941 (BK/WH), 57 (BK) or 680 (LB/OG)
- Washer pump
- Windshield wiper motor