Test E: The Washer Pump Is Inoperative
PINPOINT TEST E: THE WASHER PUMP IS INOPERATIVEE1-E3:
E3-E5:
E6-E8:
Normal Operation
During normal operation, the windshield wiper motor receives voltage at all times through central junction box (CJB) circuit breaker 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 multi-function switch. The windshield washer pump motor is grounded at all times through circuit 57 (BK). When the correct input is received from the multi-function switch, the windshield wiper motor activates the washer pump by providing power through circuit 941 (BK/WH).
Possible Causes
- Multi-function switch
- Open in circuit 941 (BK/WH), 57 (BK) or 680 (LB/OG)
- Washer pump
- Windshield wiper motor