Test E: The Washer Pump Is Inoperative
PINPOINT TEST E: THE WASHER PUMP IS INOPERATIVENormal Operation
When the wash function is selected by the operator, the multi-function switch grounds circuit 680 (LB/OG) to the windshield wiper motor. The windshield wiper motor interprets this ground signal and energizes the internal washer relay. Voltage is sent to the washer pump from the windshield wiper motor through circuit 941 (BK/WH). The windshield washer pump motor is grounded through circuit 57 (BK). The multi-function switch is grounded through circuit 57 (BK).
This pinpoint test is intended to diagnose the following:
- Multi-function switch
- Wiring, terminals or connectors
- Washer pump
- Windshield wiper motor
E1-E3:
E3-E6:
