Test H: The Washer Pump Is Inoperative
PINPOINT TEST H: THE WASHER PUMP IS INOPERATIVENormal Operation
Under normal operation, the windshield washer pump motor is grounded through internal relays in the wiper motors using circuits CRW14 (BU/WH) and CRW23 (VT/GN). The multi-function switch provides input to the windshield wiper motor through circuit CRW07 (GY/BN) to activate the washer. The windshield wiper motor activates the internal relay and then provides power through circuit CRW14 (BU/WH). When the rear window washer is activated, the multi-function switch provides input to the rear window wiper motor through circuit CRW20 (GY/YE) to activate the washer. The rear window wiper motor activates the internal relay and then provides power through circuit CRW23 (VT/GN).
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Multi-function switch
- Washer pump motor
- Windshield wiper motor
- Rear window wiper motor
H1:
H2-H4:
H4-H6:
H6-H8:
H9-H11:
