Test K: The Windshield Washer Pump Is Inoperative
PINPOINT TEST K: THE WINDSHIELD WASHER PUMP IS INOPERATIVEK1-K3:
K3-K5:
K6-K8:
K8-K11:
Normal Operation
Under normal operation, the windshield washer pump motor is grounded through internal relays in the wiper motors using circuits CRW14 (BU/WH) and CRW12 (GY/OG). 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 internal relay in the rear window wiper motor provides power through circuit CRW12 (GY/OG).
Possible Causes
- Open in circuits CRW14 (BU/WH), CRW12 (GY/OG) and CRW07 (GY/BN)
- Inoperative multi-function switch
- Inoperative windshield washer pump motor
- Inoperative windshield wiper motor
- Inoperative rear window wiper motor