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Test H: The Washer Pump Is Inoperative

PINPOINT TEST H: THE WASHER PUMP IS INOPERATIVE


H1-H2:






H2-H4:






Normal Operation
The windshield wiper/washer switch sends a reference signal through circuit 680 (LB/OG) to the module (internal). The module then sends battery voltage through circuit 941 (BK/WH) to the windshield washer pump motor, which uses circuit 1205 (BK) for a ground to activate the windshield washer pump.

Possible Causes
- Circuit 941 (BK/WH) open or short to ground
- Circuit 1205 (BK) open
- Windshield wiper motor
- Windshield washer pump