Test H: The Washer Pump Is Inoperative
PINPOINT TEST H: THE WASHER PUMP IS INOPERATIVEH1-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