Test I: The Washer Pump Is Inoperative
PINPOINT TEST I: THE WASHER PUMP IS INOPERATIVENormal Operation
During normal operation, the washer pump motor is powered through an internal relay in the wiper motor using circuit CRW14 (BU/WH). The multi-function switch provides input to the windshield wiper motor through circuit CRW07 (GY/BN) to activate the washer. The washer pump motor is grounded at all times through circuit GD123 (BK/GY) early build or GD120 (BK/WH) late build.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Washer pump motor
- Multi-function switch