Normal Operation
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Under normal operation, when the washer is selected, the multi-function switch provides ground to the smart junction box (SJB) through circuit CRW07 (GY/BN). Voltage is provided to the washer relay coil and switch through circuit CBP05 (YE). When the SJB commands the washer ON, ground is provided to the washer relay coil through circuit CRW14 (BU/WH). When the washer relay is energized, voltage is sent from the washer relay to the washer motor through circuit CRW24 (GY). Ground for the washer motor is provided through circuit GD123 (BK/GY).
Possible Causes
- An open in circuit GD123 (BK/GY), CRW14 (BU/WH), CRW24 (GY), CRW07 (GY/BN) or CBP05 (YE)
- A short to voltage in circuit CRW14 (BU/WH)
- Washer relay
- Washer pump
- Multi-function switch
- Smart junction box (SJB)