Test F: The Washer Pump Is Inoperative
PINPOINT TEST F: THE WASHER PUMP IS INOPERATIVEF1-F2:
F2-F4:
F4-F6:
F6-F8:
F9-F10:
Normal Operation
Under normal operation, when the washer is selected, the multi-function switch provides ground to the smart junction box (SJB) through circuit 950 (WH/BK). Voltage is provided to the washer relay coil and switch through circuit 1671 (RD). When the SJB commands the washer ON, ground is provided to the washer relay coil through circuit 686 (TN/RD). When the washer relay is energized, voltage is sent from the washer relay to the washer motor through circuit 941 (BK/WH). Ground for the washer motor is provided through circuit 57 (BK).
Possible Causes
- An open in circuit 57 (BK), 686 (TN/RD), 941 (BK/WH), 950 (WH/BK) or 1671 (RD)
- A short to voltage in circuit 686 (TN/RD)
- Washer relay
- Washer pump
- Multi-function switch
- Smart junction box (SJB)