Rear Window Washer

When the rear window washer switch is activated, the SCCM sends the request to the windshield wiper motor through the LIN. The windshield wiper motor energizes the rear washer relay (located in the BCM-C) and activates the rear window wiper motor. When the windshield wiper motor activates the rear window wash relay, voltage is provided to the washer pump, directing washer fluid to the rear window. If equipped with a rear camera, washer solvent is also directed to the rear camera lens when the washer pump is active. When the switch is released, the rear window wiper motor continues to operate for 3 additional wipes and then turns off.

Ground for the washer pump is provided through the windshield washer relay within the windshield wiper motor.