Washer System

When the rear washer switch is activated, the BCM  receives a washer request from the SASM  over a private LIN  . The BCM  activates the rear washer relay, sending voltage to the washer pump motor. The washer pump motor then uses the front washer relay as a pass through to ground. The front washer relay is located inside the BCM  and cannot be serviced separately from the BCM  .