Rear Washer Motor
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The BCM monitors the rear washer motor circuit 392. When a rear windshield wash is requested for more than two minutes circuit 392 at battery voltage, the BCM will turn OFF the rear wiper motor if the rear wiper is not requested by the wiper switch.
Power for the rear washer motor is supplied through the front wiper fuse and rear washer switch. Grounding for the rear washer motor is through the OFF position of the front washer motor switch.