Park Position Operation

Windshield wiper motor park operation is controlled by the body control module (BCM) using an input from the park switch within the wiper motor assembly. The BCM monitors the windshield wiper motor park switch signal circuit to determine if the windshield wiper blades are at the bottom of the glass. The signal circuit is pulled to ground by the wiper motor park switch when the wiper blades are in the down or park position. When the wiper switch is turned to the OFF position while the wiper motor is somewhere in mid-cycle, the BCM will continue to operate the motor until the wipers reach the park position. If the ignition is turned OFF while the wipers are in mid-cycle, the wipers will stop immediately where they are. The BCM will park the wipers the next time the ignition is turned ON.

The wipers will not park when they are commanded ON and OFF using a scan tool. The BCM will park the wipers the next time the wiper switch is turned ON and OFF.