Diagnostic Aids
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The Wash mode for this diagnostic procedure is defined as the mode when the wiper switch is OFF and only the windshield washer switch has been activated. When the washer switch is activated with the wiper switch OFF, the wipers should wipe the windshield 3-5 times and then park.