Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The multi-function switch supplies power to the windshield washer pump on circuit 686 (TN/RD) when the wash function is ON. The windshield washer pump is grounded on circuit 57 (BK).