Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The windshield washer pump is grounded at all times through circuit GD1230 (BK/GY). When WASH mode is selected, the smart junction box (SJB) receives input from the multi-function switch through circuit CRW07 (GY/BN). The SJB then activates the washer pump relay (integral to SJB) which supplies voltage to the washer pump through circuit CRW14 (BU/WH).