High Speed Windshield Wipers
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The smart junction box (SJB) may also be identified as the generic electronic module (GEM).
High speed operation is activated when the multi-function switch supplies a ground to the high speed inputs of the SJB. When the SJB receives ground from the multi-function switch, the SJB activates the run/park and high/low relays by grounding the relay coils. When the wiper run/park and wiper high/low relays are activated, the wiper run/park relay supplies voltage to the high speed output of the wiper high/low relay. The SJB continues to cycle the windshield wiper in high speed mode until the inputs from the multi-function switch are changed from the HIGH speed position.