High Speed Windshield Wipers

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

High speed is activated when the multifunction switch supplies ground to the windshield wiper motor module inputs. The windshield wiper motor module then supplies ground to the run/park relay coil and the high/low relay coil, activating the relay with voltage supplied from the ignition switch (ON/ACC) through the SJB. When the windshield wiper motor module receives voltage from the run/park relay, it removes ground from the run/park sensor, deactivating it. The windshield wiper motor continues to operate from voltage connected through the run/park relay until the Hall-effect senses the magnet in the motor. When the Hall effect senses the magnet in the motor, the windshield wiper motor returns to the park position, the internal run/park relay grounds the windshield wiper motor module input and the windshield wiper motor module removes ground from the windshield wiper high/low relay coil, deactivating the high/low relay and windshield wiper motor. The windshield wiper motor module continues to cycle the windshield wipers until the inputs from the multifunction switch are changed from the high speed position.