High-Speed Windshield Wipers

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

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