Continuous Wipe Mode

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

When the Low position of the control knob on the control stalk of the multi-function switch is selected the EMIC sends an electronic wiper switch low message to the TIPM, then the TIPM directs battery current to the low speed brush of the wiper motor, causing the wipers to cycle at low speed. When the High position of the control knob is selected the EMIC sends an electronic wiper switch high message to the TIPM, then the TIPM directs battery current to the high speed brush of the wiper motor, causing the wipers to cycle at high speed.

When the Off position of the multi-function switch control knob is selected, the EMIC sends an electronic wiper switch off message to the TIPM. If the wiper motor was operating at high speed, the TIPM immediately de-energizes the wiper motor high speed brush and energizes the low speed brush causing the wiper motor to return to low speed operation. Then one of two events will occurs, which depends upon the position of the wiper blades on the windshield at the moment that the control knob Off position is selected.

If the wiper blades are in the down position on the windshield when the Off position is selected, the park switch that is integral to the wiper motor is closed to ground and provides a hard wired park switch sense input to the TIPM. The TIPM then de-energizes the wiper motor low speed brush and the wiper motor ceases to operate. If the wiper blades are not in the down position on the windshield at the moment the Off position is selected, the park switch is an open circuit and the TIPM keeps the wiper low speed brush energized, which causes the wiper motor to continue running at low speed until the wiper blades are in the down position on the windshield and the park switch input to the TIPM is again closed to ground.