Pulse Wipe Mode

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

When the end of the control knob on the control stalk of the multi-function switch is depressed momentarily toward the steering column to the actuation point, the SCM monitors this selection and sends an electronic wiper switch pulse status message to the BCM. Then the BCM energizes the front wiper on-off relay without energizing the front washer pump/motor for as long as the switch is held in this position, then de-energizes the relay when the switch is released, parking the wiper blades near the base of the windshield. The BCM can operate the front wiper motor in this mode for only one low speed cycle at a time, or for an indefinite number of sequential low speed cycles, depending upon how long the switch is held in this momentary position.