Mist Wipe Mode

When the control knob of the multi-function switch is rotated downward to the momentary MIST position, the SCM sends an electronic wiper mist mode  status message to the SAS, the SAS relays an electronic wiper mist mode  request message to the BCM, then the BCM energizes the wiper on and off relay to operate the wiper motor at low speed for as long as the switch is held closed, then de-energizes the motor through the on and off relay when the state of the switch changes to open and the wiper blades are parked near the base of the windshield. The BCM can operate the wiper motor in this mode for 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 closed.