Mist Wipe Mode
When the right (wiper) multi-function switch control stalk is moved downward to the momentary MIST (or PULSE) position, the switch provides a resistor multiplexed input to the BCM. The BCM responds by energizing a relay that directs battery current to the low speed brush of the wiper motor, causing the wipers operate for one complete low speed cycle. 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 closed.