Wash Mode
WARNING: This page is about a different car, the 2004 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
When the momentary Wash position of the rear wiper and washer switch rocker is selected, the Wash position circuitry within the switch directs battery current to the rear washer pump and to the rear washer motor control circuit input of the rear wiper motor, which causes both the rear washer pump and the rear wiper motor to operate for as long as the rear wiper and washer switch rocker is held in the momentary Wash position.