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 right multi-function switch control stalk is selected while the front wiper system is operating, the Wash mode circuitry within the switch directs battery current to the front washer pump/motor for as long as the Wash mode circuitry within the switch remains closed. When the control stalk is released the Wash mode circuitry within the switch opens and the front washer pump/motor ceases operation.