Washer Operation

When the windshield wiper washer switch is pulled to the wash position voltage is supplied from the windshield wiper washer switch to the windshield washer pump and the windshield wiper motor relay. The voltage from the washer switch to the washer pump is the supply voltage and is continuous as long as the washer switch is held closed. The voltage supply from the washer switch to the wiper motor relay is a signal voltage and the wiper motor relay will continue to supply the windshield wiper motor with operating voltage for approximately 5 seconds after the washer switch is released.