Washer Operation

When the Front Wiper/Washer Switch is pulled toward the driver, battery voltage is applied through the Wash Switch contacts to the Front Washer Pump. The Front Washer Pump is permanently grounded at G104 and will operate as long as the Wash Switch is held. To initiate wiper operation, battery voltage is applied through the Wash Switch contacts and the Intermittent Controller to the OFF contacts of the Front Wiper/Washer Switch. This action applies battery voltage to the Low side of the Front Wiper Motor. The Front Wiper Motor is permanently grounded at G109 and will continue to operate in Low as long as the Wash Switch is held in the ON position.

The Front Wiper Motor Pawl and Switch will engage as the Motor turns, and its contacts will remain closed until the wipers are in the Park position. While the Pawl and Switch contacts are closed, voltage is applied through the WIPER WASHER Fuse, the Front Wiper Motor Pawl and Switch contacts and the OFF contacts of the Front Wiper/Washer Switch to the Low side of the Front Wiper Motor. In this manner, the wipers will complete at least one sweep after the Wash Switch has been released.