Intermittent Operation

With the Front Wiper/Washer Switch in the "INT" position, battery voltage is applied through the WIPER WASHER Fuse to the coil of an electronic relay in the Intermittent Controller and to a condenser also in the Intermittent Controller. The condenser charges to voltage and the relay is energized as soon as power is applied. When the switch in the energized relay closes, current flows through the YEL/BLU wire, YEL/BLK wire, Front Wiper/Washer Switch and Intermittent Controller, and the BLU wire to the Front Wiper Motor Low side. The wipers begin to operate at low speed.

By the time the Front Wiper Motor makes one complete sweep and the Front Wiper Motor Pawl and Switch has engaged, the condenser in the Intermittent Controller has discharged. This discharge in the condenser causes the Intermittent Controller Relay coil to de-energize, and the switch in the relay to open. Current flow to the wipers is then cut off until the condenser is recharged. In this manner, intermittent wiper operation is achieved through the charging and discharging of the Intermittent Controller condenser.