Intermittent

With the ignition switch in ON or START, battery voltage is applied to the windshield wiper/washer switch, windshield wiper motor, and windshield wiper relay from fuse 6.

Low Speed
When the windshield wiper switch is moved to LO, battery voltage is applied to the LO winding of the windshield wiper motor and the windshield wipers run at low speed.

Park/Run
When the windshield wiper switch is turned to OFF, fuse 6 provides battery voltage through the windshield wiper motor, windshield wiper relay, and the windshield wiper switch to the LO winding of the windshield wiper motor. When the switch on the motor reaches the PARK position, battery voltage from fuse 6 is removed from the circuit and the windshield wipers stop in the PARK position.

High Speed
When the windshield wiper switch is in HI, battery voltage is applied to the HI winding of the windshield wiper motor and the windshield wipers run at high speed.

Intermittent
When the windshield wiper switch is moved to INT, the windshield switch applies battery voltage to the windshield wiper relay. The windshield wiper relay momentarily energizes every 3 to 4 seconds and applies battery voltage to the LO winding of the windshield wiper motor to move the windshield wipers from the PARK position to the RUN position. The PARK/RUN function takes over to return the windshield wipers to the PARK position and the windshield wipers make a single sweep approximately every 3 to 4 seconds.

Washer
When the windshield washer switch is depressed, battery voltage is applied to the windshield washer motor and the windshield wiper relay. The windshield washer motor pumps fluid on the windshield and the windshield wiper relay energizes and applies battery voltage to the LO winding of the windshield wiper motor through the windshield wiper switch. The wipers run at LO speed until the switch is released.