With Pulse

CIRCUIT OPERATION
Whenever the Ignition Switch is in the "ON" or "START" position, battery voltage is applied through the WIP Fuse to the Windshield Washer Pump, the Windshield Wiper/Washer Switch and the Windshield Wiper Motor.

WASHER OPERATION
When the Washer Switch is pressed, a ground is provided to the Windshield Washer Pump through the WASH contacts of the Windshield Wiper/Washer Switch and Junction Connector 1 to G200. The Windshield Washer Pump operates as long as the Washer Switch is pressed. Depressing the Washer Switch will also initiate wiper operation. When the Washer Switch is depressed, voltage is supplied through the internal circuity of the Windshield Wiper/Washer Switch to the LOW side of the Windshield Wiper Motor. Since the Windshield Wiper Motor is permanently grounded at G1O2, the wipers will operate until the Washer Switch is released.

As the motor turns, the Windshield Wiper Motor Pawl and Switch is engaged and turns along with the motor. This pawl and switch remains closed for one wipe cycle. With this switch closed, battery voltage is applied through the WIP Fuse, the Windshield Wiper Motor Pawl and Switch contacts and through the internal circuitry of the Windshield Wiper/Washer Switch to the LOW side of the Windshield Wiper Motor. In this manner, the Windshield Wiper Motor will continue to complete two wipe cycles even though the Washer Switch is released.

LOW OPERATION
With the Windshield Wiper/Washer Switch in the "LO" position, battery voltage is applied through the WIP Fuse and the closed "LO" contacts of the Windshield Wiper/Washer Switch to the LOW side of the Windshield Wiper Motor. Since the Windshield Wiper Motor is permanently grounded at G102, the motor operates at low speed as long as the switch remains in this position.

HIGH OPERATION
With the Windshield Wiper/Washer Switch in the "HI" position, battery voltage is applied through the WIP Fuse and the closed "HI" contacts of the Windshield Wiper/Washer Switch to the HIGH side of the Windshield Wiper Motor. Since the Windshield Wiper Motor is permanently grounded at G102, the motor operates at high speed as long as the switch remains in this position.

INTERMITTENT OPERATION
Intermittent operation is similar to the "Low Operation" described earlier with the exception that the internal circuitry of the Windshield Wiper/ Washer Switch acts as a timer relay. Battery voltage is applied to the LOW side of the Windshield Wiper Motor in intervals of timed pulses through the closed "INT" contacts of the Windshield Wiper/Washer Switch. The timed pulses that are sent to the Windshield Wiper Motor can be adjusted by turning the "INT TIME" Control on the Windshield Wiper/Washer Switch.