Standard

CIRCUIT OPERATION
The standard windshield wiper system powered by a 20 Amp fuse located in the fuse block. This fuse is HOT in the RUN and ACCESSORY position. This system has two speeds of operation, LOW and HIGH.

When the ignition switch is in the RUN or ACCESSORY position, power is supplied on the F13 circuit to the windshield wiper switch and wiper motor. The wiper system is case grounded at the windshield wiper motor.

When the operator moves the switch to LOW speed position, battery voltage is passed through the switch to circuit V3, which connects to the LOW speed brushes of the wiper motor. If the switch is moved to the HIGH speed mode of operation, power is switched to the V4 circuit and to the HIGH speed brushes of the motor.

As the windshield wiper motor turns, the park switch internal to the motor moves from its grounded position to the powered RUN position. When the wiper switch is turned OFF, the V5 circuit is used to prevent the wipers from stopping in any position but park.

The windshield washer uses a pump motor inside of the windshield washer fluid reservoir. When the washer switch is pressed, power is supplied on the V10 circuit to the pump motor. Ground for the pump motor is the Z1 circuit and terminates at the left headlamp ground.