Rear

With the wiper/washer switch in the run position, baftery voltage is supplied to terminal (C) of the wiper moton The ground circuit is provided through terminal (B) and is grounded back through the switch. When the wiper switch is turned to the off position, terminal (A) is positive and the circuit is completed through the park plate. A cam gear on the plate opens the circuit at the park position allowing the wiper to park at the proper location.