Continuous Wipe Mode
When the Wipe position of the rear wiper and washer switch rocker is selected, the Wipe mode circuitry within the switch directs battery current through the rear wiper motor control circuit to the rear wiper motor, which causes the rear wiper to cycle continuously at a fixed speed.
When the Off position of the rear wiper and washer switch is selected, one of two events is possible. The event that will occur depends upon the position of the wiper blade on the liftglass at the moment that the Off position is selected. If the wiper blade is in the up position on the glass when the Off position is selected, the park switch in the rear wiper motor is closed to ground through the rear wiper motor control circuit input and the wiper motor ceases to operate. If the wiper blade is not in the up position on the glass when the Off position is selected, the park switch is closed to battery current through the fused ignition switch output (run) circuit. The park switch directs this battery current to the rear wiper motor brush causing the motor to continue running until the wiper blade is in the up position on the glass, at which time the park switch opens the battery current feed to the rear wiper motor brush and is again closed to ground through the rear wiper motor control circuit input and the wiper motor ceases to operate.