Wiper Park Switch

Wiper park switch
The park switch allows the wipers to come to rest in the park position when the wipe switch is turned off in mid-wipe.

The park switch consists of a positive and a negative contact. These two contacts are described as closed at park and closed when operating. When the wipers first start, the park switch is in the closed at park position. A relay controls battery voltage to the motor. Battery voltage passes through this relay contact to move the wiper motor from the park position.

When the motor moves, the park switch moves to the closed when operating position. Battery voltage to this relay contact is direct from fuse 19. Battery voltage passes through this contact to keep the wiper motor running. The wiper motor operates for one complete revolution until the park switch moves to the closed at park position again.

Switching off the wipers removes battery voltage from the closed at park contact. When the wipers reach the closed at park switch an earth is applied and the motor stops abruptly.