Headlamp

The headlight wiper motors wipe five times while the headlight washer motor applies fluid between the first four wipes. With the starter switch in ON or START, battery voltage is applied to the headlight wiper timer unit, the headlight washer motor, and the left and right headlight wiper motors. The headlight wiper switch is a momentary switch, and when it is pushed to the ON position, it provides ground to the left and right headlight wiper motors. The wipers begin to wipe and the contact disk is moved from the PARK position. When the headlight wiper switch is released, it is now in the OFF position. Ground is provided for the left and right headlight wiper motors through the contact disks and the OFF contacts of the headlight wiper switch. As the wipers continue to wipe, a ground signal is sent to the headlight wiper timer unit for the first four wipes. This signals the headlight wiper timer unit to control the headlight washer motor to pump fluid onto the headlights between the first four wipes of the headlight wipers. When the contact disk reaches the 5 position, the ground signal is removed from the headlight wiper timer unit. No fluid is pumped onto the headlights between the fourth and fifth wipes. When the contact disk reaches the PARK position, ground is removed from the circuit and the wipers stop.