Windshield Wiper and Washer

WINDSHIELD WIPER AND WASHER

GENERAL DESCRIPTION

OPERATION

Low-speed (and high-speed) wiper operation
- When the wiper switch is placed in the "LOW" position with the ignition switch in the "ACC" or "ON" position, wipers operate continuously at low speed.
- Placing the wiper switch in the "HIGH" position causes the wipers to operate at high speed.

Auto wiper stop operation
- When the wiper switch is placed in the "OFF" position, the cam contacts of wiper motor causes current to flow through the auto wiper stop circuit, allowing the wiper blades to cycle before they reach to the stop positions.

Intermittent wiper operation
- When the wiper switch is placed in the "INTERMITTENT" position with the ignition switch in the "ACC" or "ON" position, the intermittent wiper relay is energized causing the intermittent wiper relay contacts to close and open repeatedly.
- When the contacts are closed, the wiper motor is energized.
- When the wiper motor is energized, the relay contacts open; however, the cam contacts keep the wiper motor energized until the wiper blades return to their stop position.

Washer-wiper operation
- When the washer switch is turned "ON," the intermittent wiper relay contacts close causing wipers to cycle one to two times.