Wiper and Washer Systems: Description and Operation

Wiper And Washer:

1. LOW SPEED OPERATION
When the Wiper SW is turned to LOW position, current flows through TERMINAL 17 of the Front Wiper and Washer SW to TERMINAL 7 --> TERMINAL 1 of the Front Wiper Motor --> TERMINAL 5 --> GROUND, causing the Wiper Motor to operate at low speed.

2. HIGH SPEED OPERATION
When the Wiper SW is turned to HIGH position, the current flows through TERMINAL 17 of the Front Wiper and Washer SW to --> TERMINAL 8 --> TERMINAL 4 of Front Wiper Motor --> TERMINAL 5 --> GROUND, causing the Wiper Motor to run at high speed.

3. INT POSITION
With the Wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows through TERMINAL 17 of the Front Wiper and Washer SW to TERMINAL 2 --> GROUND. This flow of current operates the intermittent circuit and the current flows through TERMINAL 17 of the Front Wiper and Washer SW to TERMINAL 7 --> TERMINAL 1 of the Front Wiper Motor --> TERMINAL 5 --> GROUND and the Wiper functions. The intermittent operation is controlled by a condenser's charged and discharged function installed in the relay and the intermittent time is controlled by a time control SW to charge the charging time of condenser.

4. WASHER CONTINUOUS OPERATION
With the Washer SW turned to ON, current flows to TERMINAL 2 of the Washer Motor --> TERMINAL 1 --> TERMINAL 11 of Front Wiper and Washer SW --> TERMINAL 2 --> GROUND, causes the Washer Motor to run and the Window Washer to jet. This causes current to flow to Washer continuous operation circuit in TERMINAL 17 of the Front Wiper and Washer SW --> TERMINAL 7 --> TERMINAL 1 of Front Wiper Motor --> TERMINAL 5 --> GROUND, and the Wiper functions.