Wiper and Washer Systems: Description and Operation

With the Ignition SW turned ON, current flows to TERMINAL 4 of the Wiper and Washer SW [Comb. SW], TERMINAL 2 of the Washer Motor and TERMINAL 6 of the Wiper Motor through the WIPER fuse.

1. LOW SPEED POSITION
With Wiper SW turned to LOW position, the current flows from TERMINAL 4 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 8 --> TERMINAL 3 of the Wiper Motor --> to GROUND, causing the Wiper Motor to run at low speed.

2. HIGH SPEED POSITION
With the Wiper SW turned to HIGH position, the current flows from TERMINAL 4 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 9 --> TERMINAL 2 of the Wiper Motor --> GROUND, causing the Wiper Motor to run at high speed.

3. INT POSITION (W/ INT SW)
With Wiper SW turned to INT position, the Wiper Relay operates and the current which is connected by the relay function flows from TERMINAL 4 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 1 --> to GROUND. This flow of current operates the intermittent circuit and current flows from TERMINAL 4 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 8 --> TERMINAL 3 of the Wiper Motor --> to GROUND and the Wiper functions.

The Intermittent operation is controlled by a condenser's charged and discharged function installed in the relay, and the installed in the Relay, and the intermittent time is controlled by a time control SW to change the charging time of the condenser.

4. MIST POSITION (W/ MIST SW)
With Wiper SW turned to Mist position, the current flows from TERMINAL4 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 8 --> TERMINAL 3 of the Wiper Motor --> GROUND and causes the Wiper Motor to run at Low Speed

5. WASHER CONTINUOUS OPERATION
With Washer SW turned to ON, current flows from TERMINAL 2 of the Washer Motor --> TERMINAL 1 --> TERMINAL 2 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 1 --> GROUND, and causes the Washer Motor to run and the Window Washer to jet.

This causes the current to flow to Washer continuous operation circuit (W/ INT SW) in TERMINAL 4 of the Wiper and Washer SW [Comb. SW] --> TERMINAL 8 --> TERMINAL 3 of the Wiper Motor --> GROUND, and the Wiper functions.