Wiper and Washer Systems: Description and Operation

With the ignition SW turned ON, current flows to TERMINAL 4 of the wiper and washer SW, TERMINAL 2 of the washer motor and TERMINAL 6 of the wiper motor through the WIPER fuse.

1. LOW SPEED POSITION
With the wiper SW turned to LOW position, current flows from TERMINAL 4 of the wiper and washer SW to TERMINAL 8 to TERMINAL 3 of the wiper motor to GROUND and causes the wiper motor to run at low speed.

2. HIGH SPEED POSITION
With the wiper SW turned to HIGH position, current flows from TERMINAL 4 of the wiper and washer SW to TERMINAL 9 to TERMINAL 2 of the wiper motor to GROUND and causes the wiper motor to run at high speed.

3. INT POSITION (W/ INT SW)
With the wiper SW turned to INT position, the wiper relay operates and current which is connected by relay function flows from TERMINAL 4 of the wiper and washer SW to TERMINAL 1 to GROUND. This flow of current operates the intermittent circuit and the current flows from TERMINAL 4 of the wiper and washer SW to TERMINAL 8 to 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 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 the wiper SW turned to MIST position, current flows from TERMINAL 4 of the wiper and washer SW to TERMINAL 8 to TERMINAL 3 of the wiper motor to GROUND and causes the wiper motor to run at low speed.

5. WASHER CONTINUOUS OPERATION
With the washer SW turned to ON, current flows from TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 2 of the wiper and washer SW to TERMINAL 1 to GROUND and causes the washer motor to run. And window washer to jet. This causes the current flow to washer continuous operation circuit (W/ INT SW) in TERMINAL 4 of the wiper and washer SW to TERMINAL 8 to TERMINAL 3 of the wiper motor to GROUND and the wiper functions.