Rear Wiper Washer

When the ignition SW is turned ON, current flows to TERMINAL 2 of the washer motor, TERMINAL 1 of the washer change valve, TERMINAL 1 of the rear wiper relay and TERMINAL 1 of the rear wiper motor from the WIPER fuse.

1. REAR WIPER NORMAL OPERATION
With the ignition SW turned ON and the rear wiper and washer SW turned ON, the current from TERMINAL 1 of the rear wiper relay flows to TERMINAL 6 of the relay --> TERMINAL 1 of the rear wiper and washer SW --> TERMINAL 16 --> GROUND. Thus, the relay coil is activated, and the current from TERMINAL 1 of the relay plows to TERMINAL 3 --> TERMINAL 3 of the rear wiper motor --> TERMINAL 2 --> GROUND, causing the motor to rotate to operate the rear wiper.

2. REAR WIPER INTERMITTENT OPERATION
With the ignition SW turned ON and the rear wiper and washer SW turned to INT position, the current from TERMINAL 1 of the rear wiper relay flows to TERMINAL 4 of the relay --> TERMINAL 10 of the rear wiper and washer SW --> TERMINAL 16 --> GROUND, as a result, the relay operates for approx. 6-10 seconds., and the current flows from TERMINAL 1 of the rear wiper relay to TERMINAL 3 --> TERMINAL 3 of the rear wiper motor --> TERMINAL 2 --> GROUND, causing the motor to rotate to operate the rear wiper. At this time, the contact in the wiper motor closes, and the current flows from TERMINAL 1 of the rear wiper motor to TERMINAL 4 --> TERMINAL 2 of the rear wiper relay --> TERMINAL 3 --> TERMINAL 3 of the rear wiper motor --> TERMINAL 2 --> GROUND.

Thus, the intermittent-stop circuit operates, the condenser in the circuit charges and the wiper continues to operate until reaching the STOP position. After the wiper stops, the current does not flow to the intermittent-stop circuit from TERMINAL 2 of the relay, but the condenser discharges the current into the intermittent circuit and the circuit operates until the condenser discharge ends. As a result, this discharge interval becomes the intermittent time. When the current is discharged completely, the current from TERMINAL 1 of the relay flows to TERMINAL 4 --> TERMINAL 10 of the rear wiper and washer SW --> TERMINAL 16 --> GROUND.
Then the current from TERMINAL 1 of the relay flows to TERMINAL 3 --> TERMINAL 3 of the rear wiper motor --> TERMINAL 2 --> GROUND, rotating the motor. According to repetition of this process, intermittent operation of the rear wiper occurs.

3. WASHER OPERATION
With the ignition SW turned ON and the rear wiper and washer SW turned to ON or INT position, when the wiper SW is pushed strongly toward the ON or INT side, the current from TERMINAL 2 of the washer motor flows to TERMINAL 1 of the motor --> TERMINAL 2 of the rear wiper and washer SW --> TERMINAL 16 --> GROUND, so that the washer motor rotates and the window washer emits a water spray, only while the wiper SW is pressed. At the same time, the washer change valve operates.
When the current flows to the washer change valve, the washer change valve is activated and washer emits a water spray on the rear window.