Rear Wiper and Washer
System OutlineWhen the ignition SW is turned on, current flows to TERMINAL 1 of the rear washer motor, TERMINAL 3 of the rear wiper motor and relay through the RR WIP fuse.
1. Rear Wiper Normal Operation
With the ignition SW turned on and rear wiper and washer SW turned on, current to TERMINAL 3 of the rear wiper motor and relay flows to TERMINAL 1 of the rear wiper motor and relay to TERMINAL (B) 7 of the rear wiper and washer SW to TERMINAL (B) 2 to GROUND. Thus, the relay coil is activated and current to the rear wiper motor to motor to GROUND, causing the motor to operate the wiper.
2. Rear Wiper Intermittent Operation
When the ignition SW is turned on and the rear wiper and washer SW is turned to LO position, current to TERMINAL 3 of the rear wiper motor and relay flows to TERMINAL 2 of the rear wiper motor and relay to TERMINAL (B) 6 of the rear wiper and washer SW to TERMINAL (B) 2 to GROUND.
This causes the motor to operate (The point changes) and the intermittent circuit of the relay operates. Intermittent operation of the circuit is controlled by the charging and discharging of the condenser installed inside the relay.
3. Washer Operation
With the ignition SW turned on and the rear wiper and washer SW turned to HI position, when the wiper SW is turned further, current to TERMINAL 1 of the rear washer motor flows to TERMINAL 2 to TERMINAL (A) 5 of the rear wiper and washer SW to TERMINAL (B) 2 to GROUND so that the washer motor rotates and the window washer emits a water, only while the switch is fully turned.
When the wiper SW is off and then turned washer on (Wiper off side), the wiper SW is on and then turned to washer on (Wiper on side), only the washer operates.