System outline

When the power sw is pushed to ig on position, the current flows from the wsh fuse to rear washer motor terminal 1, and the current flows from the rr wip fuse to rear wiper relay terminal 3, and to the rear wiper motor terminal 1 respectively.

1. Rear wiper normal operation 

   When the power sw is pushed to ig on position, and the rear wiper and washer sw is turned to hi position, the current flows from the rear wiper relay terminal 3 to terminal 6 to the rear wiper and washer sw terminal (a) 7 to terminal (a) 2 to ground, and turns on the rear wiper relay. As a result, the current flows from the rear wiper relay terminal 3 to terminal 4 to the rear wiper motor terminal 3 to terminal 2 to ground, and operates the rear wiper.

2. Rear wiper intermittent operation 

   When the power sw is pushed to ig on position, and the rear wiper and washer sw is turned to lo position, the current flows from the rear wiper relay terminal 3 to terminal 2 to the rear wiper and washer sw terminal (a) 6 to terminal (a) 2 to ground, and the intermittent circuit in the rear wiper relay is controlled to operate the wiper intermittently.

3. Washer operation 

   With the power sw is pushed to ig on position, and the rear wiper and washer sw turned to on position, when the washer is turned on (to wiper hi side), current to terminal 1 of the washer motor flows to terminal 2 of the motor to terminal 5 of the rear wiper and washer sw to terminal 2 to ground so that the washer motor rotates and the window washer emits water.

   With the power sw is pushed to ig on position, and the rear wiper and washer sw turned to off position, when the washer is turned on (to wiper off side), current flows as above so that the washer motor rotates and the window washer emits water as well as the wiper operates.