Intelligent Switching Unit Description: Wiper

The wiper can operate when IGN 1 power is supplied.

When the INT signal of the wiper switch is supplied to ISU, the internal relay of ISU is energized for 0.5 sec., and the wiper motor starts to move. After 0.5 sec., the motor operates just one cycle and stops at its parking position by the cam plate switch circuit of the wiper motor.

Intermittent time can be adjusted from 1.5 sec. through 12 sec. by the intermittent time adjusting switch. If the washer switch input time is more than 0.3 sec., the internal wiper relay of ISU is energized. The wiper motor continue to work while the washer switch is ON. If the washer switch is turned OFF again, the motor cycles 2 times more.