Auto Reverse Operation
The system is composed of the power window master switch and the driver's power window motor.
The driver's power window motor incorporates a Hall IC unit (pulser) which generates pulses during the motor's operation and sends the pulses to the driver's power window control unit. As soon as the power window control unit detects a change in the pulse frequency from the Hall IC unit (pulser), the power window control unit makes the power window motor stop and reverse. This prevents the window from pinching your hand or fingers during auto-up operation.