Driver's Window

When you move the driver's switch to the UP position, voltage is applied to the UP input of the power window control unit. The control unit then supplies voltage through the motor control UP output terminal to move the window up.

When you move the driver's switch to the DOWN position, voltage is applied to the DOWN input of the power window control unit. The control unit then supplies voltage through the motor control DOWN output terminal to move the window down.

When you move the driver's switch to AUTO, voltage is applied to the auto hold DOWN input terminal of the power window control unit. The control unit then supplies voltage to the motor control DOWN output to move the window down. Once the window starts to move, you can release the switch and the window will continue to the full down position

The driver's power window motor contains a pulser used by the power window control unit to determine when the window has stopped moving. When the motor is running, a voltage is induced in the pulser. When the motor stops, no voltage is induced. The power window control unit turns off power to the motor when it detects no induced voltage at its sensor input terminal.