Front Passenger Power Window Operation

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Battery voltage is supplied to the front passenger power window switch through the accessory voltage supply circuit. The passenger window switch also receives a constant ground source. The power window motor control circuits are connected to ground through the normally closed up and down contacts of the front passenger power window switch. When the front passenger power window switch is placed in the down position, the power window motor down control circuit is switched to 12 volts and is applied to the down side of the power window motor. Since the other side of the power motor is connected to ground through the normally closed contacts of the up switch, the window travels down. By placing the front passenger power window switch in the up position, the polarity of the power window motor is reversed and the window travels up.