Sunroof Motor
WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
The sunroof has a bi-directional motor. When the motor is not operating both sunroof motor control circuits are grounded. When the motor drives the sunroof glass in the direction from the vent to closed or closed to open position, the following occurs:
- Voltage is supplied to the sunroof motor open control circuit.
- Ground is maintained to the sunroof motor close control circuit.
When the motor drives the sunroof in the direction from the open to closed or closed to vent position, the following occurs:
- Voltage is supplied to the sunroof motor close control circuit.
- Ground is maintained to the sunroof motor open control circuit.
The sunroof module is equipped with a timer circuit which stops the operation of the sunroof motor after 8 seconds.