Sunroof Limit Switches
WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The sunroof limit switches track the position of the sunroof glass through 2 limit switches:
- Soft Stop limit switch through the sunroof limit switch soft stop signal circuit
- Vent Stop limit switch through the sunroof limit switch range signal circuit
The sunroof control module monitors the limit switches and based on the input combinations, determines the position of the sunroof glass. As a sunroof limit switch closes, the 5-volt reference will be shorted to the sunroof limit switch low reference circuit, pulling the 5-volt reference to 0 volts.
The sunroof control module monitors both sunroof switch input requests and based on the sunroof limit switch input combinations, will control an output to the sunroof motor, to drive the sunroof glass to the requested position.