Sunroof / Moonroof Limit Switch: Description and Operation

The sunroof limit switches track the position of the glass through two limit switches:
^ Soft Stop limit (sunroof limit switch soft stop signal circuit)
^ Vent Stop limit (sunroof limit switch range signal circuit)

The sunroof module monitors the limit switches and based on the inputs 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 module understands the position of the sunroof glass based on the different input combinations from the soft stop and vent stop limit switches.