Sunroof Limit Switches

The sunroof limit switches track the position of the sunroof glass through the two limit switches:
^ The soft stop limit
^ The vent stop limit

As a limit switch closes, the 5 volt reference will be shorted to the sunroof limit switch low reference circuit, pulling the reference voltage to 0 volts. The different input combinations from the sunroof limit switch soft stop signal circuit and sunroof limit switch range signal circuit, allows the sunroof module to:
^ Understand the position the sunroof glass.
^ Soft stop the sunroof glass at the close and full open positions.