Opening Sunroof to the Full Open Position

The open mode is initiated by moving the sunroof switch rearward to the first position. Holding the sunroof switch in this position will constantly apply the sunroof switch low reference circuit to the sunroof switch open signal circuit (5 volt reference) input, pulling the reference voltage to 0 volts. The sunroof control module, seeing the constant input, will apply voltage to the motor outputs, sliding the sunroof glass and sunshade towards the fully open position. The motor will slide the sunroof glass until:
^ The sunroof switch is released.
^ The sunroof glass reaches a hard stop, that causes motor internal circuit breaker to open, stopping the motor.