The one I'm referring to is the one in the roof, P/N A 126 830 14 72, number "86" in one of those illustrations whunter posted. Does the motor you're holding have a rubber tube attached to it, leading to the passenger side A-pillar? If so, there is no sensor in it, its just a motor. The sensor is in the roof next to the dome light. There is another sensor mounted on the heater box, just keep that in mind. I think it's for the outside temperature, though. not sure.

__________________
Streetside: 1987 Mercedes 300E Petrol Blue/Green
2014 Ford Mustang Grabber Blue
1999 Ford Ranger Green

Dockside: 1968 Eltro 17
1985 Silverton 34C