There are 3 mounted to the heater/air distribution box. The two mounted to the bottom of the box have 2 pins. They run to the end and quit. Reverse the polarity and they run the other way and stop.
The other motor mounted to the side near the a/c computer has 5 pins, which could indicate it has a sensor circuit for position. I think that motor controls the foot air doors. Anybody know about this 3rd multipin motor?