9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
Air Door Actuator / Motor: Description and Operation
Motor, Air Distribution, Defroster (714)
Motor, Air Distribution, Defroster (714)
Main function
The stepping motor is connected via linkage and controls the defroster damper which is used for both climate zones.
Type
The unipolar stepping motor consists of a rotor (10 poles) and four stator windings. A gearbox transfers the power from the rotor to the lever which
controls the damper.
Connection
The four stepping motor windings receive a common B+ feed from ACC unit pin 19 (K42) and grounds each corresponding winding (pin 7, 27, 6 and 26