Recirculation air blend door problem

[Aveo41]

Hi - Just got a used Chevy Aveo (T300) 2012. After bringing it home I found the the recirculation/fresh air blend door is not working. Button light comes on/off, but no function. After removing the glove-box I see there is no actuator on the blend door axle. I thought first earlier owners maybe removed it due to malfunction, but I see no loose wires or connectors ... so question is: Should there be an actuator controlling this blend door ? Or is the recirculation controlled somewhere else ? Or did previous owners hide/remove wires also (which however sounds strange) ...Any clues ?