With AC or heater ON, I get air from vents on feet, defrost, and front vents on the side. No air blows from the front vents in the middle. It
does not matter which option I choose on the vent mode switch (Face, Face&Feet, Feet, Feet&Defrost, Defrost). With the vent mode switch disconnected (the dash is completely dismantled), I connected the AC switch and the fan switch, then I started the fan, and the air is still blowing on feet, defrost, and front side vents - no air from the front middle vents. I have checked the air inlet servomotor on the blower unit, it is working fine. Where it is the air outlet servomotor ? Is it on the passenger side or driver side? Do I need to remove the steering and and the steering column covers to reach the servomotor? What does the servomotor look like? What is the purpose of air outlet servo motor? Could the problem be the inlet damper control cable? The central console, glove box, and lower dash is completely disassembled. I do not know which cable is the inlet damper control cable. Where this cable starts and where it ends?
Thanks for reading this lengthy message and your help.