U065DLost Communication With Air Intake Actuator
- Generic OBD-II code · Network
- How the car detects it
- The air intake actuator swings the inlet door between outside air and cabin air. Modern controllers move it on their own: Ford's SSM 51726 notes that the 2021-23 Bronco opens the inlet door to about half every 30 to 60 minutes in recirculation to refresh the cabin, and onsemi's TND416 describes stepper-driven recirculation flaps that find their end stop by stall detection and save compressor energy by reusing cooled air. U065D is set when the climate master hears nothing more from this actuator. No maker documents the code in public. Which way it hurts depends on where the door stopped: stuck in recirculation, humidity builds and the glass fogs; stuck on fresh air, exhaust odour enters in traffic and maximum cooling weakens.
- What you may notice
- Recirculation button has no effect
- Windows fog quickly when the door is stuck on recirculation
- Outside smells enter the cabin when it is stuck on fresh air
- Likely causes
- LikelyInlet door actuator electronics failed
- PossibleWater ingress at the blower housing reaching the actuator plug
- PossibleLIN or supply wire to the inlet actuator damaged
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.