U062DLost Communication With A/C Refrigerant Distribution Valve Actuator D
- Generic OBD-II code · Network
- How the car detects it
- Actuator D is the fourth refrigerant switching valve and appears only in loops with many separately controlled paths; because a single multi-way unit can replace up to four solenoid valves, many vehicles never use the letter D. U062D means the controller sent requests to valve D and got no valid answer within its expected schedule. No manufacturer documents U062D publicly. A useful check is whether the actuator wakes up and draws current when commanded: no current hints at supply or ground, current without reply at the LIN line or the actuator itself. Replacing a valve body means opening the refrigerant circuit, so recovery, evacuation and recharge are part of the job. Related actuators are U062A to U062C.
- What you may notice
- One refrigerant path cannot be opened or closed
- Reduced heating or cooling in certain modes
- Likely causes
- LikelySupply or ground of actuator D missing (no current draw when commanded)
- PossibleLIN line to actuator D open or shorted
- PossibleActuator D electronics failed
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.