P22C7Turbocharger Compressor Outlet Valve Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P22C7 means the drive line of the compressor outlet valve reads higher than the module expects, typically because the wire has a short to battery voltage or the coil draws excessive current while the driver is on. Modern output stages notice the overcurrent and switch off to protect themselves, so the valve then stops responding even though nothing is open. The valve itself belongs to the boost path of register, two-stage or e-compressor charging, where it controls whether a compressor delivers into the intake. Electrical checks like this run continuously under the CARB rules for monitored output components. No manufacturer publicly documents P22C7. Compared with the open-circuit code P22C5 and the low-voltage code P22C6, the search here focuses on rubbed wires touching a positive feed or a shorted actuator winding.
- What you may notice
- Check engine light on
- Valve no longer switches, boost reduced
- Code returns immediately after clearing
- Likely causes
- LikelyControl wire shorted to a battery-voltage feed
- PossibleShorted turns in the valve coil causing overcurrent
- RareReplacement valve with unsuitable coil resistance
- RareFaulty output stage in the engine control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.