P22CCTurbocharger Compressor Outlet Switching 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
- P22CC indicates that the drive line of the compressor outlet switching valve carries more voltage or current than allowed, usually a short to a battery feed or a solenoid with shorted windings. The output stage of the engine control module then tends to shut down for self-protection, which leaves the switching valve unpowered and the outlet flap in its rest position. On register or two-stage charging this typically means the second compressor branch is no longer brought in or taken out as planned. The test is electrical and continuous, as CARB requires for monitored output parts. No manufacturer publicly documents P22CC. Measure coil resistance against the specification and check whether the wire touches a positive feed; replacing the module is a last resort.
- What you may notice
- Check engine light on
- Outlet flap no longer switches, power reduced
- Fault returns as soon as the valve is commanded
- Likely causes
- LikelyControl wire shorted to a battery-voltage feed
- PossibleShorted windings in the switching solenoid
- 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
- Easy · Often possible to do yourself.Typical cost: €30 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.