What does code P22CA mean?

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22CA

P22CATurbocharger Compressor Outlet Switching Valve Control Circuit/Open

P22CA is a generic powertrain code that indicates the engine control module (ECM) has detected an open circuit or abnormal voltage on the control circuit for the turbocharger compressor outlet switching valve. This valve, often part of the charge-air system, directs airflow to regulate boost pressure and prevent compressor surge. The ECM monitors the circuit for expected electrical continuity and sets the code when the signal falls outside the normal range.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.