What does code P22D1 mean?

Q: What does code P22D1 mean?

Turbocharger Turbine Inlet Valve Control Circuit High. P22D1 indicates that the powertrain control module has detected an abnormally high voltage on the control circuit for the turbocharger turbine inlet valve, which is the valve that regulates exhaust gas flow to the turbine. The circuit is typically commanded by a pulse-width-modulated ground signal, so a high voltage reading means the circuit is open, shorted to power, or the valve actuator has failed.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22D1

P22D1Turbocharger Turbine Inlet Valve Control Circuit High

P22D1 indicates that the powertrain control module has detected an abnormally high voltage on the control circuit for the turbocharger turbine inlet valve, which is the valve that regulates exhaust gas flow to the turbine. The circuit is typically commanded by a pulse-width-modulated ground signal, so a high voltage reading means the circuit is open, shorted to power, or the valve actuator has failed.

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.