What does code P22D4 mean?

Q: What does code P22D4 mean?

Turbocharger Turbine Inlet Valve Position Sensor Circuit. P22D4 indicates that the powertrain control module (PCM) has detected an abnormal signal from the turbocharger turbine inlet valve position sensor circuit, which monitors the variable geometry turbocharger's vane or valve position. The PCM compares the sensor's voltage or resistance against expected values and sets this code when the signal falls outside the valid range or is inconsistent with other engine parameters.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22D4

P22D4Turbocharger Turbine Inlet Valve Position Sensor Circuit

P22D4 indicates that the powertrain control module (PCM) has detected an abnormal signal from the turbocharger turbine inlet valve position sensor circuit, which monitors the variable geometry turbocharger's vane or valve position. The PCM compares the sensor's voltage or resistance against expected values and sets this code when the signal falls outside the valid range or is inconsistent with other engine parameters.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.