OBD Codes List

Diagnostic reference · P22D1

P22D1

Turbocharger Turbine Inlet Valve Control Circuit High

System
Injector circuits (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P22D1 means Turbocharger Turbine Inlet Valve Control Circuit High.

Where it lives

For P22D1, the valve sits on the circuit this code reports. The description of P22D1 reports a fault at the valve.

Check these first

  • A turbine inlet valve control wire shorted to voltage
  • An open turbine inlet valve control circuit
  • A failed turbine inlet valve actuator
  • High resistance in the turbine inlet valve circuit

What to do next

  1. Command the turbine inlet valve on a scan tool
  2. Test the control wire for a short to voltage
  3. Check the turbine inlet valve circuit for an open
  4. Measure resistance through the valve circuit
  5. Replace the turbine inlet valve actuator if the circuit tests good
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.