OBD-II code · Powertrain (generic, extended)
P22D1 Turbocharger Turbine Inlet Valve Control Circuit High
Turbine inlet valve drive line stuck high — short to B+. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
Is it safe to drive with P22D1?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyShort to B+
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- Turbine Inlet Valve
Related codes
- P22CFTurbocharger Turbine Inlet Valve Control Circuit/Open
- P22CETurbocharger Compressor Outlet Switching Valve Stuck Closed
- P22D0Turbocharger Turbine Inlet Valve Control Circuit Low
- P22D2Turbocharger Turbine Inlet Valve Stuck Open
- P22D3Turbocharger Turbine Inlet Valve Stuck Closed
- P22D4Turbocharger Turbine Inlet Valve Position Sensor Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.