OBD-II code · Powertrain (generic, extended)
P2C7B Turbocharger Turbine Inlet Valve Control Performance
The turbocharger turbine inlet valve does not respond to commands within the expected time window. Mechanical resistance or actuator weakened.
Is it safe to drive with P2C7B?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyIncreased friction in valve assembly
- PossibleActuator force degraded
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
- 2–8 h
- Emissions test
- Likely to fail
- Parts involved
- Turbo Turbine Inlet Valve, Wiring Harness, Ecm
Related codes
- P2C78Active Grille Air Shutter Module D Over Temperature
- P2C79NOx Adsorber - Sulfur Limit Exceeded
- P2C7ASCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 2
- P2C7CTurbocharger Turbine Inlet Valve Supply Circuit Low
- P2C7DTurbocharger Turbine Inlet Valve Motor Driver High Current
- P2C7ETurbocharger Turbine Inlet Valve Motor Driver Overtemperature
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.