Code result
P2C7C
Turbocharger Turbine Inlet Valve Supply Circuit Low
High severity
What it means
The supply voltage to the turbocharger turbine inlet valve actuator is below the expected window. 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?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Supply fuse blown
highOne of the most commonly reported causes for this code — check this first.
Supply wire shorted to ground
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2C7C freeNo credit card required