P2C1BB Camshaft Profile Actuator Position Sensor C Range/Performance Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Range/Performance for exhaust position sensor C, bank 1: the signal is electrically fine but does not match the commanded pin movement of a third exhaust profile actuator. There is no public manufacturer documentation for P2C1B. The comparable test on GM's L3B (P2C13, P2C17) watches three Hall states per shift and also catches pin activity without a command; GM's engine has no third exhaust feedback, so the code stays unused there. CARB explicitly expects valve lift diagnostics to detect a single pin that does not reach its intended position, which is what such a code would cover. Mechanical causes such as a sticking pin, heavy oil sludge or a damaged sleeve groove would be more likely than wiring. Driving effect: lamp on, exhaust profile frozen.
- What you may notice
- Warning lamp on
- Exhaust lift held on one profile, possibly ticking from the head
- Likely causes
- LikelyActuator pin sticking or reacting too slowly
- PossibleSludge or wrong oil viscosity in the valve train
- RarePosition sensor reporting implausible levels
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.