P2C1DB Camshaft Profile Actuator Position Sensor C Circuit High 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
- P2C1D, the circuit-high code for exhaust position sensor C on bank 1, covers a feedback line pulled towards supply voltage, usually by a short to power. No carmaker publishes a use for it. On GM's L3B the matching codes P2C15 and P2C19 are evaluated with the output off, a short being declared at a resistance up to 0.5 ohm against the controller supply; there they also appear in the main list of harness chafing bulletins. With only two exhaust Hall sensors on that engine, sensor C does not exist. CARB obliges every electrical input of a lift system to be checked for out-of-range values, so a future user would likely flag this fault with a warning lamp and freeze exhaust lift switching. Inspect the wiring for contact with live circuits first.
- What you may notice
- Check engine light on
- Exhaust lift switching suspended
- Likely causes
- LikelySensor C line rubbing against a powered wire
- PossibleInternal short to supply in the actuator
- RareFaulty driver stage in the ECM
- 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: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.