P2C10A 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
- P2C10 completes the sensor C group for the bank 1 intake camshaft: the feedback line of the third profile actuator is shorted to voltage. GM's L3B logic switches the output off and checks the line against controller power; 0.5 ohm or less in 4 of 5 samples, with supply above 11 V, sets a Type A code and the MIL straight away (19OBDG03D, 25OBDG03B). The code appears in the main DTC list of GM bulletins PIT5677 and 21-NA-149, which trace no-start, rough running and reduced power on 2019 to 2021 L3B Silverado and Sierra 1500 to harness wear at the camshaft carrier cover and nearby brackets, sometimes with blown fuses. No other maker documents the code publicly. Until repaired, actuator 3 takes no part in lift changes. Open: P2C0D, ground short: P2C0F.
- What you may notice
- MIL on immediately
- No lift change and no cylinder deactivation
- With harness damage, possibly stalling or no start
- Likely causes
- LikelyHarness wear at the camshaft carrier cover shorting to a live wire (GM bulletins)
- PossibleActuator 3 shorted internally to supply
- RareECM output stage faulty
- 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.