P2C14B Camshaft Profile Actuator Position Sensor A Circuit Low 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
- With P2C14 the ECM reports that the line of exhaust position sensor A on bank 1 is grounded. GM applies the check on the L3B 2.7 L while the driver is commanded on: a signal-to-ground impedance of 0.5 ohm or below, seen in four of five samples with the key in crank or run and more than 11 V, sets Type A with immediate MIL; the 2025 table 25OBDG03B adds a general enable flag but keeps the limit (19OBDG03D). Unlike P2C12 and P2C15, P2C14 does not appear in the main code list of PIT5677 or 21-NA-149, only among their search keywords. Typical causes are insulation worn through on the cylinder head or the generator bracket, or a shorted actuator. The exhaust sleeves of bank 1 stay where they are; the driver mostly notices the warning lamp.
- What you may notice
- MIL on immediately
- No exhaust lift change, slightly higher consumption under light load
- Likely causes
- LikelySignal wire of exhaust sensor A rubbed bare against the head or a bracket
- PossibleInternal short to ground in exhaust actuator 1
- RareEngine oil wicked into the actuator plug
- 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.