P2C14 code meaning
B Camshaft Profile Actuator Position Sensor A Circuit Low Bank 1
Powertrain system Generic code P2Cxx codes Check engine light
What P2C14 means
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.
P2C14 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2C14
- MIL on immediately
- No exhaust lift change, slightly higher consumption under light load
Common causes of P2C14
- Most likelySignal wire of exhaust sensor A rubbed bare against the head or a bracket
- PossibleInternal short to ground in exhaust actuator 1
- Less likelyEngine oil wicked into the actuator plug
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
B camshaft profile actuator pos sensor a b1Wiring harnessECM
What each part of P2C14 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| C | Area: hybrid propulsion. |
| 14 | The exact fault in that area. |
What to do next
- Note P2C14 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2C14
What does P2C14 mean?
P2C14 means "B Camshaft Profile Actuator Position Sensor A Circuit Low Bank 1". With P2C14 the ECM reports that the line of exhaust position sensor A on bank 1 is grounded. It is a generic code, so it means the same on every make.
Is it safe to drive with P2C14?
Drive gently and only to a workshop. With P2C14 the car can go into limp mode (reduced power) to protect itself.
Will P2C14 fail an emissions test?
Yes, it can. P2C14 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2C14 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P2C14 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.