P0CD2Charge Port Door A Unlock Control Circuit Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0CD2 is a functional test: after commanding charge flap A to unlock, the module waits for the position sensor to report the flap open. GM documents it for the Chevrolet Volt. The 2011 table allows 5 seconds, the 2012 and 2013 tables 13 seconds, and the 2013 version only runs above minus 12 °C. The test is skipped while P0CCC, P0CCE, P0CCF or P0CD1 is active, so P0CD2 means the electrics look fine but the flap did not move. It is a Type B code with the lamp after two trips. Frozen or binding flaps are a typical cause: GM bulletin PI0936 covers 2013 Volts whose flap would not open in the cold because of a misaligned hinge pin, and Porsche replaced jamming flap switching elements on the 918 Spyder.
- What you may notice
- Flap does not open, especially in frost
- Warning lamp after two trips (GM Volt)
- Likely causes
- LikelyFlap frozen, stuck to the seal or binding at the hinge
- PossibleWeak or mechanically blocked unlock actuator
- PossibleMisaligned charge port housing or hinge pin (GM PI0936)
- RarePosition sensor not registering the open flap
- Repair
- Medium · Often possible to do yourself.Typical cost: €0 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.