Powertrain, generic · Hybrid propulsion

P0CD2 Charge Port Door A Unlock Control Circuit Performance

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

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.

Likely causes

Flap frozen, stuck to the seal or binding at the hinge
Weak or mechanically blocked unlock actuator
Misaligned charge port housing or hinge pin (GM PI0936)
Position sensor not registering the open flap

Symptoms

  • Flap does not open, especially in frost
  • Warning lamp after two trips (GM Volt)

Repair estimate

DifficultyMediumDIY possible
Parts and labour€0–500
Time0.3–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

charge port door a unlock actuatorwiring harnesshybrid control module

Related codes

P0CD1P0CD3P0CD4P0CCCP0CCDP2E9E

References: gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov, static.nhtsa.gov.