Powertrain, generic · Hybrid propulsion

P0CC8 Charge Port Door A Open Request Switch Circuit Performance

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0CC8 covers a plausibility fault of the charge flap A open request switch: the signal is electrically within limits, yet its behaviour makes no sense, for example a button that reports pressed for far too long or never changes state over many wake-ups. No manufacturer documents this code publicly. GM's Volt tables of 2011 to 2013 monitor the same switch only for invalid range, low and high (P0CC7, P0CC9, P0CCA), so the performance check is not used there. CARB 13 CCR 1968.2 (e)(15) requires rationality checks only for inputs that affect emissions or serve another diagnostic, which explains why such comfort inputs are often left out. A GM patent shows the typical layout, in which the release button makes the controller energize the flap actuator. Expect a flap that reacts erratically to the button.

Likely causes

Mechanically sticking or jammed open request switch
Worn switch contact giving an implausible signal
Wiring fault that keeps the signal in an unexpected state

Symptoms

  • Charge flap opens unexpectedly or ignores the button
  • Message about the charge flap in the instrument cluster

Repair estimate

DifficultyMediumDIY possible
Parts and labour€50–300
Time0.5–2 h

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

Parts involved

charge port door a request switchwiring harnesshybrid control module

Related codes

P0CC6P0CC7P0CC9P0CCAP0CCBP2E94

References: law.cornell.edu, patents.google.com, gsi.ext.gm.com.