Powertrain, generic · Hybrid propulsion

P0CC7 Charge Port Door A Open Request Switch Circuit

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

P0CC7 is the general circuit fault of the button that requests opening of charge flap A. GM reads this switch as a percentage of its reference and expects defined states; on the 2011 to 2013 Chevrolet Volt the code sets when the reading sits in a forbidden band between 65.9 and 81.6 percent, which indicates a wrong resistance, for instance a damaged switch or a partly broken wire. Six bad readings out of eight (50 ms steps in 2011/2012, 500 ms in the 2013 table) trigger it, and it is a Type B code with the lamp after two trips. Hard shorts are split off into P0CC9 (to ground) and P0CCA (to battery voltage); unstable signals belong to P0CCB. In daily use the flap may ignore the button, while opening via the key or screen can still work.

Likely causes

Open request switch with wrong internal resistance
Partly broken wire or corroded connector raising circuit resistance
Moisture in the switch housing
Faulty switch input in the control module

Symptoms

  • Charge flap does not open with the button
  • Warning lamp after two trips (GM Volt)
  • Opening via key, app or screen still possible on some models

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

P0CC6P0CC8P0CC9P0CCAP0CCBP2E93

References: gsi.ext.gm.com, gsi.ext.gm.com.