Powertrain, generic · Hybrid propulsion

P0CCB Charge Port Door A Open Request Switch Circuit Intermittent/Erratic

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0CCB flags a charge flap A open request switch whose signal jumps between states without a matching press, or drops out briefly. Such signals usually come from loose terminals, a cracked solder joint in the switch or a harness that flexes with a door or body panel. No manufacturer documents this code publicly; GM's Volt tables of 2011 and 2012 cover the same switch only with P0CC7, P0CC9 and P0CCA, which use six of eight samples as a filter and would hide short dropouts. CARB 13 CCR 1968.2 (e)(15) makes intermittent checks mandatory only for emission-related inputs, so a comfort switch like this one rarely carries one. The GM charge port patent shows how the button press leads the controller to fire the flap actuator. The driver sees the flap answer only now and then.

Likely causes

Loose or spread terminal at the switch or module connector
Cracked solder joint or worn contact inside the switch
Harness damaged where it flexes with a door or panel

Symptoms

  • Charge flap opens only occasionally when the button is pressed
  • Fault comes and goes, often with temperature or road vibration

Repair estimate

DifficultyMediumDIY possible
Parts and labour€50–300
Time0.5–2.5 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

P0CC6P0CC7P0CC8P0CC9P0CCAP2E97

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