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.
Medium severity. Can I keep driving?If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
Symptoms
- Charge flap opens only occasionally when the button is pressed
- Fault comes and goes, often with temperature or road vibration
Most 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
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
What each character of P0CCB means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- C: Subsystem depends on the code range
- CB: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0CCB?
If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
What causes code P0CCB?
The most common causes are: 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.
Related codes
- P0CC6Charge Port Door A Open Request Switch Wake-Up Circuit
- P0CC7Charge Port Door A Open Request Switch Circuit
- P0CC8Charge Port Door A Open Request Switch Circuit Performance
- P0CC9Charge Port Door A Open Request Switch Circuit Low
- P0CCACharge Port Door A Open Request Switch Circuit High
- P2E97Charge Port Door B Open Request Switch Circuit Intermittent/Erratic
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.