Open request switch faulty or stuck in the closed position; Wiring short to voltage or damaged insulation in the switch signal circuit; Corroded, wet or loose connector at the switch or control module; Water ingress or debris in the charge port area or switch housing; Faulty charge port door control module or body control module input; Outdated or faulty control module calibration, where the manufacturer has issued a known fix.

P0CCA

Charge Port Door A Open Request Switch Circuit High.

Generic
Powertrain
Generic code
Low severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
C: AreaHybrid propulsion
CA: FaultThe specific fault in that area

What it means

P0CCA means the control module that manages the charge port door saw a voltage that was too high on the circuit for the door A open request switch. The switch may be stuck closed, or the wiring may be shorted to voltage or have a fault that pulls the signal high. The module can no longer trust the open request, so the charge port door may not respond normally. Exact switch type, location and circuit design vary by model.

Symptoms

Charge port door will not open when the button or switch is pressed
Charge port door opens or tries to open by itself, or keeps cycling
Warning light or message about the charging system or charge port
Unable to start charging because the door or connector cannot be reached
Open request button feels stuck or does not click normally

Possible causes

Open request switch faulty or stuck in the closed positionlikely
Wiring short to voltage or damaged insulation in the switch signal circuitlikely
Corroded, wet or loose connector at the switch or control modulepossible
Water ingress or debris in the charge port area or switch housingpossible
Faulty charge port door control module or body control module inputrare
Outdated or faulty control module calibration, where the manufacturer has issued a known fixrare

How to diagnose

Read all stored and pending codes and note any other charging, door or body control faults
Check freeze frame data and live data for the switch state, and see whether it shows pressed with no input
Visually inspect the switch, charge port area and door for damage, water, dirt or a sticking button
Inspect the wiring and connectors between the switch and the control module for chafing, corrosion, bent pins or moisture
Operate the switch while watching live data and check the state changes cleanly between pressed and released
Using the manufacturer wiring diagram, measure the supply, signal and ground at the switch connector to find a short to voltage or an incorrect signal level
Unplug the switch and check whether the signal reading drops to the expected value, which separates a bad switch from a wiring fault
Check for any manufacturer service bulletins or calibration updates for the model

How to fix

Replace the open request switch if it is stuck or reads incorrectly
Repair or replace the damaged wiring or short to voltage in the signal circuit
Clean, dry and re-secure corroded or loose connectors, and replace any damaged terminals
Fix the source of water or debris ingress and clean the switch area
Replace or recode the control module only after the wiring and switch are proven good and the manufacturer procedure calls for it
Apply a manufacturer calibration update if a known fault of this type is confirmed for the vehicle

Can I keep driving?

Low severity

The car can normally be driven as the fault mainly affects access to the charge port. Get it checked soon, as you may not be able to charge, and consult the handbook for the manual door release if you need to reach the port.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.