P04C2
Generic code
Free on OBD DashX
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See which problems come with P04C2, how often it shows up in other vehicles, and how to fix it — step by step.
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What P04C2 means
- Fuel Fill Door Unlock Control Circuit High
Possible symptoms
- Check and replace the fuel fill door unlock control circuit fuse
- Inspect and repair any damaged wiring or connectors in the fuel fill door unlock control circuit
- Replace the faulty fuel fill door unlock control module
- Reset the vehicle's computer system and perform a relearn procedure for the fuel fill door unlock control circuit
Possible causes
- Loose or damaged wiring or connectors in the fuel fill door unlock control circuit
- Faulty fuel fill door unlock control module
- Corrosion or debris in the fuel fill door lock mechanism
- Short circuit or malfunction in the fuel fill door unlock control switch
- Damaged or faulty fuel fill door unlock actuator.
Possible solutions
- Fuel fill door cannot be unlocked using the central locking system or release button
- Fuel fill door remains locked and cannot be opened manually
- Fuel fill door may intermittently unlock and relock on its own
- Malfunction indicator lamp (MIL) may illuminate on the instrument panel
- Fuel fill door may fail to lock properly after refueling
Free on OBD DashX
P04C2 on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
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