P04B5
- Powertrain
- Generic (SAE)
Not urgent
Unlikely to affect driveability. Worth resolving so the light does not mask a future fault.
Fuel Fill Door Stuck Open
This code is in our catalogue but has not yet been through editorial review, so the guidance below is limited to what our structured data supports. We publish deeper diagnostic content only after a code has been reviewed — here is why.
On vehicles with a motorised fuel fill door (no manual lever) the actuator and position switch report that the door is mechanically stuck open. The motor cannot retract it, typically due to a frozen or dirty hinge, broken cable, or jammed actuator.
A trouble code records what a control module measured. It does not identify which part failed. Test before replacing anything.
- Safe to drive
- Unlikely to affect driveability. Worth resolving so the light does not mask a future fault.
- Urgency
- Not urgent
- Will it pass emissions
- Not affected
- Check engine light
- Varies
| # | Cause | How often | Component |
|---|---|---|---|
| 1 | Hinge jammed by ice, dirt or debris | Very common | — |
| 2 | Actuator linkage or motor broken | Common | — |
| 3 | Carbon or debris buildup preventing free movement | Occasional | — |
Ordering reflects how often each cause is responsible in general, not a probability for your vehicle. Confirm by testing.
- Fuel Fill Door
- Fuel Fill Door Actuator
- Definition
- Generic code set (SAE J2012 / ISO 15031-6) via the OBDexopen database, dedicated to the public domain under CC0-1.0.
- Diagnostic guidance
- Written and reviewed in-house. See our editorial policy.
- Review status
- Awaiting review
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