P04B6
Fuel Fill Door Stuck Closed
Generic OBD-II
Real-world scan data
Seen in
60
scans in the past year
Found in
<0.1%
of scans
<0.1%
of scans that found faults
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check for any obstructions blocking the fuel fill door and remove them if found.
- Inspect the fuel fill door latch mechanism for any damage or malfunction, and repair or replace as necessary.
- Apply lubricant to the fuel fill door latch mechanism to prevent sticking or binding.
- If the issue persists, check for any wiring or electrical problems related to the fuel fill door and address them accordingly.
Common causes
Most likely first
- Faulty fuel fill door latch mechanism
- Broken or damaged fuel fill door hinge
- Obstruction or debris blocking fuel fill door movement
- Electrical issue with the fuel fill door release switch or circuit
- Malfunctioning fuel fill door actuator motor
How to diagnose & fix
Work through it in order
- Difficulty opening the fuel fill door
- Unable to refuel the vehicle
- Fuel odor inside the vehicle
- Rattling or buzzing noise near the fuel fill area while driving
- Fuel spillage during refueling.
Read & clear P04B6 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.