OBD-II code · Powertrain (generic)
P04B6 Fuel Fill Door Stuck Closed
Same as P04B5 with the door stuck closed - the user cannot refuel until the fault is cleared.
Is it safe to drive with P04B6?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLatch jammed or actuator stalled
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.2 h
- Emissions test
- Usually unaffected
- Parts involved
- Fuel Fill Door, Fuel Fill Door Actuator
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.