P04BF
Fuel Fill Door Unlock Control Circuit/Open
P04BF is an OBD-II diagnostic trouble code meaning: Fuel Fill Door Unlock Control Circuit/Open. Common causes: open or short circuit in wiring harness, malfunction of the electromechanical hatch lock. Estimated repair cost: $22–167.
Symptoms
- The fuel filler flap does not open when the button is pressed
- Error indication on the dashboard
- The hatch lock is unstable
Causes
- Open or short circuit in wiring harness
- Malfunction of the electromechanical hatch lock
- Problems with the relay or circuit fuse
- Malfunction of the hatch opening button
- Problems with the control unit
How to Fix
- Check the fuse of the corresponding circuit
- Inspect the wiring harness for damage
- Check the operation of the electromechanical lock
- Test the hatch release button
- Carry out diagnostics of the control unit
Related codes
Error P04BF by Vehicle Brand
FAQ
What does the P04BF code mean?
P04BF is an OBD-II diagnostic trouble code that indicates: Fuel Fill Door Unlock Control Circuit/Open
What causes a P04BF error code?
The most common causes of P04BF include: Open or short circuit in wiring harness; Malfunction of the electromechanical hatch lock; Problems with the relay or circuit fuse; Malfunction of the hatch opening button.
How do I fix a P04BF diagnostic trouble code?
To fix P04BF: Check the fuse of the corresponding circuit. Inspect the wiring harness for damage. Check the operation of the electromechanical lock. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P04BF?
Yes, but get it checked soon
How much does it cost to fix P04BF?
The estimated repair cost for P04BF is $22–167. Actual cost depends on your vehicle, location, and labor rates.
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