P04BC
Fuel Fill Door Lock Control Range/Performance
P04BC is an OBD-II diagnostic trouble code meaning: Fuel Fill Door Lock Control Range/Performance. Common causes: malfunction of the sunroof lock solenoid, open/short circuit in wiring harness. Estimated repair cost: $22–89.
Symptoms
- The fuel filler flap does not open/close
- Indication of an open hatch when closed
- Electric drive clicks without lock activation
Causes
- Malfunction of the sunroof lock solenoid
- Open/short circuit in wiring harness
- Oxidation of control circuit contacts
- Mechanical jamming of the lock or rods
- Problems with the BCM (Body Electronics Module)
How to Fix
- Visual inspection of the mechanical part of the lock
- Checking the functionality of the solenoid
- Control circuit diagnostics (resistance, voltage)
- Testing signals from BCM
- Replacing faulty components
Related codes
Error P04BC by Vehicle Brand
FAQ
What does the P04BC code mean?
P04BC is an OBD-II diagnostic trouble code that indicates: Fuel Fill Door Lock Control Range/Performance
What causes a P04BC error code?
The most common causes of P04BC include: Malfunction of the sunroof lock solenoid; Open/short circuit in wiring harness; Oxidation of control circuit contacts; Mechanical jamming of the lock or rods.
How do I fix a P04BC diagnostic trouble code?
To fix P04BC: Visual inspection of the mechanical part of the lock. Checking the functionality of the solenoid. Control circuit diagnostics (resistance, voltage). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P04BC?
Yes, but get it checked soon
How much does it cost to fix P04BC?
The estimated repair cost for P04BC is $22–89. Actual cost depends on your vehicle, location, and labor rates.
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