P04BC

Fuel Fill Door Lock Control Range/Performance

Severity

✅ Low

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$22–89 (est.)

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

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