Fuel Fill Door Unlock Control Circuit Low

Common symptoms

What you'll notice

• Check and tighten the fuel fill door latch or locking mechanism.
• Inspect and replace any damaged or frayed wiring connections in the fuel fill door control circuit.
• Test and replace the fuel fill door unlock control module if necessary.
• Reset the vehicle's onboard computer system to clear any error codes related to the fuel fill door unlock control circuit.
• Consult the vehicle's manual or contact the manufacturer for further diagnostic and repair guidance.

Common causes

Most likely first

1. Malfunctioning fuel fill door unlock control module
2. Faulty fuel fill door unlock switch
3. Damaged wiring or connectors in the fuel fill door unlock control circuit
4. Defective fuel fill door unlock relay
5. Low battery voltage affecting the fuel fill door unlock control circuit

How to diagnose & fix

Work through it in order

1. Fuel fill door does not unlock when using the interior control switch
2. Fuel fill door does not unlock when using the remote keyless entry system
3. Fuel fill door does not unlock when using the exterior control switch near the fuel door
4. Fuel fill door only unlocks intermittently
5. Fuel fill door unlocks but has difficulty opening or closing.