P04C7
Fuel Fill Door Lock Position Sensor/Switch Circuit Intermittent/Erratic
Generic OBD-II
Common symptoms
What you'll notice
- Check for loose or damaged wiring connections related to the fuel fill door lock position sensor/switch
- Inspect and clean the fuel fill door lock position sensor/switch for any debris or corrosion
- Replace the fuel fill door lock position sensor/switch if it is faulty or malfunctioning
- Inspect the fuel fill door and its components for any obstructions or damage that may be affecting the position sensor/switch
- Reset the error code and monitor for any reoccurrence. If the issue persists, further diagnostic testing may be required.
Common causes
Most likely first
- Loose or faulty wiring connections related to the Fuel Fill Door Lock Position Sensor/Switch
- Malfunctioning Fuel Fill Door Lock Position Sensor/Switch
- Damaged or corroded connectors or terminals in the sensor/switch circuit
How to diagnose & fix
Work through it in order
- Difficulty or inability to open or close the fuel fill door
- Fuel fill door locks and unlocks on its own
- Fuel fill door may not lock properly or stay closed
- Malfunction indicator lamp (MIL) or check engine light may illuminate
- Erratic or intermittent behavior of the fuel fill door lock position sensor/switch circuit
Read & clear P04C7 yourself
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