Fuel Fill Door Lock Position Sensor/Switch Circuit

Where it lives

For P04C3, the circuit described runs through the sensor. The description of P04C3 reports a fault at the sensor.

Check these first

• A failed fuel door lock position sensor
• An open or shorted lock position sensor circuit
• Corrosion at the lock position sensor connector
• A misaligned fuel door lock

What to do next

1. Read the fuel door lock position sensor on a scan tool
2. Check the lock position sensor circuit for an open or short
3. Inspect the lock position sensor connector for corrosion
4. Replace the sensor if the signal does not change with the lock
5. Clear the code and retest

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