Fuel Fill Door Lock Position Sensor/Switch Circuit High

Where it lives

For P04C6, the sensor sits on the circuit this code reports. The description of P04C6 reports a fault at the sensor.

Check these first

• A short to power in the lock position sensor circuit
• A failed fuel door lock position sensor
• An open in the lock position sensor circuit
• A jammed fuel door lock mechanism

What to do next

1. Check the lock position sensor circuit for a short to power
2. Read the fuel door lock position sensor on a scan tool
3. Inspect the fuel door lock mechanism for a jam
4. Replace the lock position sensor if the signal stays high
5. Clear the code and retest

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