Electrical wiring diagram for fuel filler door lock

There are a number of things that could cause this, but I would start with removing the relay and jumping pin 1 to 2 and see if the door opens. This will prove out the wiring and actuator.

If it does then we need to check the fuse that feeds pin 3 shown in the diagram.

Then we need to check to see if the BCM is grounding the relay.

You do this by putting your meter on battery positive and then touch the other lead to terminal 4 of the relay with the relay removed.

Then press the button. Does the meter read 12 volts? If it does then the BCM is seeing the button pressed and it is grounding the relay.

If the actuator works and the BCM is grounding the relay, and the fuse is okay, then the relay is the issue.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

I am attaching the wiring diagram and the relay location. Please let us know what you find with this. Thanks

You are welcome. We are looking forward to hearing back. Thanks for the update.

You are welcome. That is great info and as I stated, thanks again for continuing to come back.

Talk to you next time.