Dutchman

So I know that the DTE FLI DATA ERROR is widely discussed, however, I am interested in the fix and if I can pull it off. I am not a mechanic by any means, so I could use some guidance. I have 2005 V6 conv. I think that I can access this from under the rear seat, it appears to be as easy as getting the $46 fuel level sending unit, removing the pump, replacing the sending unit and reinstall...am I missing something. I think I have lived with this error popping up long enough... I would have thought after all this time a youtube would have been made, but didn't find one.

Thanks