Along the same lines,...I have an '04 150,..and the code that was on the card, has never worked,..I had bought it used from a dealer,...I took it back and the service manager said it wouldn't help to pull the seat, because it was an "add on" keypad,...he got in,..cycled the ign. key off & on about 20 times,..and the door locked,...he said there, try the code now,..it worked!! he had reprogrammed it,...cool,...free,...