My mate had similar problem with his 05 aventura, driver door would lock from the button inside the car but from the remote you could still open it from outside, his mechanic said needs a new lock, got that and fitted it, still same so went to nissan and they quoted him 1100 euro for a new bcm, so we said we would get one from a breakers and sort it, nissan said it will have to be coded or car wont start and second hand ones cant be re coded, they were right on the not starting so i did a little bit of my electronics magic and coded it myself, we got the used bcm for 50euro coz the breakers yard knew they cant be re used, so the moral of the story is YOU CAN RE CODE USED BCM MODULES NO MATTER WHAT NISSAN TELL YOU, i have done three navara ones since and two primastar.