Ok, finally figured out what the problem is. The key has a mechanical sensor which is NOT directly part of the Ignition Lock Cylinder, but it is attached right next to it and senses a little piece of plastic that IS part of the Ignition Lock Cylinder. The solution is actually piece of cake and...
My car 2010 CX 9 "thinks" the key is ALWAYS in the ignition. It wouldn't bother me much, but it does NOT allow the remotes to work. Occasionally, like 1 of every 10 times, when I remove the key after driving, the lock and key works as designed and the remote works (no beeping when I open the...
Yes you can (FORscan)
I just made 2 new keys for my 2010 Mazda CX 9. I followed more or less the instructions here: https://www.rx8club.com/series-i-do-yourself-forum-73/diy-programming-new-key-when-you-only-have-one-forscan-262637/ and here...
I am having exactly your same problem. What did solve your issue? Did replacing the cylinder lock solved your problem or was it possible to fix issue otherwise?
chc