http://www.mazdas247.com/forum/showthread.php?123699361-Can-I-program-a-Smart-Key-myself
Straight from Ceric - "A common mistake people make is to have both Key1, Key2 and Key3 nearby while going through the procedure. That confuses the ECU. At any time during the process, only ONE key is present (detectable by ECU) near the CX9."
Straight from Ceric - "A common mistake people make is to have both Key1, Key2 and Key3 nearby while going through the procedure. That confuses the ECU. At any time during the process, only ONE key is present (detectable by ECU) near the CX9."