Bought new key fob off Amazon for my 2008 Mazda 6 once I program them my car went anti theft mode and indicator light is blinking fast when I try to turn car over key fob will let me unlock and lock doors his key will not start car any answers??

 

How was the remote programmed?

The process of key on & off x3 & door close & open x3 is only for the keyless entry. This has nothing to do with programming the immobilizer.

 

So what is the remedy for this situation??