HI,

I recently bought a 2005 Mazda 6 2.0 TS.

The remote locking does not work. Reading through many forums the common reprogramming guide is.

open drivers side door.
Insert key into ignition and turn to on, then off - (3 times)
close door and open door 3 times (or press button on door 3 times)

With my car this does nothing. However I read on a post somewhere that it can be 4 cycles of the key, and possibly more.

When I do 4 cycles of the key instead of 3, the car signals with a lock cycle. Then a few seconds later the warning lights on the dash blink twice. I get no response from pressing buttons on the fob.
When i try 5 cycles of the key it cycles the locks more than once, then a few seconds later cycles the locks again, and again.
I have tried 6 too and it's similar to 5 or might be the same. I didn't analyse them enough.
In any of the above procedures I don't seem to get a response from the key.

Does anyone know anymore about these different modes it seems to go into?

I have also tried a ecu reset by disconnecting the negative terminal from the battery.

I bought a second remote from ebay and it has the same part number (i think), "pa-mxd6-gf50" this is on the plastic part that covers the electronics. However the fcc number is different on them. Does this matter?

Thanks

Rob