2006 Mazda 6 key issue

gregmran, Sep 13, 5:31am
Hey folks. Have just replaced the casings for my keys. key will lock and unlock the vehicle but will not allow it to start. Any ideas on my next move? Cheers, Greg/.

kazbanz, Sep 13, 5:36am
Grab the OLD casing and hold it VERY close to the key in the ignition.see if the car starts.--you might have to swap ends
I'd put money the chip is in the old casing.

gregmran, Sep 13, 5:57am
Just tried that. no go. Have tried the shut/open/on/off procedure and it does everything its supposed to, except the security light flashes and it won't start.

supernova2, Sep 13, 9:50am
What happens if you swop them back?

gregmran, Sep 13, 4:12pm
nothing. tried that

bigfatmat1, Sep 13, 5:45pm
Have you dropped a the tiny transponder out of the casing?

saxman99, Sep 13, 6:33pm
This. Happens very easily without being noticed. Search the floor where you took apart the old key very carefully.

gregmran, Sep 25, 12:42pm
Right you are sir!
What a flaming idiot! Thanks all for your help