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If the key doesn't have a battery you can remove, it might be powered by RFID. Try wrapping it in aluminium foil.


1

The smart key system you are referring to is specifically designed to work at very short distances requiring the key to be inside the car before it would start. When i worked at Mazda on cars with smart keys, the car had 4 antennas just to make the system work seamlessly with the short range in mind. There was an antenna in each front door and the trunk to ...



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