It is very simple, you only need to insert the new key into the ignition hole in the car, gently twist the existing key at the ignition switch, then pull out, and then rotate the new key several times to complete the chip matching.
This method can successfully match the key chip, because the Mazda3 uses a key recognition system, and it is necessary to match the new key with the existing key in the car to achieve the key unlocking, starting and other functions.
It should be noted that when matching the key chip, it is necessary to ensure that the chip of the new key is readable, and the operation steps of the chip matching must be carried out in accordance with the official owner's manual or the relevant guidelines provided by the dealer to ensure the safety and effectiveness of the operation.
The matching method is as follows
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(1) Anti-theft remote control diagnostic program (1) Insert the ignition switch into the key, and put it in the OFF position, and open the driver's side door;
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(2) Anti-theft computer 9# foot tie for more than one second, and then take out the key, within 10 seconds, close the driver's side door, and lock the door on the car;
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(3) At this time the door lock will automatically open, if not automatically open the door lock may be bad line or the main computer is bad;
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(4) If the door lock is automatically opened, there should be a door lock action situation after pressing any key on the remote control within 10 seconds, and represent the cause of the failure.