1) After the engine ECU and the whole car lock core replacement, anti-theft alarm indication lamp flashes.
2) After the anti-theft alarm indication lamp flashes to confirm, insert a main ignition key (black) to the ignition switch.
3) About one second, burglar alarm light is off, the ignition key that registration is complete, then, You can also use the Launch X431 GDS and Launch X431 V+ Pro3 to check.
4) after the main ignition key registration is complete, burglar alarm indicator lights again.
5) anti-theft alarm status indicator lights after being confirmed, then pull out the ignition key. Insert two main ignition key (black) to the ignition switch.
6) About 1 seconds, burglar alarm light is off, the ignition key has been registered. After registration is complete, burglar alarm indicator lights again.
7) anti-theft alarm status indicator lights after being confirmed, then pull out the ignition key.
8) Insert the first three deputy ignition key (gray) to the ignition switch.
9) About 1 seconds, burglar alarm light is off, the ignition key has been registered.
10) After Unplug this ignition key, if burglar alarm LED flashes, which means that the registration is successful. If you want a quick registration, you can use the OBD diagnostic tool.
Note:
1) For the anti-theft ECU and engine ECU set as one unit (ECU), regardless of model, the ignition key of the registration of such methods are applicable.
2) registered ignition key sequence: the 1st main ignition key, the 2nd main ignition key, the 3rd Vice ignition key. If the ignition key to change the registration order, it can not properly registered.
3) If you do not make the correct registration method will cause the engine ECU recognizes only a handful of the ignition key, the ignition key into the ignition switch first one, so the other two could not start the engine, you need Autel MaxiSys MS908 and Autel MaxiDas DS708 diagnostic tool to repair cars.
Source: http://www.focalobd.com/blog/toyota-car-ignition-key-registration-steps/
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