Plug Autel IM508/ IM608 connector into OBD2, press
IMMO >> Accept >> Toyota >> System selection >> Immobilizer >> Immobilizer(H 8A/8E) >> Learn key
You must have a master key before you can clear or add other keys!
How to differentiate the master keys form the slave ones?
When the key is inserted into the ignition switch, it can be identified as the master key if the security lamp does not light up. If the lamp lights up for 1s and then goes out, it’s the slave key.
Insert the learned master key and turn ignition on.
Remove the key, insert the key to be learned and keep ignition off (If learning failed, try to keep ignition on when you perform this function again).
Leave the key in the ignition, waiting for 60 seconds…
Wait the lamp lights goes out.
Test the key, it can start the engine.
This is how easy to use Autel IM508 or IM608 Scan Tool programming a new ID8A key for Toyota Fortuner 2017-2021.