Hi I got a used Yaris key from ebay last week for £15, I had 2 keys already but one key had no insides only the blade for it, So I swapped the insides over and followed the instructions I found on here! First I programmed the key lock and unlock buttons which worked fine all done it 2 - 3 minutes, After that I Programmed the immobiliser side of the key which was also done in 2 - 3 minutes! The instructions were very easy to follow and like I say took a maximum of 6 minutes to do the key, So for