October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Immobilizer Programming (Except PRIUS): Notes

NOTE: In the case of having lost all the already registered master ignition keys, you are not able to do additional registration or deletion of ignition key codes. You must change the Engine Control Module (ECM) and then perform ignition key registration.