Automatic Key Code Registration (New Registration)

The new registration of the key codes (immobilizer codes) is made automatically. When registering a new transponder key ECU, the key codes must be registered. A new transponder key ECU starts in the automatic key code registration mode. In this mode, a maximum of 4 key codes for 3 master keys and 1 sub key can be registered. Since the transponder key ECU can distinguishes types of keys, any registration order is acceptable. Proceed as follows:

1. Insert the key into the ignition key cylinder. The security indicator will turn ON for approximately 1 second and then turn OFF.
2. Remove the key. The security indicator will turn ON.
3. Repeat the first two steps, to register another key. When no key is inserted into the key cylinder while the system is in automatic key code registration mode, the security indicator remains ON.

When the maximum number of the key codes is registered, the security indicator remains OFF until the last key registered is removed. After the key is removed, the security indicator starts blinking. When the immobilizer system is operating normally and the key is pulled out, the security indicator blinks continuously.

If the key code registration has failed in the automatic key code registration mode, code 2 - 1 will be output from the security indicator. Trying to register an already registered key will cause code 2 - 2 to be output when the key is inserted. If the number of registered key codes exceeds the limit, code 2 - 3 will be output from the security indicator.

The automatic key code registration mode can be forced to end, when at least 1 key code (immobilizer code) for the master key has been registered. If not using the scan tool, turn the ignition switch ON and OFF 5 times within 10 seconds using the already registered master key. If using the scan tool, follow the instructions on the scan tool display to end new key code registration mode.