General Information: General Description

WARNING: This page is about a different variant/trim than selected.

The vehicle immobilizer system consists of the PCM, the SMARTRA 3 and ignition keys with built-in transponder.

The PCM carries out the check of ignition key by special encryption algorithm with SMARTRA 3 and Transponder.

The encryption algorithm (between PCM and SMARTRA 3) is the one offered from BOSCH.

The encryption algorithm (between PCM and Transponder) is Hitag type 2 which is a high level system. With IGN ON, the PCM executes the key Authentication after SMARTRA 3 authentication. The Engine can be started when the key authentication is confirmed by the SMARTRA 3.

The Key teaching procedure starts with PCM request of PIN from Scanner. The "virgin" PCM stores the PIN and the key Learning can be started. The "learnt" PCM compares the PIN from tester with the vehicle password in Transponder. If the data are correct, the key Learning can be started.

Scanner requests the Learning of the first key, the SMARTRA 3 is registered at first and then the first key is registered by PCM. If the SMARTRA 3 status is learnt and PIN number is different, the SMARTRA 3 will return the incorrect PIN data to the PCM. In this case, The PCM can't execute the key learning process.