ENGINE IMMOBILISER SYSTEM


  1. OUTLINE


    1. For models with the entry and start system: The engine immobiliser system compares the ID code that is registered in the certification ECU (smart key ECU assembly) with the ID code of the transponder chip that is embedded in the electrical key transmitter. The system unsets if these ID codes match. Thus, the certification ECU (smart key ECU assembly) and the ECM communicate with each other to authorize fuel injection and ignition, enabling the engine to start.

      Tech Tips

      When replacing the certification ECU (smart key ECU assembly) or making a new electrical key transmitter, key's recognition code(s) must be registered. For details, refer to the corresponding Service Bulletin for this model.

    2. For models without the entry and start system: The engine immobiliser system compares the ID code that is registered in the transponder key ECU assembly with the ID code of the transponder chip that is embedded in the ignition key. The system unsets if these ID codes match. Thus, the transponder key ECU assembly and ECM communicate with each other to authorize fuel injection and ignition, enabling the engine to start.

      Tech Tips

      When replacing the transponder key ECU assembly or making a new ignition key, the key's recognition code(s) must be registered. For details, refer to the corresponding Service Bulletin for this model.