ENGINE IMMOBILISER SYSTEM GENERAL


  1. OUTLINE


    1. The engine immobiliser system compares the ID code that is registered in the certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 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 and the ECM communicate with each other to authorize fuel injection and ignition, enabling the engine to start.

      Tech Tips

      When replacing the transponder key ECU or making a new ignition key, key recognition code(s) must be registered. For details, refer to the Repair Manual.

      *1: Models with smart entry and start system

      *2: Models without smart entry and start system