ENGINE IMMOBILISER SYSTEM


  1. OUTLINE


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

      *: LHD Models

      Tech Tips

      When replacing the certification ECU (smart key ECU assembly) or making a new electrical key transmitter sub-assembly, key recognition code(s) must be registered. For details, refer to the Repair Manual.