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Home >> Lexus >> 2011 >> CT 200h L4-1.8L (2ZR-FXE) Hybrid >> Repair and Diagnosis >> Starting and Charging >> Starting System >> Keyless Starting System >> Description and Operation >> Engine Immobilizer System
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Engine Immobilizer System





THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILIZER SYSTEM: SYSTEM DIAGRAM





Function of Main Components









SYSTEM DESCRIPTION

1. ENGINE IMMOBILIZER SYSTEM DESCRIPTION

(a) The engine immobilizer system determines whether or not to enable starting of the hybrid control system based on a comparison of the key ID code and the vehicle pre-registered code. The engine immobilizer system compares the vehicle certification ECU (smart key ECU assembly) pre-registered ID code with the key-embedded transponder chip ID code. If the ID codes do not match, the engine immobilizer system activates and the hybrid control system cannot be started. The certification ECU (smart key ECU assembly) manages communication with the hybrid control system, power management control ECU, transmission control ECU assembly and ID code box (immobilizer code ECU). When the ID codes of the transponder chip and certification ECU (smart key ECU assembly) match, the certification ECU (smart key ECU assembly) authorizes the starting of the hybrid control system.

2. START FUNCTION PROBLEM SYMPTOMS









* *1: Refer to Problem Symptoms Table for Smart Access System with Push-button Start (for Start Function).
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