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Home >> Lexus >> 2012 >> CT 200h L4-1.8L (2ZR-FXE) Hybrid >> Repair and Diagnosis >> Accessories and Optional Equipment >> Antitheft and Alarm Systems >> Description and Operation >> Engine Immobilizer System >> System Description

System Description





THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: SYSTEM DESCRIPTION

1. ENGINE IMMOBILISER SYSTEM DESCRIPTION

(a) The engine immobiliser 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 immobiliser 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 immobiliser 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 (immobiliser 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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