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Home >> Lexus >> 2007 >> RX 350 FWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Engine Immobilizer >> Engine Immobilizer System >> System Description
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System Description

The engine immobilizer system has been designed to prevent the vehicle from being stolen. This system uses a transponder key ECU that stores the key code of the authorized ignition key. If an attempt is made to start the engine using a non-authorized key, the transponder key ECU sends a signal to the ECM to prohibit fuel delivery and ignition, effectively disabling the engine.