Had a customer come in with problems and found the ecu to be bad. By dwilder, October 31, 2007 in 90 - 00 Lexus LS400. Click HERE if you have lost the keys to your Lexus. ... Lexus LS400 97+ All: Lexus All Others 98+ This anti theft system is quite secure. The system will also immobilise, or lock, the engine until it is reset. I have a 1995 Lexus LS400 and the immobiliser will not shut off i.e. Most models of the Lexus LS400 sedan are designed with an antitheft system. If any of the doors, the boot or the hood is forcibly unlocked, or the battery terminal is disconnected and reconnected with the vehicle locked, the alarm will activate. 1 Refer to the Lexus Vehicle Support chart located on TIS, under Diagnostics - Immobilizer Reset - Reference Documents. For immobilizer reset you will only read and/or write the data inside them. 1998-2001 Lexus LS400. I replaced the MPX body control to fix the problem. Introduction: Modern Toyota and Lexus vehicles use a key with an embedded RFID chip as an added means of theft prevention. Reply to this topic; Start new topic; Recommended Posts. 1998-2000 Lexus SC300. 2001 Lexus IS300. 1998-2000 Lexus LX470. After that my remote key stop working. The applicable vehicles are listed below. The key is read by the computer and if it matches, it will enable all systems to start the car. 1998-2000 Lexus SC400 . I got a problem with the wiper control. 1999-2003 Lexus RX300. LEXUS LS400 1997 (93C66) LEXUS LX470 2003-2004 (93C66) SCION 2005 (93C66) TOYOTA 4RUNNER 2003-2004 (93C66) TOYOTA AVALON 1998-2002 ... unless you are designing a system. Use the information provided here in a legal and appropriate manner. This is also refered to as an Immobilizer Reset, or returning the immobilizer to Registration Mode. Hello, I bought a 1999 Lexus LS400 1 and a haft year ago. Lexus LS400 / Lexus LS430 / Lexus LS460 / 500h / 600h Club ; 90 - 00 Lexus LS400 ; Reset Security Reset Security. The designers of the Lexus navigation system have developed a reputation for systems that can track down even the most "tough to find" locations. I ignored the problem and keep using the car. It was very reliable and I never had a problem with it. Disclaimer: The engine immobilizer is a security device. dwilder 0 Posted October 31, 2007. Engine immobilizer system Lexus ES / Lexus ES 350 user manual / Before driving / Theft deterrent system / Engine immobilizer system The vehicle's keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle's on-board computer. This car is equipped from factory with an immobilizer system. LS400, LS430, LS460, LS600H, LX470, LX570, RX300, RX330, RX350, RX400H, RX450H, SC300, ... vehicle is capable of being reset. Stumbled on this trick. 2. Review the new security authorization process and chose the option that best supports your L-SB-0025-14 Rev2 July 7, 2014 Immobilizer and Smart Key Reset Service Category Vehicle Interior Section Theft Deterrent/Keyless Entry Market USA Applicability YEAR(S) MODEL(S) ADDITIONAL INFORMATION 1997 – 2015 CT200H, ES300, In 1998, Toyota began equipping some of their more popular vehicles with a transponder based imnmobilizer system. Share Followers 0. 1998-2000 Lexus GS400. But electronics by any company, no matter their reputation, can run into problems. Resetting Lexus LS400 engine ECU (1994–2000) It is recommended that the engine ECU is reset after any engine performance modifications have been made to the vehicle, including using a higher octane fuel, to accelerate the learning of any new parameters. For immobilizer Reset you will only read and/or write the data inside them embedded RFID as... Immobilizer system Lexus LS460 / 500h / 600h Club ; 90 - 00 Lexus LS400 97+ All Lexus. 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