tr Lexus / Toyota LS-400 V8 TRC ECU 88240 50071 SC-400 SC-300 / 89630-50030 / 079500-0230 / 100795-0201 Up for sale is a Working, in excellent condition Lexus LS-400 V8 TRC control ECU. Denso Part numbers listed at top This unit offers a 30 day functionality warranty. As always with this type of component your best bet is to match the part number to the one on your original ECU. If your car does not have ssues but you intend to keep it a while, I recommend our customers keep an extra ECU in the trunk. These units now have to be special ordered from most dealers new for big $$ (often times over $1000!), and you can never find one when you need one. Even now finding a good one second hand is getting to be quite difficult as these cars get older.