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It is under the glove box, behind the plastic below the glove box (passenger side obviously, for LHD models, e.g. USA, Canada).
To access it, you have to first pull out the glove box, as there are a few bolts holding the plastic shield which is below the glove box, and those bolts are hidden behind the glove box.
To pull out the glove box, use flathead screwdriver or plastic tool to pull out three plastic clips/fasteners on the bottom of the glovebox (they are black so hard to see), and also on the top. Once those are out, you have to stick your flathead screwdriver in the behind the black interior of the glovebox, at the top right and left to pry it out. Then just pull it out. As you pull it, the guides that hold the glovebox door will be in your way, so carefully pry off the plastic clips that hold the guides of the door to the door, and pull out the glove box. Remember how you did all this to be able to put it all together.
Now bolts that hold the bottom plastic should be visible at the bottom of the glove box, which was covering those bolts. Right one should be easy, left one less so... but I managed to unscrew it just with regular Lexus tools from the toolbox in the trunk. Use force if they are truly stuck...
Once those bolts are out, you have to unscrew plastic screws/fasteners at the very bottom of that plastic shield - those would be where your toes are when you sit in passenger seat. You have to stick your head way in there to see them, quite uncomfortable... use a flashlight to see them. They are hard to see, but easy to unscrew once you find them.
Now, pull out the plastic shield and the ABS ECU should be right in front of you. It should say something like this on it:
"A.B.S. (ESC)
Toyota 89541-50020
079400-0711 12V
DENSO MADE IN JAPAN
Good luck!
What else can I help you with?
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205x65R15
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The starter is located in the block. You need to take the intake manifold off to get to it
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A 1990 LS400 has 250 horsepower as rated by the factory.
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Look forward to a bill of over $2000! I had my 92 Lexus LS400 converted for $2,456! :(
What year did the Lexus ls400 came with built in cell phone?
In 1990 (first generation) -I still have it :)
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Radio in 1990 Lexus LS400 stopped working, possible answer?
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Remove the retaining ring from the top of your 1990 Lexus ignition switch. The ignition switch will slide out. Remove the wiring harness.
Where is the window relay for a 1990 Lexus ls400?
The window relay for a 1990 Lexus LS400 is located in the engine compartment fuse box. To access it, open the hood and locate the fuse box on the driver's side near the battery. Inside the fuse box, you'll find the window relay, which can be identified by the diagram on the cover. Always consult the vehicle's manual for specific details and diagrams.
Where can you find the timing reset button on a 1990 Lexus LS 400?
I have a 1990 LS400 and I have never heard of a timing reset button. The timing is set by the timing belt and controlled by the computer. Let me know if you find out there is such a thing. vbd
