I think that the 2002 model is the same as the 2000 model.
If so there's no "brake module" per se.
Did you test the "light failure sensor" as described in the image above?
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Here are some images from the Lexus RX300 MCU15 series that shows the brake light circuit. I believe that this series covers the year range of your vehicle.
@M Haag
I think that the 2002 model is the same as the 2000 model.
If so there's no "brake module" per se.
Did you test the "light failure sensor" as described in the image above?