On my 2001 LX470, the tail light converter is behind the rear drivers side kick panel. NOT on the passenger side, like the 80 series.
LX450Landcruiser and I found out the hard way today. Thinking it was in the same spot as the 80, and spent a good amount of time digging around the rear ac box, only to find nothing.
I changed the converter out with a isolated circuit converter, because of all the TSB about the converter failure.
Also, my box was red instead of black like the 80 series.
Just thought I would post this up, so no one else makes a bonehead move like we did today.
Cheers!