Very nice and great writeup, as always!
Sorry but I was confused a bit on your comment above regarding wiring of the temp and speed sensors to the VSC (ABS) ECU:
"Here is a diagram of the back of the ABS unit. For 99+ 4runners it is located under the driver's dash. The Blue/Grey temp sensor wire is in the V18 plug, I'm pretty sure it was the slot number 17 on that plug.
Just remember that it is the only Blue/Grey wire on the entire ABS unit."
Then you commented "Blue/Grey speed sensor wire located" above the pic of what looks to me as the V18 plug.
So I was confused as to which wire is in V18, slot 17 - the temp sensor or speed sensor? I'm assuming its the speed sensor since its in the VSC ECU. If so, then where is the temp sensor wire located that you tapped into? I have an '02 SE as well and was hoping to use the pre-wired exterior ambient air temp sensor (black/blue and gray wires at exterior plug) but not sure where the other end of that wire is located under the dash?
Thanks