I had a 3rd gen 4runner that had a similar issue. It took me awhile to diagnose.
There is a black (or possibly brown) single wire that is part of the trailer wire harness at the rear of the truck. Mine was supposed to be connected on the passenger side behind the plastic trim panel in the...
I had some tires on my 3rd gen that were nearly 14 years old. The rubber will be very hard and the tires will not perform well in snowy/wet conditions. Hopefully, you can find a set under $1000
