No switch to install yet here in Dallas on Chris_SVT's car. However, can one of you that do have the wiring check to see if you have a light bulb in place? Also, I'm curious as to what other hardware is needed to make the T/C kick in, if anything.
And, those people that do have the wiring, are you sure TC isn't kicking in without you knowing it? Peeling out on wet pavement would prove something.
Worst case scenario, you would need the programming in the PCM to get it to work. Or is there another computer for ABS/TC. I dunno, I have a silly GL without any of that fun stuff!! :p