First of all, 'resetting the computer' won't have any effect, as your PCM has nothing to do with traction and ABS on your year.
I'm assuming you're talking about the 93 SSEi?
If the ABS works, and the TC doesn't, it can't be the WSS. It could be the EBCM, but VERY unlikely.
Your most likely culprit, unfortunately is the PMV assembly with your symptoms. That part is about $750 from the dealer. You should really get it checked by the dealer (they have to use a special serial reader interface direct to the EBCM to get traction/ABS codes) before jumping on this, but from my experience with this system, that'* your likely culprit.
Try reseating the large connector at the PMV (under your airbox), but that probably won't do it.
Don't sweat it. My traction has been out for a year, and I don't miss it at all. Not even in our winters. I just air down the tires a couple pounds, and ease off the line. Get your tires siped. It'll be more useful than TC anyway.