I believe it's on the trans...the best way to do it, is to just DO IT!
Crawl under and look, see where the wires connect to the trans & give the plug ins a little wiggle to make sure everything is making contact.
Trace the wiring harness from the trans, back over the exhaust & look for scorched or melted wires.
You may be surprised at how much you can learn by just getting "hands on & dirty" with your VX...![]()