2007 Equinox drivers seat will not heat...light goes off after a minute.

I finally got out my ohm meter and the circuit diagram and checked out all the wires. Turns out the problem was an open circuit in the drivers side seat heating pad. The connectors are fairly accessible under the seats. The circuit is rather involved since the control module is under the passenger seat and the inputs come from the switches on the dash through the climate control module!! What a complicated execution for heated seats!
But I was able to find some new replacement seats on Craigslist and picked one up for $100. It was pretty easy to replace with just the 2 bolts at the back, the wiring harness underneath and the shoulder belt clip. Now everything is working and I sold the old seat for $60. A ne $40 repair and 3 hours of diagnosis and swap work.