With my issue, Im assuming its the module's driver. Since the module is supposed to be able to diagnose a short by flashing the LED, I am going to assume the module is the issue. Both the passenger and driver side remain lit BUT only the passenger side works.

 

Here's the Heated Seat Module section. It's 2 pages.

Click here

Obviously I live in GA and I love the heated seats in my truck and in my car. Sure they're not required but they are nice to have!