After ordering a Spark Module, I decided to do some trial and error problem solving and I decided to dismantle the stovetop and try some things. I focused in on the Igniters and their wires. With the stovetop cover off I assembled all the burners and made sure all wires in the Igniters were pushed in. Everything worked. I then put the stovetop back on and only one burner worked. Hmmm. I took the stovetop off again, reassembled, and all burners worked. Hmmm. Must be something with alignment and the spacing the stovetop creates. I put back the stovetop, made sure all Igniter cables were seated and cinched down all burner screws to ensure a tight aligned fit. Ta-da! All burners worked. Now I have a spare Switch Harness and Spark Igniter for when they really go out.