Driver side seat climate control not working?

Is my seat heated by the gentherm with blown air or are there wires in the cushions? No wiring diagrams show wires to cushion or seat back only to TED seat and TED cushion. Are both Ted’s in the same module under the seat. So how do I test if Ted is bad vs climate control module? Are both passenger and driver the same?

I swapped TEDs. Driver seat now works. The passenger side came on initially but now it doesn’t work. So I guess I have to order a new TED.
Thanks for the help.