Heated seats

[ana100]

I was checking that I have the fuses - yes, also there was a sticker below seat cushion, which said "Värme", which is Swedish meaning heating... So configured the heated seats.... All looked ok, just like other times writing to car new configurations, Now, somehow car got confused. 

First climate controls did not react at all, I tried to start car, did not start, then I turned the start know left (=stop engine) car started :-), now driver screen was empty, car running, could not switch off the car...  Almost panic, how do I shut off the engine, then I tried to restart "IHU", that helped and I could shut off engine, all worked again. Maybe the developers could take a look on the log what happened?

Now, test drive, seats not heating... Then manager to take the sticker off from seat, it said "Värme - NEJ". Meaning no heating... See attached picture

Could somebody post a picture how should it look like when there's heating and that controller is there?

Having the fuse on the fuse box does not mean it's actually wired from the fuse box to each seat!  My S60 2019 does not have "Advanced air cleaner, Airborn matter sensor" but the fuses are connected. 
As I said earlier; look under your seat,  your seats do not have the heated seat controllers.

That's how it is, no heating elements, no controller in my car. Still want to explore how to retrofit those. I'm new to Volvos, came from BMW world :-). Where could I find the schematics to investigate more? Anybody having access to schematic diagrams?