Originally Posted by ******
My guess is that the pots lost mechanical contact to the pedals.
I think the likely-hood of both going like that would be very rare.
If they worked a while ago and after a period of time passing now they don't. I think it sounds not like a potentiometer problem, more like a connectivity problem.
1st try usb port with another devise.
2nd check power to the wheel, those AC adapters do stop working sometimes.
3rd you can check the signal from the pots using an amp/volt meter. unplug pedals from wheel and check from the plug-end.
2 pots die at the same time? Never herd of it myself.