(not my picture)

So the buttons on the right side of the screen, front/rear defroster, A/C, passenger climate control, and air re-circulation, do not work on my 2006 TL. When you press the buttons, there is no light or indication that they are working, and when doing the B-CAN diagnostic, it shows no errors. The buttons on the left side work perfectly. I was wondering if anyone knows what could be the problem?

 

Really don't have an answer as to the exact problem, not easy, but I would first remove the housing to check if power is going to the passenger side module and go from there.