Hello

I bought Maxidiag Elite MD802. Then, I have done upgraded the device from PC suite
I have Hyundai vehicle model "Accent RB" 2012. I used testing all function and suddenly I found "Air Conditioner" not working it is showing me in screen "Tester not communicating with control unit"
so, I choose different Accent models and manufacture Years, it is showing same message. also I try in OBD2 test, there is no showing Air Conditioner my car

please you have any solution for this an issues