GMC SIERRA CONTROL PANEL

Mechanic Checked Everything All Good But Scanner Tells Us That The Codes Are Reversed. This Is My Third Controller. What's Nexts?

There Was A Smell Of Electrical Burn The Heater Stopped Working The Lights Went Out On The Heater/ac Control, I Installed A New Heater/ac...

Everything Worked. Stopped For Lunch And When I Came Back No Fan, Can't Change Air Flow Direction Nor Temp. All Fuses Ok. Can't Afford A...