etc do not work neither light up... also my ac fan is not working. I tried the self diagnosis and clicked on navi system on the top left and the A/C and Meter blocks are red. What does the meter block mean? Is it linked to the ac controls? Or to the fan? Someone please help me understand.

 

Is the engine running when you are in the diagnostics? I have found results vary between ignition on and engine actually running.
There is a separate and individual diagnostic for the HVAC system.