Replaced battery and after I replaced battery my climate control screen, my power door locks and the blower fan will not operate, my backlight on the lcd works but no numbers, letters or anything like that come up, the power locks don't work by pressing the door switches or the lock button on key. The heater and and ac control board works because it lights up but just the blower does not kick on. I have checked all fuses and relays. What could be the issue?

 

Did you by any chance reverse the polarity of the terminals?

You can try a full reset, by disconnecting the battery for about 20 mins. When you reconnect the - terminal [I am assuming you are following safety and connecting the - terminal last] do so with single determined action. Do not let the terminal bounce and create extended sparks. The bounce in connection can create gremlins.

Salim