Just bought a 03 Trailblazer a few days ago, came with a few small problems..

One problem was the heat was not blowing so I check the blower motor with a 12v battery and it came right on, so I figure it was the blower module and replace it. It worked and as I started to clean up the wires I heard a pop sound unsure what it was check all fuses and found out it was the 40amp fuse under the hood. bought a new one and replaced it, now my climate control part lights up but not the digital screen part where it shows the graph with the person sitting.. this is the automatic control one..
I need help on what could be wrong Thanks