This was tested before removal and is fully functional. The only thing I was unable to test was the bulbs so the bulbs may need to be replaced that I am not sure of. If they do need to be replaced they are very simple they are all located on the back and they just thread in and thread out like a normal light bulb.
Man I had my car broken into 3 weeks ago fortunately they didn’t take anything but they left me with no ac/ heater module but i bought this for my car and you know what I love it more than ever