I need help here. I was trying to place a grounding wire under the nut and bolt at the front of the engine bay fuse box and when I loosened it, it sparked and the power to the car completely went out. It wouldn't go into accessory mode or crank. Nothing. I went to try and screw it back down and when I hit the metal under the nut, everything came back on like nothing was ever wrong. I drove it around and tested everything and nothing was wrong. After cutting it off, I came back and put it in run mode and the Battery Discharge Warning came on the screen and while the car is in run mode now, the engine, battery, and oil light are all on, but go away when I crank the car up. When I later went to recreate this issue, the car completely died again when going from accessory mode to run mode. This time I went to the fuse box to take the cover back off and before I could, I heard a crackle, and everything came back on again with no problems. Can anybody tell me what is going on and if there is a way for me to fix it without having to go to my dealership to have them fix it?