Case 580K dead instrument cluster

I have a more of a beginner mechanic question, I have a phase 3 580k thats new to me, and by new I mean I bought it, worked it for 2 days and almost every cylinder on the machine blew out under load and other issues that caused it to be in the shop for 4 months as of now. The entire instrument cluster was dead, and I asked the tech to look at it to find out what might be shorting it out (I absolutely hate running machines with dead gauges and not knowing what its doing, call it a pet peeve...

Case 580K dead instrument cluster

Case 580K dead instrument cluster