Hopefully it is as simple as a loose plug. Behind touch screen is a plug. That can be traced to the control unit. Mine, mounted in overhead of the generator bay, also just plug in. From there goes to the power source. Should be a easy to follow the wire to make sure all wires are secure. If it is, take a meter and check for power there. That would be a good start
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Scott n Cindy
2011 GMC 3500 4x4 DRW
2014 Voltage 3895 Epic3
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