Medium and Heavy Trucks
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Hi my name is***** will be glad to try to help. Check all your fuses and relays and in your battery box for corrosion in the wiring for the ECM and IDM inline fuse harnesses. Check all grounds as well Sounds like your ESC is not communicating from wither a harness problem or loss of power and ground and finally a faulty controller possible. Will it pull any codes or not get beyond no data?
Click on this link for some schematics to help. Let me know