Check Engine J1939 fault
Hello
I have a 2008 Cummins engine and allison 6 speed,The check engine light comes on and says no j1939 data.My gauges go from normal to zero and back to normal,I lose my cruise,trans keypad,and turbo.After startng the engine its normal for an hour and starts doing the same thing again,it still runs fine so is somthing heating up such as the ecm,or loose wire.
Greg
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