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Re: 3126 Cat int no start no communication with ECM
Posted to HD/Fleet Forum on 1/31/2012

why you load tested the wires did you have anyone shake them to see if the brightness of the bulb fluctuates?

you checked 2 constant powers, 2 constant grounds and 1 ignition hot at the ecm 70 pin connector correct?

when you have a no start does the "check... Login to read more.