I have a 2009 Freightliner Cascadia that shows No Datalink J1939. Once we hook up the diagnostic computer the code is gone & everything works fine. As soon as the computer is disconnected the NO Datlink error comes back & ELD stops taking readings from the truck & the A/C turns off. Any help would be greatly appreciated
HELP 2009 Freightliner Cascadia
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by saldijm509, Jun 3, 2022.
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