i have a 2001 Monaco motorhome Cummins engine dash warning light an i cant communicate with ecm i have checked wire schematic 03 wire at dash plugm16 is the warning light just shows it as engine warning checked powers and grounds at dlc any ideas on diag for no communication
01 DYNASTY HELP
in Engine, Transmission, Engine Cooling, & Hydraulics
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i have a 2001 Monaco motorhome Cummins engine dash warning light an i cant communicate with ecm i have checked wire schematic 03 wire at dash plugm16 is the warning light just shows it as engine warning checked powers and grounds at dlc any ideas on diag for no communication