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Electrical
Requirements
Electrical
Requirements
Location of the J-1939 Control Data Link on Cummins Engines
As a part of Cummins ECU Interface Harness, J-1939 3-pin Deutch connector will already be present. No additional con-
nections are needed to connect the engine ECM to the J-1939 backbone.
Note:
It may be necessary to extract the connector from behind a bracket located at the rear of the engine. Simply push
the connector out from behind the bracket.
Engine
ECM
Engine
