5.9K views · 82 reactions | ⚡Working on a Freightliner truck with a 12.7 engine? The problem: Incorrectly connected communication wires.  We used jumper wires to test and verified cables were connected incorrectly. How to fix it? Use the diagram . Follow the correct pinout for “Data Link” which in this case is C1 and C2, check the harness configuration and connect properly. ✅Follow me for more tips!  #TruckWiring #DieselMechanic #DieselTech | Oscar Truck ECM | Facebook
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5.9K views · 82 reactions | ⚡Working on a Freightliner truck with a 12.7 …
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