They have changed those harnesses and check engine light still comes on. Both Cummins and Freightliner think it's the ecm might be causing a false read. So the plan is to change it out but the Level 2 person? Freightliner has been talking to needs to kick it up to Level 3 for permission?? So here I sit and wait for Cummins. Freightliner has told me he's going to get pro active so maybe I'll get back in the road soon. I was suppose to leave for Florida tomorrow.
Quote:
Originally Posted by simidrm
The after treatment harness is in sections there is one the covers the dpf filter one covers the def doses and they plug into a main harness inside the right inside of the frame rail and run to left side to the def tank and pump then off to the after treatment control module (acm) could be shorted anywhere in between those points easy way to track down the short is follow the harness and look for any green corrosion on the harness loom especially when it rubs against anything or is kinked or has sharp bends
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