Recent content by mhowald
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no ecm/tcm communication
I went to the link you provided and searched for the 2006 medium duty diagrams. It looks like the header says 2006 but provides diagrams for a 2005?? -
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no ecm/tcm communication
My dtc code says that the ecm has lost communication with the tcm. Does anyone know if the 2006 c5500 medium duty with LLY duramax uses the canbus for ecm/tcm or class 2 wiring? -
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no ecm/tcm communication
I understand that the details are missing. I will see if I can get the codes from the repair shop. -
M
no ecm/tcm communication
I have a 2006 Chevrolet C5500 LLY/ Allison , motorhome application, that is in derate mode due to communication issues between ecm and tcm. It has been in the hands of a shop for a bit over 2 years and no resolution. The shop has replaced the ecm and tcm with known working units and issue...