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Fjmorales16
New Member

1 Posts
Posted - 04/12/2018 :  04:34:44 AM  Show Profile  Visit Fjmorales16's Homepage  Reply with Quote
2012 maxxforce 7,no communication between ecm and pcm, any ideas where I should start. thanks

RonF
Top Member

867 Posts
Posted - 04/12/2018 :  09:54:48 AM  Show Profile  Reply with Quote
J1939 or J1708 circuit. That is your twisted pair yellow and green wires. It is the communications circuit between all the control modules. Check all connections and pull on the wires at the connector.
US Army retired CMBT
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