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International Automotive Technicians Network
Re: 2007 Focus Communication Error No Start
Posted to Technical Discussion Forum on 3/23/2023

This point you might need to wait until the problem shows up again, then jumper terminal 4 and 5 at the DLC and see if the symptoms disappear, would prove that it is either a ground issue or the PCM (wiring diagrams are your friends).

I would triple check yo... Login to read more.