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Ecm pcm power relay is what discount did I needed due to the code. But the location where they said it was its not there. Car shuts off while driving And turns itself right back on.

Vehicle: 08 honda accord v4

1 Answer

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P0685 Engine control module internal circuit malfucntion

Do this by step one of the relay that can contribute to this fault would be the PGM-FI main relay, Other than that the only fix for this is another ECM

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