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International Automotive Technicians Network
Re: P1378 and P0611
Posted to HD/Fleet Forum on 11/1/2013 1 Reply

I had a Motor manual that walked me through some checks. I found fuse F20 has voltage on both sides. I grounded ficm connector c pin 27 and checked pin 8 for voltage, I had none I removed the relay and turned the key on. I checked relay connectors 2 and 3 for ... Login to read more.

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