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International Automotive Technicians Network
Re: 90 detroit 8v92
Posted to HD/Fleet Forum on 6/25/2015

Don, I probably have those old DDEC cards at home in the "library". I'll look tonight. Normally, when I see a long list of codes, I'm thinking ECM power and ground issues. The battery box and on forward is where I would start. This probably has battery discon... Login to read more.