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Re: 04 int bus speedo issues
Posted to HD/Fleet Forum on 12/30/2014

It is fixed, found a damaged wire above trany. Basically I started checking wiring underneath and the speedo started to work. I then found pins 39 and 40 on ecm and hooked up my vantage scope and had a pattern which changed with speed. Then I got under with so... Login to read more.