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according to a previous thread, someone replaced their speedo/tach and it fixed the problem. if thats the case it sounds like a factory defect and the moco should fix it.
I think what your seeing is a gauge malfunction. It is not an error code (Diagnostic Trouble Code - DTC). DTCs are in the format of a single letter (or SP in the case of the speedometer) followed by 4 digits.
I'd bet if you retrieve the codes you'll probably find a SPxxxx in there.
It's the Electrical Diagnostic Manual that has all the DTCs in it. When your chasing electrical issues that's the manual you need.
With all the preaching on this forum about the importance of having a Service Manual, I'm surprised the Electrical Diagnostic Manual is rarely mentioned.
I've bought two new Harley's in my lifetime and for both of them the Service Manual, the Electrical Diagnostic Manual, and the Parts Catalog were negotiated into the deal. After you make the best deal you can and your ready to sign, simply say "oh yeah, one more thing - I need those three manuals". There not going to lose your deal over those. Works everytime. Even on the new cars I've purchased.
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