Harley Diagnostic

Question Error codes, po577- cruise high input? I need some Harley diagnostic info please. Also it has code # p0031, I cannot find any reference, can you help a brother out?

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Answer If you are not having a problem with your cruise control, just clear that code #P0577. It can be caused by moisture. Code P0031 is O2 sensor.

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5 Responses to “Harley Diagnostic”
  1. Dale Gibson
    Dale Gibson

    I have a P2102 code and a PO577 code on my 09 ultra. I got these two showing up after a long road trip and the last 50 miles was rougher highway. Are these related to jarring of the bike and I read that moisture can cause the PO577. I’ll clear it and see if it returns. The P2102 might be a bad throttle issue? Wiring and corrosion I suppose??