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code 4

  1. ABS Light Flashing

    GL1800 Tech Board
    I have an 2007 GL1800 HPNA, I have had a recurring flashing ABS light. Comes and goes. I retrieve the code several times, always Code 4. After clearing the code, sometimes it will start flashing after hitting 6 mph, sometimes I can go 100's of miles before it starts. I checked service manual...