Recent content by cboshdave

  1. C

    LED Park/Running Lights on trailer not working - Screen Errors

    As I mentioned, my truck worked on another trailer and his truck worked with my trailer. So, I think it's specifically a problem between my truck and my trailer. I have ruled out everything else (theoretically).
  2. C

    LED Park/Running Lights on trailer not working - Screen Errors

    Thanks! This might do the trick and avoid all the truck to trailer "testing".
  3. C

    LED Park/Running Lights on trailer not working - Screen Errors

    Just got a 2023 Yukon 3.0L Duramax. I have pulled my enclosed trailer with a 7 pin trailer connector several times and the lights have been fine. The last time I pulled, I got dash errors saying no trailer connected as well as parking light test error. All other lights were fine (brake, R...
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