Question about 2006 GMC Sierra

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No power to trailer running lights

I have a boat trailer hooked to a 2006 gmc sierra with no power; suspect a bad fuse. have looked on the side pannel fuse block and all look ok, is there a specific fuse for the running lights?

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  • 2 more comments 
  • v6turbo Jun 29, 2008

    same problem, was you able to fix this? mines a 2004 GMC 1500

  • Anonymous Apr 10, 2009

    I have a 3500 2008 and I have no power on the running lights (green) at the trailer receptacle on the truck.

    I suspected the camper, but it was the NEW TRUCK! The weekend could be ruined and I am choked at GMC.

  • Anonymous Mar 12, 2014

    2009 gmc sierra trailer tail lights dont work

  • Anonymous Mar 22, 2014

    2006 gmc no power to trailer brake



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This is a known issue and to my knowledge there was even a recall order to correct this fault. It would seem the the wiring harness itself is the reason. You may want to reference these pages here and/or here.

Should you however prefer to perform a DIY, then you would need a DVM to check for voltages. This page shows the possible wiring scheme used by most manufacturers for trailer configuration.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jun 10, 2008


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