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05 GMC trailer power

Discussion in 'Chevy Trucks' started by 2005DMAX, Feb 13, 2007.

  1. 2005DMAX

    2005DMAX Junior Member
    Messages: 20

    I have a 2005 GMC K2500HD. I don't have any accessory power at the 7-way trailer plug on the back of the truck. Does anyone know what fuse feeds this circuit.
  2. roblandscape

    roblandscape Senior Member
    from Phila
    Messages: 187

    I know under that hood in the fuse box there are a few fuses that are for the trailer, they start with TRL on the fuse diagram under the top for the fuse box.
  3. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Also, make sure their are fuses installed in the "stud 1" and "stud 2" locations in the under hood panel. And make sure their not blown.
  4. Its a 40AMP fuse at top left of underhood fuse panel. Often, GM will supply a fuse wrapped up in the trailer brake harness that comes with tow package. Take a look in glove box, center console or maybe its already wired up near drivers left foot behind plasic cover secured by one plastic screw.
  5. 2005DMAX

    2005DMAX Junior Member
    Messages: 20

    Thanks for the help. I found it. It was the top left fuse (stud #1). It looked like it had a fuse in it but it was a blank with tape on it.