RepairPal is your advocate for car care advice and guidance

Q: tralier coupler on 2002 GMC Sierra 1500

getting no power to my factory trailer coupler to make my boat trailer lights there a fuse somewhere?
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Which lights are not working - all of them? There is not one fuse that would take out ALL of the trailer lights. If everything is dead there may be a problem where the trailer harness plugs into the junction block at the rear of the truck.
Didn't find what you were looking for?