Question about 2005 GMC Sierra

1 Answer

No power to trailer hookup

All of the fuses are good but I'm not getting any power to the trailer

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 129 Answers

Check your ground wire. If it's ok, take a test lead and check for power in the plug on your truck. If still no power trace the wires at the back of the truck to where the plug for your trailer light hooks into the truck lights make sure the conection is good and the plugs aren't corroided.

Posted on May 28, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Lost power to turn sig airbag light and heater control.I pluged trailer lightes in to my tow package

The trailer might have a bad ground. My camper does the same thing to my truck. Try directly connecting the trailer ground to the frame of your vehicle. This might solve the problem as it did for me.

Nov 16, 2012 | Cars & Trucks

1 Answer

I have a seven plug for my trailer on the back of my silverado. what do i need to do to hookup my elect brakes on my trailer to the truck

Do you already have a factory installed brake controller, or are you installing an aftermarket brake controller? Also, take time to check owners manual in fuse section for possible circuit already in fuse/power distribution box (under hood) and would require you to just insert recommended fuse.

Oct 30, 2011 | 2001 Chevrolet Silverado

1 Answer

I have no power to the tag lamp socket on my 2006 G6 Pontiac? Where is the fuse located for this socket or where is it tied into the wiring harness? I appears to go straight down behind the rear bumper!...

Common to blow that fuse if you have a trailer light hookup and it gets wet and/or shorts out on a trailer with bad wiring. It is in the fuse box under the hood. Box will have a rectangular black plastic cover marked FUSES. On the underside of the box is a diagram as to which fuse governs which wiring circut. Usually a 10 amp fuse for that one you blew.

Jun 11, 2011 | 2006 Pontiac G6

1 Answer

I have checked all fuses and they are good. The brake light on the cab works. All of the tail lamps are good. Every other function works. It has a trailer hookup also. All of the plugin connections have...

check for power at the actual bulb socket for brake applied and also check for ground . If not check for a boken or damaged wire check connection at trailer as well for P and G. may not be recieving input from brake light switch

Oct 20, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

Ford F-250 No turn signal or brake at the trailer

try They have a great website with lots of info. Check the connection under the truck. Test for voltage there. If still no voltage, use tester the check the fuses. There are usually different fuses for the trailer than for the truck.

Sep 22, 2009 | 2004 Ford F250

1 Answer

2002 Ford Econoline trailer hookup problem

please check the fuse and relays, you may have blown one when u hook up the trailer

Jul 31, 2009 | 2002 Ford Econoline Cutaway

1 Answer

No stop and turn lights for trailer hookup f150 1997

Check the fuses under the hood near the brake booster. The trailer fuse are usually in one of those fuse/relay boxes. Good luck.

Jul 01, 2009 | 1997 Ford F150 Regular Cab

1 Answer

No power to tail light on trailer- 2004 Dodge durango factory tow

If this is a factory light harness for the trailer hookup on your Caravan. Look under the hood for a fuse box. Many 2000+ vehicles have this with separate fuses just for the trailer lights.

Jun 10, 2009 | 2005 Dodge Caravan

1 Answer

03 chevrolet silverado brake lights will not work.

You have a bad ground re test the trailer connection's

Apr 20, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

I have power to my trailer recept but nothing after that

Sounds to me to be a groung issue. Have you tried to hook an external ground between the truck and trailer? If you got everything at the plug thats not the problem.

Apr 19, 2009 | 2003 Toyota 4Runner

Not finding what you are looking for?
2005 GMC Sierra Logo

174 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

76630 Answers


Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides