How to Activate Trailer 12V Power Feed on Factory 7-Way in 2016 Silverado

Question

Question:

I have a 2016 Chevy Silverado that came with a factory 7 Way plug. I can not get power to my camper. In my 2014 I had to hook up a wire under the hood but for the life of me I can not find that in the 2016. Do you know where I might find the cord or something else to give my camper power while hooded up?

asked by: Shelley

0

Expert Reply:

Some trucks do need an under-the-hood connection of wiring to activate the 12V trailer power feed and the trailer brake controller power input feed. This process is outlined and illustrated in the linked article, in the section titled "Finalizing Connections for the Brake Controller".

The ring terminal for the 12-volt power lead for the 7-way trailer connector is located to the left of the power distribution box. It is taped to a wire harness under the power brake booster. Cut the tape to release it from the harness. Then run the wire to the front of the power distribution box and hook the ring on the right post (M8 stud).

expert reply by: Adam R

0

Tony

5/4/2020

Does the factory trailer plug on a 2017 silverado come with a 12volt wire?

Reply

Chris R.

5/7/2020

Yes, the 12V circuit on your Silverado's factory 7-Way should be active.

Reply

Lowell M.

3/14/2020

It was the fuse. I had an electrical problem with my trailer last summer and never checked the fuse. Thanks! you saved me a trip to the Stealer.

Reply

Chris R.

3/16/2020

Great to hear! Feel free to reach out if anything else comes up.

Reply

Lowell

3/13/2020

Im trying to get 12 volts to the 7 pin connector on my 2017 GMC Sierra 3500. I dont see any wires taped near the brake controller. Did they change something on the 2017s?

Reply

Chris R.

3/13/2020

I think you might just be dealing with a blown fuse on your 2017 Sierra. The trailer 12V charge fuse is located in the # 2 position inside the fuse box under the hood. You can use the diagram on the lid to find this particular location. Replacing this fuse should hopefully resolve the issue but let me know if not.

Reply

Sean M.

5/14/2024

Did you find out the issue? I have a 2017 Sierra 3500 as well and dont have a fuse in the #2 spot. there is not even terminals in the spot

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Answer 1

To keep the trailer battery charged you will need to run a 10-gauge power wire like the part #10-1-1, from the 12-volt power pin (#4 terminal at 11:00 position) on your trailers 7-way connector, to the positive terminal on the trailer battery. Now…

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Answer 2

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors…

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Answer 3

To get power to the pin in the 1:00 position of the #PK12703 7-way trailer connector, you'd run a length of 10 gauge wire #10-1-1 which is sold by the foot from the terminal for the 1:00 pin on the 7-way to the positive battery terminal, via…

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Answer 4

For your 2020 GMC Sierra 1500 Denali I recommend the Air Lift LoadLifter 5000 Air Helper Springs #AL57388. These air springs provide up to 5,000 pounds of load-leveling capacity to help distribute the weight of your load across all four wheels and…

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Answer 5

The Dealership is correct that the 2021 GMC Sierra is not going to send power back to the 7-way unless it senses a load. Since your trailer wiring is chewed up, the 7-way is most likely not sensing a load. The fix for this would be to use an older…

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Answer 6

Since you are not getting the 12V power when your truck is running, you most likely don't have a fuse issue as you stated their isn't a specified fuse or relay in the owners manual. The issue is that your truck is computerized even at…

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Answer 7

We do have a solution for your needed parts however, I inquired about individual parts purchase for the TorkLift Custom Frame-Mounted Camper Tie-Downs #TL54FR & #TLC2224 and these are only sold in kit form. So while we can supply you what…

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Answer 8

On GM vehicles of that vintage, the 12-V pin should be hot regardless of whether the ignition is on or not. If it isn't showing voltage even with the ignition on, you're almost certainly on the right track thinking it's a…

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Answer 9

I contacted the manufacturer regarding the installation of the Replacement Single Zone Thermostat for Dometic RV Air Conditioners #DMC79FR. They were able to provide me with a wiring diagram which I have included here for you.

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Answer 10

Realistically it is best to stick with a Dometic replacement thermostat for your Dometic setup. The #DMC79FR is the correct replacement for your 3316410.012. It may be possible to use a universal thermostat like the #CAM09221 you looked at but this…

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Answer 11

If the 12-volt pin on your trailer connector isn't working, you've got a missing or blown fuse or the wiring connection at the fuse box under the hood wasn't finalized. You're looking for a 40 amp fuse, located in…

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Answer 12

I can certainly help you with that. Since the Curt T-Connector Vehicle Wiring Harness, part #C55384 is a 4-way connector the four functions will be Yellow for the left turn and brake, Green is for right turn and brake, Brown is for running lights,…

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How to Activate Trailer 12V Power Feed on Factory 7-Way in 2016 Silverado

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