How to Complete the 12 Volt Accessory Circuit on a 2015 Chevy Silverado 1500

Question

Question:

How do we wire 12 volt live to trailer 7 plug in a 2015 silvetado hd. I do not see any posts as in older model of silverados. Thank you

asked by: Gaetan L

1

Helpful Expert Reply:

On some 2015 Chevy Silverados the 12 volt circuit for the 7-way isn't completed under the hood of the truck. On the positive post side of your truck's battery there will be a wire that is taped to it that would need to be connected to the positive post of the battery and the circuit will be completed.

expert reply by: Jameson C

1

Answer 1

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…

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Answer 2

You will want to look up under your 2015 Chevy Silverado 2500HD behind the bumper or above the spare tire for a wiring harness. If it is present and has a round connector at the end and looks like #PK11998 then you would be able to install 7-Way…

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Answer 3

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 blown or…

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Answer 4

For your 2015 Chevy Silverado 1500 you will actually need to use brake controller wiring harness #3016. If you also need a brake controller I recommend the Tekonsha P3, #90195. This versatile controller has easy to read diagnostics, presets you can…

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Answer 5

There are a few troubleshooting steps to help you figure out why you have no power. I would start by making sure that there is not any corrosion or debris blocking your connection points. If they are clean or still no power after cleaning, I would…

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Answer 6

Only a 7-way trailer connector will have a 12-volt power wire ran to the connector. A 4-way trailer connector will not have a constant 12-volt power wire. As long as the 12-volt power wire running to the 7-way trailer connector is rated for the…

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Answer 7

I have attached a photo for you below which shows how both a vehicle side and trailer side trailer connector is typically wired. I say typically because this is not always exact and so long as the trailer and vehicle side both match it will not…

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Answer 8

The wiring harness #3016 is what you will need to install a Draw-Tite or Tekonsha electric brake controller, like the Prodigy P3 #90195 in your 2015 Chevrolet Silverado 1500.

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Answer 9

It sounds like you're not getting power at the pin in the 1:00 position in the trailer connector. If you've installed new fuses and attached the wires at the distribution box under the hood, at this point I'd just abandon that feed and…

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Answer 10

Since Demco uses 3,500 drum brake assemblies part #DMSB24429M and #DMSB24428M what you'd need is similar 3,500 electric brake assemblies like the etrailer part #AKEBRK-35L-SA for the left hand side and #AKEBRK-35R-SA for the right hand side. To…

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Answer 11

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Answer 12

I would love to help you upgrade the suspension on your Twilight 2800 travel trailer. The MORryde Rubber Equalizers for Tandem Axle Trailers #MR87ZR that you referenced are a great solution but we do need to double check a few things. First is that…

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How to Complete the 12 Volt Accessory Circuit on a 2015 Chevy Silverado 1500

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