Brake Controller Installed in 2021 Chevy Silverado Z71 Trail Boss Not Powering Up

Question

Question:

Thanks Mike, checked the diagram on fuse panel cover. Position 84 is for the trailer brakes. I will get a circuit tester and try that. I hope its the brake controller thats bad. Thanks again for your assistance. Youve been a great help.

asked by: John G

0

Expert Reply:

Assuming that you've found the correct connector for the # 3064-P brake control harness which is located under the dash to the left of the steering column, I'd wager than you have a fuse missing in the power distribution box in the engine compartment on the passenger side. Check fuse location # 84, and make sure that there's a fuse installed there. If the fuse is missing or blown, you can obtain a replacement from your local auto parts store.

expert reply by: Mike L

0

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John G.

11/5/2021

See attached photo. Checked position 84. Fuse is there and appears to not be blown.

Mike L.

11/5/2021

As a next step, I'd leave the # 3064-P plugged into the vehicle but unplug it from the brake controller. Use a circuit tester like part # PTW2993 to test the pin in the plug that's fed by the black wire. If that pin is putting out voltage, then the controller is faulty and should be replaced. If it isn't putting out voltage, I'd check your paper copy of the owner's manual, and confirm that the 'trailer brake' fuse location is in # 84 (sometimes the online owner's manual gets superseded). At this point, if you confirm that 84 is the correct fuse, then there's a problem in the vehicle wiring between the fuse box and the connector under the dash. You can take the vehicle to the dealer and have that fixed, or you can simply bypass that circuit. If you wish to bypass the factory power feed to the brake controller, you'll need to sever the black wire in the # 3064-P harness several inches away from the rear of the brake controller, and splice in a length of 10 ga wire long enough to pass through the firewall to the positive battery terminal. We sell the wire by the foot as part # 10-1-1. You'll run that wire through a 30 amp circuit breaker like # PK54530. You'll also need two # 44-5310A and one # 44-5356A ring terminal. You'll want to mount the breaker as close as possible to the battery.

John G.

11/5/2021

Thanks Mike, checked the diagram on fuse panel cover. Position 84 is for the trailer brakes. I will get a circuit tester and try that. I hope its the brake controller thats bad. Thanks again for your assistance. Youve been a great help.

Mike L.

11/5/2021

I'm glad we could help. You could also take the fuse to an auto parts store and have them test it. With some of the J-Case fuses, it can be difficult to tell visually if they're blown.

Answer 1

Hey, jay! If you want the most OEM look as possible with a brake controller I would go with the Redarc part #RED65CR. The only thing that will be visible once installed is the control knob and that can be mounted anywhere on your dash. It also comes…

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Answer 2

The best trailer brake controller for a 2021 GMC Sierra 1500 is the Redarc Tow-Pro Elite Brake Controller part #RED63RR. This is a hidden controller so you don't have to worry about banging your knee on the controller when you get in/out like you…

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Answer 3

If you take a look at the diagram I've provided for the Replacement Power Switch for RAM Electric Trailer Jack with Footplate #EJ-3520-PSW which goes to the Electric Jack w/ Footplate #EJ-3520-WBX, you'll be able to see how both of the…

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Answer 4

I have great news for you, I can help you bypass your factory brake controller and install your aftermarket brake controller. In full size trucks, like your Chevy Silverado 2500 HD, you will have to make a few connections to allow you to bypass your…

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Answer 5

It sounds like you have the factory tow package on your 2021 Chevy Silverado 1500. The #RED63RR is a good start since it comes with the Tekonsha Adapter #331-TPH-017 for the Tow-Pro Elite. The only other thing you will need is the Tekonsha #3064-P.…

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Answer 6

It sounds like you mean the 2023 Chevy Silverado 1500 you're looking at doesn't come with a brake controller. You can add a brake controller to any vehicle as long as it has a 7-way installed. What I recommend for this truck is the Redarc…

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Answer 7

Hey Matthew, thanks for reaching out! We do actually carry a plug-in adapter for installing the Tekonsha Prodigy P3 #90195 on your 2020 Silverado 1500. What you're looking for is the Wiring Adapter #3064-P. Is the Prodigy P3 brand new, or are you…

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Answer 8

I recommend the Redarc Tow-Pro Elite Brake Controller for Tekonsha Harness item #RED63RR. This brake controller and harness will install inside your Silverado without cutting or splicing wires using the Tekonsha Plug-In Wiring Adapter item #3064-P.…

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Answer 9

Yes we have exactly what you need. All you will need is part #3064-P. This will plug in to the back of the P3 controller #90195, and the other end will plug in to the plug you found under the dash. It really is that easy. If all you have is the…

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Answer 10

There isn't anything like an autonomous controller that would step up if the factory controller fails. I'd simply bypass the existing factory brake controller. The GM ITBC, although it works better now than the earlier models has been…

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Answer 11

Hi Frank, While we can get you a brake controller for your 2020 Chevy Colorado, there isn't a plug-in option and harness because the truck doesn't have a plug under the dash. That said, the wires are already run to the cab, so it isn't…

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Answer 12

Hi there Ron; the correct Tekonsha brake controller wiring harness for your 2024 Chevy Silverado 1500 is the following: - Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers #3064-P

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Brake Controller Installed in 2021 Chevy Silverado Z71 Trail Boss Not Powering Up

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