Fuse and Circuit Breaker Installation Help For Dexter Predator Brake Controller in 2008 GMC Sierra

Question

Question:

I am installing a predator DX2 brake controller in a 2008 GMC Sierra , which has a factory tow package. I have a two part question for this controller installation. !- Existing in my power distribution box is a 30A fuse for the controller power M6 stud and the predators install guide says a 25a self resetting circuit breaker is required. Do I leave the 30a fuse and install a 25a circuit breaker inline under the dash? is there a self resetting circuit breaker built in the factory setup? 2 - The predators install guide also requires a 20a inline fuse to be installed on the stoplight switch wire. Is this fuse already part of the factory setup or do I install it under dash? I watched your videos of break controller install and didnt see these fuses or circuit breakers mentioned. Please enlighten me.

asked by: Chris

1

Helpful Expert Reply:

When installing the Dexter Predator Brake Controller # 58-8 in your 2008 GMC Sierra you will want to follow the Dexter instructions and install the specified fuse and self-resetting circuit breaker as indicated.

The vehicle manufacturer installs fuses to protect the OEM electrical components in the vehicle so any aftermarket accessory that is added will need to be protected independently of the factory fuses and circuit breakers.

To correctly install the Dexter Predator you will leave the 30 amp fuse that is currently installed on your Sierra alone and install the required 25-amp self-resetting circuit breaker on the black power wire as close to the brake controller as possible. The black power wire is then connected to the positive (+) terminal of the battery.

You will also need to install the required 20-amp inline fuse on the stoplight switch wire. The red wire in the Predator kit with the 20 amp fuse connects to the cold (non-powered) side of your brake switch.

Not all brake controllers require additional fuses and/or circuit breakers; this requirement is brake controller dependent. We make our videos following the manufacturers installation instructions and only with the items that come in the kit.

I have attached a FAQ article covering a Draw-Tite 5220 brake controller installation on a 2008 GMC Sierra. Although it is a different controller the basic installation process is similar.

expert reply by: Lori W

1

Answer 1

You'd want to use the 20 amp circuit breaker like #PK54220PL unless your trailer has more than two brake axles. If that's the case you'd want to use the 30 amp breaker #38630.

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Answer 2

The red wire from your Dexter DX2 brake controller #58-8 needs to be wired to the cold side of the stop light switch, which on your 2013 Chevy Silverado corresponds to a light blue wire with a white stripe. This wire should ONLY be hot when the…

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Answer 3

I would recommend you install it below and to the right of the steering wheel, on the lower dash piece that will be nearest to your right knee. Check out the picture I attached to see this area. I attached installation instructions as well as an…

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Answer 4

The Tekonsha P-3, item #90195, is an excellent brake controller. Your brake controller wiring will be under the dash below the steering column a bit to the left. There is no connector so you will not need an adapter. You will connect the wires…

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Answer 5

For your 2007 Tahoe with the factory tow package, the Prodigy P3 brake controller part #90195 is simple to install. You only need to splice the four wires on the controller with those already present under the dash. No additional wiring or harnesses…

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Answer 6

The New Body Style now comes with the wires for the brake controller loose underneath the steering wheel off to the left, so there is no adapter necessary. All you need to complete your installation is the Tekonsha P-3 Trailer Brake Controller, item…

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Answer 7

In order to install the Tekonsha Prodigy P3 Trailer Brake Controller part #90195 on a 2001 Chevrolet Tahoe with factory tow package you'll need the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part #3025-P.

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Answer 8

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 11

You do have the option to utilize the air brakes on your 2023 Freightliner Cascadia to control electric trailer brakes using the Hayes Air Actuated Trailer Brake Controller, part #HA100400C. However, we mostly recommend just using an electric brake…

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Answer 12

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Fuse and Circuit Breaker Installation Help For Dexter Predator Brake Controller in 2008 GMC Sierra

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