Wiring Harness For Brake Controller on a 2008 Chevy Silverdao 3500

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Question:

My 08 Chevy 3500 pick up keeps throwing a service trailer brakes code I replaced all the parts and it still does it intermittently. Im looking for a brake controller that I can wire in its place I have been told by the dealer that this is not available to me and I have to replace the whole system.. I was thinking of using a prodigy brake controller like I have in my other pick ups but I dont see a wiring harness plug-in on the 08 to plug into. any light on this subject would be great or step-by-step instructions as well also part numbers so I can order stuff through you guys thank you.

asked by: Josh B

0

Expert Reply:

I have a wiring harness for your 2008 Chevrolet Silverado 3500 that is made by the same company that came out with the Prodigy P3 # 90195. Tekonsha has the Pigtail Wiring Harness # 7894 that you install under the driver's side of your dash. I have attached a help article that goes into detail on the wiring you will need to do.

When connecting your brake controller, these are the wire combinations that you will need to link together:

Red/Black to Black Battery Power
White to White Ground
Light Blue/White to Red Brake Light Signal
Drk Blue N/A Brake Control Output to Trailer
Orange N/A Center High Mount Stop Lamp (CHMSL)

You will have to use an appropriate length of 10 gauge wire, # 10-1-1, to run from the blue wire on your brake controller to the blue wire at the back of the 7-way trailer connector at the rear of your truck. This will bypass the factory brake controller.

To install a trailer wiring harness at the back of your Chevy, I recommend using the Pollak 7-Pole # PK11898. This also includes a mounting bracket for easy installation under your bumper.

I have included some demonstration videos for each of the parts that I've listed and I attached some helpful links for you as well.

expert reply by: Jon G

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Answer 1

You would have to purchase the B&W Tow & Stow 2-Ball Mount - 2" Hitch - 5" Drop, 5-1/2" Rise - 10K - Black, #BWTS10037B as a complete hitch assembly to upgrade to the 2 inch and 2-5/16 inch ball. The…

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Answer 2

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 3

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more…

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Answer 4

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 5

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 6

By all accounts the Curt Spectrum Trailer Brake Controller #C51170 works well and is easy to use and install on most vehicles. It is a brand new item so not a lot of feedback has come in on it. I did learn a few things though after speaking with our…

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Answer 7

Hey Antoine, so the two kits you mentioned are actually really similar and honestly I would go with the part #ETBC7 if I were you. The #ETBC7L is basically the same thing minus a couple wires and breakers so you may as well get the kit that has…

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Answer 8

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 9

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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Answer 10

From what I can find on the 2022 Nissan Frontier, the plug for the brake controller that will let you use a harness like the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers #3050-P is located just above the OBD connector, taped tight…

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Answer 11

Either way is correct. It depends on if you want to keep the semi-style 7-Way (if you need to tow that type of trailer) or if you will never be towing a semi-trailer. If you need to keep the 7-Way semi active on the truck, then you would need to make…

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Answer 12

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…

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Wiring Harness For Brake Controller on a 2008 Chevy Silverdao 3500

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