Wiring Diagram for the Curt Universal Brake Controller Harness

Question

Question:

Do you have any advice on 2023 Jeep Grand Cherokee wiring diagram for installing C51515 adaptor for a C51110 brake controller. I will need to direct wire, as there is no brake controller connector.

asked by: Jeffery C

0

Expert Reply:

In order to install the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515 for the Curt Venturer Trailer Brake Controller on your 2023 Jeep Grand Cherokee you're going to need to first locate a bundle of 4-5 wires that should be taped up underneath your dash to the left of your steering column held together with a tag.

Once located, you'll just need to connect the wires from the brake controller adapter to your factory wiring. Those connections are brake blue wire to your trailer connector, black wire to your positive battery post, red wire to your stoplight switch, and the white wire to your ground.

I have attached a wiring diagram showing these connections for you to check out as well.

expert reply by: Bryce D

0

Wiring Diagram
(click to enlarge)

Answer 1

First I suggest making sure you are testing the brake circuit pin on your Sierra's 7-way trailer socket. If you refer to the linked photo of a trailer connector you will note the brake controller's output is carried on the pin at the 5:00…

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Answer 2

See the wiring diagram below from the Curt Echo #C27JR installation manual. The blue wire is the brake output, the black wire is the 12V power, the red wire is the stoplight switch, and the white wire is the ground. Depending on the vehicle there may…

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Answer 3

Sounds like you are using the left turn/stop circuit from your 7-way for the brake switch wire when you installed the Curt Triflex Brake Controller part #C24VV. You would want to go back and find the circuit from the brake pedal switch that only see…

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Answer 4

In order to use the Universal Wiring Adapter for Curt Trailer Brake Controllers #C51515 with your Curt Venturer #C74VV brake controller, you will need additional parts from your Volkswagen dealer. Please see the attached help article on installing a…

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Answer 5

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 6

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 7

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 8

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 9

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 10

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 11

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 necessary.…

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Answer 12

Sure thing, I will go ahead and list out what you need for your 2023 Kia Sportage to add a 7-way for a brake controller so you can tow with the Curt Trailer Hitch Receiver #C94WR: - T-Connector Vehicle Wiring Harness with 4-Way Flat Trailer Connector…

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Wiring Diagram for the Curt Universal Brake Controller Harness

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