What is the Purpose of the 12 Volt Accessory Circuit on Trailer 7-Way

Question

Question:

96 Chevy Silverado 2500 4x4. Where is the wire going to on the trailer plug that is coming from the 40 amp breaker at the top of the diagram? Thank you

asked by: Curtis

0

Expert Reply:

You are referring to the 12 volt accessory circuit on the 7-way in the picture. This is the circuit in the 1:00 position of the 7-way as you are looking into the socket from the front. For the install of a brake controller this circuit is not required but it is used for maintenance charging trailer batteries and powering utility lights as well.

expert reply by: Jameson C

0

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Answer 1

That will depend on the amount of brake axles your trailer has. . The 20 amp breaker like #9506P is for 1 and 2 axle brakes, and the 30 amp like part #38630 is for 3 and 4 axle brakes

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Answer 2

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 3

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 4

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 5

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 6

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 7

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 8

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 9

Hey, Stephen! We got just what you need. Since you don't have a tow package, I'm not sure if you have a hitch on your 2025 Ford Ranger so I'll include one just in case. Draw-Tite Max-Frame Trailer Hitch Receiver Part #DT35PR Curt…

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Answer 10

You're right, the mounting bracket is unique (in a good way) for the Curt TriFlex NEXT Trailer Brake Controller #C24VV. The bracket is smaller and all you do is put the included adhesive tape on the bracket and stick it wherever you like under…

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Answer 11

Actually, the P3 now has the upgraded axis accelerometer like the P2. The Tekonsha P3 Trailer Brake Controller #90195, will work with both electric over hydraulic brakes on the trailer as well as electric brakes. It has a menu option on the display…

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Answer 12

We can get you everything you need for towing with your 2017 Toyota Sienna XLE. By plastic shield, I believe you are referring to the appearance panel underneath the Sienna, and that will have to trimmed a bit in each of the hitches available for the…

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What is the Purpose of the 12 Volt Accessory Circuit on Trailer 7-Way

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