Where Does Red Wire of Trailer Wiring Kit # 119178KIT Wire to on Vehicle

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Question:

Hello, I bought the upgraded tail light converter trailer harness and my question is what do I do with the red wire? P/N 119178. Thanks

asked by: William B

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Expert Reply:

When installing the trailer wiring harness part # 119178KIT that you have the red wire gets ran to the stoplight circuit. If your vehicle has taillights that only come on with the brakes (and not with the blinkers), that is the circuit this should run to. Another place you can find this circuit is the third brake light of the vehicle.

expert reply by: Jameson C

0

Answer 1

The black wire of the Hopkins 7-Way Molded Trailer Wire Connector #HM20048 carries the 12 volt accessory circuit. This is the circuit that will typically power interior lights or charge a trailer's battery. I attached a help article that covers…

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Answer 2

The first thing to do is figure out how your lights get their power in the first place. Normally with your kind of setup the lights are either powered by the 12V pin on the 6-Way or 7-Way connection - this is the center pin for a 6-Way or the pin in…

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Answer 3

Typically, the black wire is 12-volt power, and the red wire is left turn/brake lights. But you cannot always go by color. If the wiring in question is on the trailer side, then there are two ways to determine which color wire does what function. You…

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Answer 4

The red wire is the turn signal wire and will be run to the green wire of your harness if its the right turn signal side, and the black wire will run to the brown wire of your harness. The yellow wire from your harness will run to the left turn…

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Answer 5

You are going to need to start testing your wiring with a Test Light #PTW2993 to determine where power is lost. I recommend starting by checking at the fuse you found. This will help you to determine which direction you need to mover on the wiring to…

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Answer 6

Between those two color choices the black one would most likely be the ground wire. However, if you hook it up with the black as the ground and it does not work I would recommend trying the red wire. Also, you should trace both of these wires back on…

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Answer 7

We have a online diagram that will help you understand how the break away system is wired into your trailer. It is actually a simple installation. The system splices into the existing trailer wiring. The break away box will have 3 wires coming out of…

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Answer 8

I recommend a 12 volt car battery rather than a breakaway battery because you may end up needing the larger battery down the road. What you will do is attach a battery box (see link for options) to the trailer frame. From the trailer side 7-Way…

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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

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 11

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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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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Where Does Red Wire of Trailer Wiring Kit # 119178KIT Wire to on Vehicle

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