Solution for Installing Trailer Wiring on a Vehicle with Separate Turn Signals from Brake Lights

Question

Question:

I have a 1995 isuzu trooper. The previous own wired in a trailer brake control and a 7 way connector. None of the lights and or brake controller were wired in correctly, I rewired the brake controller and the 7 way connector so now I have trailer brake power signal, right turn, left turn, 12v, ground, tail lights and NO brake lights. I traced the brake light power signal wire but if I connect it to either left or right turn light and apply the brakes, then turn signals on the trooper light up with the brake lights. Im lost on where or how to connect the brake light wire, or am I missing a relay or something?

asked by: Joey

0

Expert Reply:

Sounds like your Trooper has separate turn signals from the brake lights and what you are trying to do is wire up a trailer connector that is designed for combined circuits. This is a fairly common problem and the solution is to wire in a signal converter like part # RM-732.

You will wire your separate turn signals to the input side of the box and then on the output side the signals will match what your trailer needs.

expert reply by: Jameson C

0

Answer 1

You will need a converter to combine the brake and turn signal circuits from the truck so that the light bar you have functions like normal. For a basic one you can use #HM48925. You can then cut off the 4-Way end of this harness after it is…

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Answer 2

If I understand you correct you have a trailer with separate turn signals and brake lights that aren't functioning properly because you 2013 Ford F-150's trailer wiring combines those signals on one circuit. If I'm wrong let me know. If…

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Answer 3

If your tow vehicle has a 3 wire system, this means the vehicle's turn, brake and tail light function are on separate wires. When installing the Vehicle Wiring Harness #C59496 referenced in your question, you will use the following connections:…

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Answer 4

I am happy to help you troubleshoot the 12v pin not getting power on the 7-way connector. On some Fords with factory brake controllers, the 12V pin does not show power unless you are testing it with a trailer connected. Please make sure it is a…

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Answer 5

Trailers use a combined wiring system meaning the brake lights and turn signals are on the same circuits. Since the brake lights are working on the trailer, and because you have tested the vehicle wiring and it is working properly, there is most…

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Answer 6

There is not an industry standard layout for wiring the 4-Way round pin connector, but there is a layout that is most accepted. If you you are looking at the front side of the 4-Way round trailer side plug, the top left prong would be used for right…

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Answer 7

As it seems you already know, when installing a trailer brake controller on your 2007 GMC Yukon you will need to locate the two wires under the hood that need to be connected to fully activate the vehicle's tow package. One is the power wire to…

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Answer 8

If you are wanting to combine the brake light and turn signal circuits on the tow vehicle side trailer connector you can pretty much use any converter for that including #HM48925. On the input side the green wire will go to the right turn signal,…

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Answer 9

In order to setup your 2020 Subaru Outback with a 7-way connector, you first will need to have a 4-way connector installed on your vehicle. You can do both with the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat -…

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Answer 10

I reached out to my contacts at Yakima and they advised that the roof racks that come with the 2018 Nucamp Boondock tab 320s travel trailer are Round Cross Bars for Yakima Roof Rack System #Y00409. The Nucamp Boondock trailer model has 58" bars,…

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Answer 11

The Curt #C51180 Echo Wireless Brake Controller features a triple-axis accelerometer which allows it to be installed in any orientation. The only two requirements for installing the Echo are a functional 7-way and a smartphone with an Apple 8.0 OS or…

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Answer 12

While there are not instructions available for removing the Yakima BaseLine Towers Y00146 from your 2016 Honda Civic I would be happy to walk you through the removal process. This will require the tightening tool that was included with your BaseLine…

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Solution for Installing Trailer Wiring on a Vehicle with Separate Turn Signals from Brake Lights

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