Determining Wire Functions on Trailer Side 6-Way Connector

Question

Question:

Gooseneck stock trailer, my plug has red wire and no blue wire. All diagrams Ive found for this type doesnt show red?

asked by: Rob T

1

Helpful Expert Reply:

Most likely the red wire on your trailer side 6-Way connector is for the electric brake circuit, as this is what the blue wire would normally be. With that being said, wire color is not always the best and most accurate indicator of their function, as it's possible that somebody has replaced the original trailer wiring or the trailer manufacturer simply used different colors for this trailer.

To verify the wire functions on the connector, I recommend using your vehicle battery or a spare and running a jumper wire to each circuit to see which function on the trailer is activated. Since the wire colors on your trailer are not standard, this will be the best way to ensure their functions.

expert reply by: Chris R

1

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Answer 1

You cannot go by wire color in most cases because there is no real standard. We have blue for trailer brakes, yellow for left turn/brake lights, brown for running lights, green for right turn/brakes, black for 12 volt power, white for ground, and…

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Answer 2

To me it sounds like the wiring of the trailer connector that is on the trailer is the problem, I have had similar bizarre behavior like that with trailers and it turned out to be that circuits were getting shorted to each other and it made the tail…

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Answer 3

The Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End #PK12706 will match the colors and locations of the attached photo. I've also attached a wiring article to assist further if the colors don't match functions correctly…

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Answer 4

The 7-way trailer wiring format include an auxiliary 12V power circuit that is typically rated for 30 or 40-amps, depending on whether the install is factory or aftermarket. I checked the online manual for the 2016 Ram and page 841 indicates the…

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Answer 5

I can certainly say that is a unique issue that I have not heard before. However, I suspect the wiring on the trailer is what is causing the odd lighting funcion. The trailer may be wired correctly according to the manufacturer but that does not…

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Answer 6

First, you can almost never go by color as there is no real industry standard. You have to go by function when adding a new 7-Way. I have included a picture that shows the trailer side connector and how it should be wired. Ignore the colors, you will…

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Answer 7

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 8

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 9

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 10

Hey Cody, you are installing this B&W Turnoverball #BWGNRK1020 on a 2021 Chevy 2500 correct? If so, the M14 bolts are definitely the correct size. It is possible that the holes in the frame are corroded which is preventing the bolts from…

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Answer 11

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 12

We have run into this quite a few times in the past, and the best option will be replacing the Lance 7-pin connector with a standard 7-way blade connector like the #PK12706. This will give you a standard 7-way connector to plug into the factory 7-way…

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