Wiring Diagram Recommendation for 4-Way Round Trailer Connector

Question

Question:

My towing cable wires colors are green, red, brown and yellow, can you show or explain the way to connect it to connector

asked by: Sol

0

Expert Reply:

Looks like you have a round 4-way connector in the picture you submitted. The colors you mentioned aren't totally a match for standard colors but they are close. Normally the colors are:

White - Ground Return
Green - Right Turn and Brake Lights
Yellow/Red - Left Turn and Brake Lights
Brown - Tail Lights

You'll need to wire by function instead of color since yours aren't a total match.

I have attached a photo that shows typical wiring for a 4-way round connector.

expert reply by: Jameson C

0

click to enlarge

Answer 1

There are so many different diagrams on how to wire a 4-way round trailer connector because a standard has not been set on how to wire this type of trailer connector. This is likely because 4-way round trailer connectors are not very common. I spoke…

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Answer 2

When looking at the front of the socket of the #BLU63XR, wire the 4-way round socket as follows - Top Left - Left stop/turn, yellow wire Top Right - Right stop/turn, green wire Bottom Left - Ground, white wire Bottom Right - Tail Lights, brown wire I…

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Answer 3

I have attached a photo of a typical 4-way round connector with the pins labeled you can check out. The photo has both the trailer side and vehicle connectors labeled.

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Answer 4

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Answer 5

The 4-Pole, Round Pin Trailer Wiring Connector #PK11402 is a standard size used in North America. Do understand that while there is a standard wiring pattern it is possible to be wired differently which could cause issues.

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Answer 6

Most of the time the 4-Way connector is wired as follows. Looking at the front of the socket on the vehicle side with the cover raised the top left pole is the yellow, left turn/brake pole, the top right pole is the right turn/brake pole, the bottom…

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Answer 7

Hey Susan, We have not had the chance to install that specific wiring harness on that vehicle at our facility, so we do not have a video of it being installed unfortunately. I do have the instructions for the blue ox harness #BX8848 and I will attach…

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Answer 8

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Answer 9

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Answer 10

It sounds like you have the turn signal and running light circuits ran backwards so that when either blinker circuit is activated you end up with both lights flashing. This is because the running lights run to both sides of the vehicle and the…

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Answer 11

Hey Geroge, We actually do have a hitch fit for your 2026 Chevy Equinox EV! Right now, the only one that fits is the Curt Class III #C89RV, but even at that it's still a great hitch receiver that can resist the elements and remain strong for a…

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Answer 12

You have it right so far, the 4-way connector is just as you have stated. Remember that Yellow has a L in it so that is the left side brake/turn signal and green has a R in it so that is the right side brake/turn signal. The colors for wiring a 7-way…

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Wiring Diagram Recommendation for 4-Way Round Trailer Connector

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