Identifying Circuits of 7-Way on Trailer to Rewire New Connector
Question:
I have a 7 way plug that has been destroyed. It has 6 wires in it. The yellow and black are connected to the same terminal but I have no clue what locations they were in. The wiring diagrams I am finding online have all wires going to a different terminal does not work. This trailer only has turn signals, running lights and brake lights, no reverses lights or power brakes. I purchased this Hooper brand trailer new when I purchased a tractor package deal, so it was wired this way from the factory. There is 1 green, 1 red, 1 white, 1 brown, 1 yellow and 1 black wire with the yellow and black tied together on 1 terminal. How should it be wired for the tail, turn signal and brakes to work?
asked by: Chris W
Expert Reply:
While the colors you mentioned are typical colors used for trailer wiring what we have found is that the wiring colors aren't always a perfect match. Normally on a utility trailer like what you have green is right/turn, red is brake, white is ground, brown is taillight, yellow is left turn/stop, and black is 12 volt accessory.
Also are the pins of the 7-way round or are they a flat blade? I attached a picture that has the three standard ways a 7-way is ran on a trailer. When in doubt you can trace the wires to where they terminate on the trailer or you can run a jumper wire from a 12 volt battery's positive post and see which circuit activates.
Product Page this Question was Asked From
Pollak Heavy-Duty, 7-Pole, Round Pin Trailer Wiring Socket - Vehicle End
- Trailer Wiring
- Trailer Connectors
- Vehicle End Connector
- Plug Only
- 7 Round - Round
- Pollak
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