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Wire Color Match to 4-Way Wiring with Epicord 7-Way Molded Trailer Plug 277-000141  

Question:

I have a trailer with a 4 way connector Gr, Wh, Br and Yl, I would like to add to it separate lighting inside of an attached dog box and possible 12v outlet for charging of additional equipment. I want to confirm my understanding of what I would have coming off of the 7-Way Molded Trailer Wire Connector. It would convert as follows: Old color wiring to new color wiring, Wh = Wh, Yl = Rd, Gr = Br, Br = Gr. Blue, Black and Yellow would become Blue capped off due to no trailer brakes, Black is for powering the lighting and Blue would run my auxilary for the 12v outlet? I currently use a converter down to the 4way. Thanks in advance.

1

Helpful Expert Reply:

Yes, you are correct about the install of the # 277-000141. The wiring colors you mentioned are correct except the blue wire is for brake output from a brake controller. You would want to run the black wire for both the lighting and a 12 volt auxiliary. Unless you wanted to run the same circuit on your tow vehicle up to the battery as well.

The yellow wire you mentioned is reverse light typically.

expert reply by:
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Jameson C

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