mcal67
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Posts: 9 
1967 Shasta Airflyte
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Post by mcal67 on Oct 17, 2017 18:03:15 GMT -8
Tackling trailer lights this weekend.
You guys talking about the trailer brake colors, I have green and red (braided together) coming from my brakes. I suppose this is a stupid question but where should they be terminated using a 4 flat?
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Post by vikx on Oct 17, 2017 19:19:50 GMT -8
You can not operate brakes with a 4 way flat. 4 way wiring has a Ground, LT, RT and Tow/marker lighting. No room for brake wiring.
You will need a 7 way system, cord and plug to operate the brakes.
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mrmarty51
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1972 HOMEMADE
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Post by mrmarty51 on Oct 18, 2017 4:25:59 GMT -8
If the four way flat is run the length of the trailer, You will need to add an additional wire for the brakes.
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jardin
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Post by jardin on Oct 18, 2017 5:46:54 GMT -8
Umm ....because of the title, when I first read this I also thought the OP was talking about trailer brakes but I think they are referring to brake lights.....maybe the OP can clarify?
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Post by vikx on Oct 18, 2017 20:09:02 GMT -8
You're right Jardin! She may have been asking about brake LIGHT wiring... Please do clarify, @mcal67.
If the above is true, then RT and LT (turn wiring) operate the brake lights. There isn't a separate wire for brake lights.
Test the tail lights. The brighter bulb filament is your RT or LT. Duller filament is TM or Tail running lights and Markers.
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