Posted by Destroked 450 on April 09, 2019 at 08:31:48 from (66.38.93.182):
In Reply to: 7 way trailer plug posted by T in ne on April 08, 2019 at 21:33:23:
I was confused the first few times I had to rewire the 7 pin flat plug on my trailers.
Industry standard long before the RV 7 wire flat pin plug was even thought of was
Yellow wire - Left turn
Green wire - Right turn
Brown wire - Tail lights
RV mfg's decided not to use that standard and used those colors for different functions.
Yellow wire - Reverse lights
Green wire - Tail lights
Brown wire - Right turn
The average guy wires by color and doesn't take time to write down what wire came from where when they take the wires out of a broken plug, or worst yet is trying to rewire the plug after the wires have been yanked out.
Guy replaces a cracked plug on his RV following the digram that came with the new plug, when finished everything works "YEA", walks back to the utility trailer hooked to the RV and finds the wires ripped out of the plug. No big deal just wire it up exactly like the instructions showed on the plug they just finished wiring, when they get done nothing works right and their like "What the H", I just wired the RV and everything works perfect, why won't the lights on this stupid trailer work.
Personally I think the RV industry should make those 3 wires match the rest of the industry.
Also the utility trailer industry should change that dumb purple wire to red, every after market 7 wire cord I've found has a red wire and no purple.
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