Yota Bill wrote:Right there is a good example to show there is really no set standard that all manufacturers follow. A normal color code would use yellow for left stop/turn, green for right stop/turn, brown for running lights, etc. Also, red is often used as battery charge, and black is an aux wire...sometimes the black is used as the battery charge wire...also, not all harnesses have a purple wire, or even a black wire, for a 7 wire conductor. I've also seen some that did not have a white wire, and used the black wire as the ground.
Always test by function only, and do not assume that any color code was followed.
This is exactly what I ran into while trouble shooting a dead short on my trailer wiring. After looking at the e-trailer 7way wiring diagram it all makes sense now.
Even though I have a enclosed cargo trailer, the trailer manufacturer has the 7way plug wired as if it was a RV.
They have green as run/park lights,yellow as reverse lights, red as left turn/stop, brown as right turn/stop, black as 12V/aux etc. I had me going crazy for a second, then I broke out my meter and realized what they did.
Martin