The red and blue wire can be used for brake control or auxiliary. Right turn left turn ground tailmarker brake battery.

7 Way Wire Harness Chart Wiring Diagram Images
Wiring diagram for 6 wire trailer plug. 6 way trailer connectors are often used on gooseneck trailers but can be used for other types such as utility boat trailers and 5th wheels. If there is no. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white. 6 way plug wiring diagr am standard wiring post purpose wire color tm park lights brown gd ground black or white s trailer brakes blue lt left turnbrake light yellow rt right turnbrake light green a accessory red the most common variances on this diagram will be the bluebrake redacc wires will be inverted. I have included a help article on trailer wiring that includes a diagram and wiring matrix that explains wire color function and gauge needed among other helpful information. 6 way system rectangle plug.
Use on a small motorcycle trailer snowmobile trailer or utility trailer. There is a suggested and common method for 6 function trailer wiring. 5 wire trailer wiring diagram. They also have one wire for trailer brakes and one wire for a battery connection. 5 way trailer wiring diagram allows basic hookup of the trailer and allows using 3 main lighting functions and 1 extra function that depends on the vehicle. 6 way connectors include the basic connection of running lights brake lights turn signals and a ground wire.
An extra pin allows using another extra function. You will have the following functions.