Trailer Wire Diagram 4 Colors. The 4 pin trailer uses yellow brown green and white wires. Wire color gauge molded trailersealed car connector terminal thermo plasticmetal connector.
Standard wiring post purpose wire color tm park light green battery feed black rt right turnbrake light brown lt left turnbrake light red s trailer electric brakes blue gd ground white a accessory yellow this is the most common standard wiring scheme for rv plugs and the one used by major auto manufacturers today. 10 rows trailer wiring color code connector function color suggested minimum wire gauge where to. The brown wire which is responsible for handling the taillights leads to both the light bulbs at the back and the yellow wire runs back to the left to indicate a left turn.
The first diagram is a simple set up of two brake lights two indicators and two side lights.
Always test wires for function and wire. Install the greenbrown wires along the right side of frame. Green right turn brakes yellow left turn brakes brown taillights ยบ white ground 4 wire trailer note. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white.