4 Wire Trailer Wiring Diagram Red Black White Yellow. Blue electric brakes or hydraulic reverse disable see blue wire notes below in the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. Featured video brown wire to the tail or parking lights green wire to right turn signalbrake light yellow wire to the left turn signalbrake light.
This article will be discussing trailer wiring color diagram. In this 7 pin trailer wiring diagram the red wire provides auxiliary power to the trailer while the black wires are shifted to indicate the reverse lights. You must check the trailer manual to see if the wiring is correct but normally the white wire is called the ground.
Red 10 gauge.
Right turn signal stop light green left turn signal stop light yellow taillight license side marker brown and a ground white. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. Check with a test light or vom. Yellow 14 gauge.