What is the blue wire on a trailer plug?
It is an auxiliary wire typically used to connect the reverse lights from the tow vehicle to the reverse lockout solenoid located directly behind a surge brake actuator.
What is the red wire on a trailer plug?
The red wire is the turn signal wire and will be run to the green wire of your harness if its the right turn signal side, and the black wire will run to the brown wire of your harness.
What is the black wire for on a trailer plug?
The black wire of the Hopkins 7-Way Molded Trailer Wire Connector # HM20048 carries the 12 volt accessory circuit. This is the circuit that will typically power interior lights or charge a trailer’s battery.
What does ax stand for on a trailer plug?
GD = Ground, white wire TM = Tail, brown wire LT = Left Turn, yellow wire RT = Right Turn, green wire AX = Battery, black wire EB = Electric Brakes, blue wire NOTE: Locate wires and pin location by function only.
What is the yellow wire for on a trailer?
On the left side, the yellow wire carries left turn and brake lights and the brown wire again carries the running lights. With only 2 wires, these lights must ground through the mounting studs. Make sure to wire in the new lights by function to the existing trailer wiring and not by color.
What is the green wire on a 7 pin trailer plug?
What is the Color Code for 7-Way Trailer Wiring?
- Green: Right turn/brake light.
- Yellow: Left turn/brake light.
- Brown: Tail/running lights.
- White: Ground wire.
- Blue: Brake controller output.
- Black: Battery hot lead.
- Purple: Reverse lights.
What gauge wire should I use for trailer brakes?
10 gauge wire
How do you wire a reverse light to a trailer plug?
To connect back up lights you need to have a 7-way trailer connector on both your trailer and tow vehicle. On a 7-way the reverse lights are powered by the center pin. To connect reverse lights to the trailer’s 7-way you can use 16 gauge wire # 16-1-1, or 14 gauge # DW07550-1 if you have a longer trailer.