The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. The 4 pin trailer uses yellow brown green and white wires.
Standard color code for wiring simple 4 wire trailer lighting question.
You can find out more Diagram below
Trailer light diagram 4 pin. Trailer electrical connectors come in a variety of shapes and sizes. Installing the 4 pin trailer wires you will need to check the trailer manual for the correct wiring but typically the white wire is known as the ground wire while the brown for tail lights. 4 pin connectors 4 pin connectors are the standard used for most trailers.
4 pin trailer light wiring diagram. 4 pin flat connector at a minimum all trailers need at least 4 functions tail lights brake lights left right signals. Many trailers have three circuits.
4 wires will give these functions so the simplest scheme is a 4 pin connector. I have had to mess with trailer wiring for years once or twice a year anyway and i just cannot keep the color code right ect whiteground brn running lights grn right turn yellow left turn. Note that this type of 4 pin connector is less common that 4 pin flat connector.
4 pin trailer wiring diagram this type of connector is normally found on utvs atvs and trailers that do not have their own braking system. Yellow and green are for left and right turn and brakes. The most common 4 wire connector is the 4 pin flat connector as shown here.
By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights.
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