In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. The 7 way trailer plug is around 2 diameter connector that allows an additional pin for an auxiliary 12 volt power or backup lights.
Let s talk first about the types of electricity you have at your disposal to use within your rv.
Rv trailer wiring diagram. As the name implies they use four wires to carry out the vital lighting functions. They also provide a wire for a ground connection. The four wires control the turn signals brake lights and taillights or running lights.
It s the dreaded 7 way trailer rv plug that we all have come to know and love. Camping survival survival stuff airstream renovation cargo trailers garage tools trailer hitch glamping candle jars projects to try. Various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights.
Use the 7 pin connector anyway see below and just leave out the last 2 wires. Rv electricity is the most confusing utility within your rv. 4 way trailer connectors are.
4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes. When wiring a trailer connector it is best to wire by function as wire colors can vary. Trailer wiring diagrams trailer wiring connectors.
The picture below can be very intimidating. There will be at least 2 to 5 different ways things get charged powered or used. If your truck has a built in 7 pin socket but you only need 5 of the pins.
Most new vehicles equipped with a tow package have connectors. 7 way plug wiring diagram standard wiring post purpose wire color tm park light green battery feed black rt right turn brake light brown lt left turn brake 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. Need to know which color wire go to which post.
Trailer wiring diagrams trailer wiring connectors various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights. Trailers with electric brakes need them too. We have an excellent wiring diagram on our website i will provide you a link so you can look at it.
However let s break it down to systems and basics. Trailer connector wireing diagram. If you re installing or repairing a trailer hitch on your vehicle yourself you ll need to wire in the plug that makes the trailer lights work.
It is usually used. I recommend using a circuit tester like part 40376 to verify your.