Some manufacturers will use red black wires instead of brown green yellow. The minimum suggested wire size for a 4 way trailer plug is 18 gauge for the turn brake and running lights. For cars the assembly is likely located inside the trunk. If it does not you will need additional wiring. 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. How to wire a trailer plug 7 pin diagrams shown. Next up we have the twelve pin plug. If you tow a trailer or caravan that has either a seven pin flat or twelve pin flat both of these can plug into the twelve pin on your car. On the tow vehicle our preference is to mount a twelve pin flat. 12 pin trailer plugs.

You get everything that you connected on the five and seven plus you now have five extra pins to wire up various accessories. If it does not you will need additional wiring. Next up we have the twelve pin plug. There is a standard method of wiring a 7 pin trailer connector. In this video we go over how easy and fast it is. On the tow vehicle our preference is to mount a twelve pin flat. Some manufacturers will use red black wires instead of brown green yellow. The minimum suggested wire size for a 7 way trailer plug is 16 gauge for the turn signals brake lights reverse lights and running light wires. For trucks remove two bolts on the side of the truck bed and pull out the tail light assembly. If you don t follow this your trailer or tow vehicle can t be used with any other implement.

On the tow vehicle our preference is to mount a twelve pin flat. Also you can plug a seven pin flat into a twelve pin flat making it more versatile. 12 pin trailer plugs. If you tow a trailer or caravan that has either a seven pin flat or twelve pin flat both of these can plug into the twelve pin on your car. In this video we go over how easy and fast it is. If it does not you will need additional wiring. The suggested minimum for the ground brake power and battery hot lead wires is 12 gauge. The suggested minimum for the ground wire is 16 gauge. 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. The minimum suggested wire size for a 4 way trailer plug is 18 gauge for the turn brake and running lights.

For cars the assembly is likely located inside the trunk. Make sure the wiring harness will reach the trailer s connector receptacle. Next up we have the twelve pin plug. 12 pin trailer plugs. 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. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. Some manufacturers will use red black wires instead of brown green yellow. On the tow vehicle our preference is to mount a twelve pin flat. The minimum suggested wire size for a 7 way trailer plug is 16 gauge for the turn signals brake lights reverse lights and running light wires. If you don t follow this your trailer or tow vehicle can t be used with any other implement.

For trucks remove two bolts on the side of the truck bed and pull out the tail light assembly. There is a standard method of wiring a 7 pin trailer connector. You get everything that you connected on the five and seven plus you now have five extra pins to wire up various accessories. The minimum suggested wire size for a 7 way trailer plug is 16 gauge for the turn signals brake lights reverse lights and running light wires. Does your vehicle have a 4 flat trailer wiring harness but you need to tow a trailer with a 7 way harness. Some manufacturers will use red black wires instead of brown green yellow. The suggested minimum for the ground wire is 16 gauge. If it does not you will need additional wiring. If you don t follow this your trailer or tow vehicle can t be used with any other implement. The suggested minimum for the ground brake power and battery hot lead wires is 12 gauge.