Exemplary Wiring Car For Trailer Lights

If it does not you will need additional wiring.

Wiring car for trailer lights. If you own an older vehicle chances are it will have neither trailer package factory installed nor t connectors available for it. In this case you can go with one of universal trailer wiring kits the aftermarket offers today. In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest.

It accomplishes the same thing for 5 wires but with a connector that s compatible with your truck. Install the grommet and pull through the wire. For cars the assembly is likely located inside the trunk.

This is accomplished by tapping into the tow vehicle s electrical harness to transfer power to the trailer wiring system. For trucks remove two bolts on the side of the truck bed and pull out the tail light assembly. Use the 7 pin connector anyway see below and just leave out the last 2 wires.

Reliable and relatively easy to install these kits contain. By law trailer lighting must be connected into the tow vehicle s wiring system to provide trailer running lights turn signals and brake lights. Strip the wires solder the connection and add shrink tube.

This vehicle to trailer wiring harness creates a standard trailer wiring connection by plugging into vehicle harness and tail light assembly and then routing the 4 way harness to the rear end of a vehicle. Make sure the wiring harness will reach the trailer s connector receptacle. The concept is brilliant in its simplicity.

Since the tow vehicle s tail lights have all the connections we need for the trailer turn brake and daytime running lights you unplug the tail lamp harnesses plug in the t connectors to both the vehicle harness and the tail lamps then route the 4 flat harness to the rear. Each light has it s own ground shown by the white wire that connects directly to the bed on the light brackets. Connectors are used between the two to allow disengagement when not towing.