How Do You Wire Trailer Lights, Plugs And Sockets?
This article will explain how to wire trailer lights and plugs, and how to wire the supply socket on the vehicle. Find a suitable place to mount the trailer socket at the rear of the car, as close to the trailer hitch as possible. Take care around exhaust systems, and make sure it won’t scrape; for e.g on a sloped driveway. Locate a grommet that seals a hole between the underbody of the vehicle and the interior. After checking on both sides that it is clear to use, cut a slot in the grommet and push the trailer cable through. Now you have the cable in the car, locate which side of the car the main floor harness runs on, as this will have all the wires you need to tap into. Find the plug or loom that is before the taillights and using a test light, and the help of an assistant and the ignition OFF, ground the test light wire and have the assistant apply the foot brake. Probe each wire in the harness until the test lamp lights. Have them release the brakes. If the light goes out, this is
