Wiring a 7-pin plug on your truck can be a little intimidating when you are looking at it from outside the box. Each connects to a different function: Never put your trailer on the road with questionable wiring or a lighting system that is already known to be failing. If you need more information we are happy to help, to contact us. Remove the right taillight assembly and disconnect the wiring harness. These four colored wires make up your trailer's wiring system.
He has prepared business plans, proposals and grant requests. As drivers slow down behind a vehicle that is pulling a trailer, they will often instinctively focus on the bright brake lights as a reference point for where to stop and how quickly the vehicle in front is stopping. Ensure that all of the terminal screws are tight. While it's never a good idea to dive into a wiring project blind, trailer wiring is actually very simple to. Is light bar directly wired from the plug or is there a tee? Note: The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer. Hold a soldering iron against the bottom of the wire joint.
Vents click to display Trailer Wraps by Local Wraps Your car, truck, van or your entire fleet can be advertising for you at all hours of the day and night. Get out your regular old and put the clamp end on a good grounding point. A poor ground that is strong enough to provide some lighting functions but not all. Connect to the right-turn signal and the running lights. Twist the new wire around the strands of the existing wire.
The images below show the Typical Trailer Wiring Diagrams for 4 Pin Flat Connectors all the way to 7 Pin Round Connectors. Even if you have it all figured out, it's a good idea to test it before you make any new installations. Having a hard time wiring your new trailer light system? If a ground problem exists, it will show at this point. If you have a torque wrench, tighten the negative cable to the specifications given in the manual for your truck. Find the location-identification section in the manual for your truck to determine exactly where the ground connects to the truck. Use wire trimmers to reveal about 1 inch of copper wiring. Plug the memory saver into your truck's 12-volt accessory socket.
If you've ever found yourself in a Walmart parking lot, in the dark, in the rain, trying to fix your trailer wiring with flashlights you know how much fun it can be. If your trailer needs a complete overhaul on the trailer light system take a look at our trailer light kits. While they might be deemed at fault, no one needs the headache of dealing with insurance companies—nor do you want whatever cargo you are carrying to be damaged or anyone to be injured. The seventh function met is license illuminator. Large trucks, vans or suvs can handle more. Mount the plug to your truck's bumper following the directions included with the plug kit. Warnings If you are wiring a harness on a vehicle that has an existing warranty, professional installation of the plug is recommended.
The first could be a short somewhere in the system. Moore is a state of Michigan-certified mechanic and is pursuing an Associate of Arts in automotive technology from Lansing Community College. Connect to the left-turn signal and reverse lights. Be sure both your factory and trailer wiring wires are still where you want them, then fold the top of the Scotch lock over and press it tightly together with pliers. Has your trailer been sitting awhile? Should I unplug my boat trailer when I back my boat into the water? This diagram shows the colors of a basic trailer wiring setup as well as what each wire is supposed to be connected to. If you have a good repair manual, and you should, you can use the wiring diagrams inside to find the correct wire for your trailer wiring.
Wait for the liquid tape to dry, zip-strip the wires to the existing wiring harness and feed them through the hole in the right bed panel. There is a lot wiring that you have to tie into your truck's wiring harness, but it is easier to do than it seems. This is usually related to one of two things. Whether it's a new installation or a repair job, I can help you with your trailer lights, wiring, and installation. Is your trailer working every day? Disconnect the wiring from the taillight and set the taillight assembly aside. Locate this wire where it comes out of the interior fuse box. This trailer wiring installation was performed on a Nissan Titan pickup, but your application will be similar.
Single Axle Trailer Wiring Diagrams Tandem Axle Trailer Wiring Diagrams. When the taillights and brake lights are used at the same time, it creates the maximum amp load of the lights on the trailer. The red and blue wire can be used for brake control or auxiliary. The first is by a separate wire coming from the back of each taillight lamp assembly being secured to the frame. Brush a thick coat of liquid tape over the wire joint. Another easy maintenance tip is to coat all exposed metal surfaces with dielectric grease, including trailer harness plugs, bulb sockets and contacts. Department of Transportation mandates that all trailers on the road have to be equipped with trailer lights.