Trailer wiring diagram

Hi. Thanks for your question. For the diagram of Tail Light you can visit https://www.reliable-store.com and download the entire workshop manual. It has all the information along with the diagrams for better understanding. Good day!

you must make sure you have trailer wiring converter if not factory installed. check links below for good info. press the helpful button


Troubleshooting 4 and 5 Way Wiring Installations

Fix Trailer Lights Instructions Diagrams

Testing Trailer Lights and Diagnosing Problems

Wiring Your Trailer Hitch

Many trailer sockets have a live wire to operate the electric fridge in the trailer. It is possible that you have a short from this live point to the light that is on, or else a faulty connection. Get a wiring diagram from the net - search for "trailer plug pinout" or something like that, you will get a very extensive list of standard wiring diagrams for the trailer plug.

Here are some trailer wiring diagrams that should assist you to properly wire your trailer connectors. Use a test light to confirm each wire and solder any wires for a permanent connection.

I have the exact same issue. I have also tested my trailer on other vehicles and it works fine. I even purchased a light up tester and found the problem at the harness. It seems like a bad ground to me but I can't seem to find one.

The trailer lights have a common brake/turn wire while the truck has seperate turn and brake lights. I think the problem lies with the device that marries the two for the trailer wiring but I don't know where to find it?

Also try http://www.etrailer.com/faq-wiring.aspx. They have a great website with lots of info.

You'll need to disconnect the wires from either the truck connector or the trailer connector...
I highly suggest purchasing a voltage checker- it looks like a screwdriver with a pigtail of wire with an alligator clip on the end. The tip of the 'screwdriver' has a point for probing. The light in the probe will light up...makes it easy to trouble shoot without a helper behind the trailer.
Hook the aligator clip to a good positive grounding point on the bumper or frame(not painted).
then pin by pin on the truck connection, stick the probe on each terminal tab.. and write a simple diagram where you find brake, tail, backup, etc...
Then i'd suggest, taking the connector off of your trailer, exposing the wire ends.
Run again thru your diagram and turn on each light of the truck. As you do, touch the wires from the trailer to that specific terminal. (make sure your ground wire is attached on the trailer) you can mark each wire with a piece of tape and label it which is which.
then simply attach your trailer wires according to your diagram to the terminals in the connector... that should get you in business..
hope that makes sense...
That way if the factory wiring harness remains the same, you'll be able to use it with other trailers if the need arises..

Get a tester light the type with an alligator clip and a sharp point.
Check each wire for your brake lights,blinkers etc.
i.e. With the blinker light on find the correct wire and splice into it with the corresponding light on the trailer. ( DO NOT CUT THE TRUCKS WIRE)
Remove the covering and twist the plug wires around it and tape or shrink wrap if you can.
Hope this helps

Hi there;

Here is the wiring diagram for the trailer wiring for your truck.

Hope this helps
Farrout!

The diagram will do you no good it you do not have amber turn signals on your trailer. What you need is a "black box" that, when wired correctly, interprets the amber turn signal on the truck into a pulsed flash to the red brake lamp on the trailer. If the trailer does not have amber turn signals, it is impossible to wire a harness with a diagram. Sorry.