Trailer wiring
Thread Starter
|
New User
Joined: Dec 2002
Posts: 22
Likes: 0
From: hampton bays United States
Trailer wiring
OK here we go.......
Its an 89 F250 with a flat 4 pin wire t4railer harness. The pin housing itself was ripped off. So I just have the 4 wires. I am buying a trailer that has electric brakes witrh a 7 pin hook up. My problem is this. I am picking up the trailer a few hundred miles away. I'll be bringing it here with no load, so I really don't need the electric brakes. I just need lights. This storm in the northeast has screwed me up insofar as help with wiring and a place to do it. I have a 7 wire cable ( about 4' long) with the male plug, ready to go. Can I just "marry" the 4 wire harness to the corresponding colors of the 7 wire cable and will that gve me lights? Thanks and forgive my ignorance.
Terry
Its an 89 F250 with a flat 4 pin wire t4railer harness. The pin housing itself was ripped off. So I just have the 4 wires. I am buying a trailer that has electric brakes witrh a 7 pin hook up. My problem is this. I am picking up the trailer a few hundred miles away. I'll be bringing it here with no load, so I really don't need the electric brakes. I just need lights. This storm in the northeast has screwed me up insofar as help with wiring and a place to do it. I have a 7 wire cable ( about 4' long) with the male plug, ready to go. Can I just "marry" the 4 wire harness to the corresponding colors of the 7 wire cable and will that gve me lights? Thanks and forgive my ignorance.
Terry
Senior User
Joined: Aug 1999
Posts: 488
Likes: 0
From: Bel Air USA
Trailer wiring
87black150 is probably right, but just in case you hook up the trailer and the lights don't work right here's what to do and what not to do. Don't concentrate on getting the brake lights working. I believe that is where most people mess up. If you get the turn signals working first , your brake lights will work right. Turn on your parking lights, then touch the wires on the trailer to find which one makes the trailer running lights come on. Tie these together. Next turn on the left turn signal and find the wire on the trailer that is your left turn signal by touching the three remaining wires. Next turn on the right turn signal and find the wire that that makes the right turn signal work. The last wire is your grounc and should be white and its hooked up to standard trailer wiring. Be sure to have the trailer attached to the trailer ball so you will have a ground when you do the above.
Senior User
Joined: Feb 2000
Posts: 390
Likes: 1
From: South East Alabama
Trailer wiring
Auto Zone sells a cool little 4 LED test light that plugs into the flat style connector. Once you know the wiring is right and lights still don't work, instead of scratching your head and running from the trailer to the connector and back 50 times, you just dive into the lights. Because with the tester you know the wiring is correct. If you dilly dolly much with trailers and wiring it sure is a headache saver. Cost is $5 - $7 bucks. Don't know if they make one for a seven pin or not.
In your situation just plug the tester to a pigtail flat connector and test the wires from there. Be on the road and outa the cold in no time...
In your situation just plug the tester to a pigtail flat connector and test the wires from there. Be on the road and outa the cold in no time...
