Cars & Trucks Logo
Posted on May 06, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Looking for color code (diagram) - 7 wire trailer harness/wiring

Want to install 7 point trailer connector in box of truck for towing fifth wheel trailer as opposed to plugging into 7 point bumper connector. would like to know correct color code for each wire before proceeding with installation. any other advice or tips welcomed. Thanks!

Mike

  • lesgaudet May 06, 2009

    Thanks. Already bought a new plug. Will double-check the color code you provided with my Keystone fifth-wheel trailer, just to make sure.

  • Anonymous Mar 03, 2013

    help

×

1 Answer

Ned C Cook

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

President:

An expert whose answer got voted for 500 times.

  • Chevrolet Master 3,433 Answers
  • Posted on May 06, 2009
Ned C Cook
Chevrolet Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

President:

An expert whose answer got voted for 500 times.

Joined: May 04, 2009
Answers
3433
Questions
0
Helped
1437251
Points
9966

If you haven't purchased the plugs yet. The wire color codes should be included in the package.

  • If you are using used plugs ck the back of the plugs for color or function of wire
  • Wht - ground
  • red - stop
  • blue - accessory/aux
  • brown - tail
  • black - Marker
  • grn - left turn
  • yellow - right turn

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

2001 Buick Century installation help for receiving harness. I am attempting to install a connection so I can tow with my Car however, I cannot find any information about this installation anywhere.

Your wire colors are roughly the same as for a standard 4 wire trailer. Dark green is right turn, yellow is left turn. You have brown with white stripe for park lamps--connect this to the brown trailer wire. The white or black trailer wire connects to the car body or frame. Ok?

0996b43f8024496f-z51ydotzssbx3fkw4old43yo-2-0.gif

0996b43f80244972-z51ydotzssbx3fkw4old43yo-2-2.gif
0helpful
1answer

2014 triton mn. How can I connect 7-pin trailer socket into existing wiring harness?

the simplest way to do this is to go to a tow bar installer shop and buy the harness ( around $25.00 aud)
it is a simple action of pulling a harness plug apart and inserting a piggy back plug in the connection
the wires for the trailer are properly installed and all you have to do is wire the plug connection according to the wiring diagram that came with the plug
0helpful
2answers

I am connecting a trailer towing harness to my Nissan 2004 Titan (2wd), to tow my boat and need to know what the color codes to the parking, stop, and reverse wires are.

if you go to the parts store they make them ready to plug in you will have to just unplug the tail lights and plug the wire harness inplace of it then itll plug back into the original spot.
12helpful
2answers

Trailer wiring harness diagrams W/o internet goose chase

Try this Link www.dodgeram.org/tech/mods/electric/trailer_wire.htm
1helpful
2answers

Tow bar trailer socket wiring connection point to car wiring?

The connectors for towing wire harnesses on foresters are generally on the passenger side, below the rear taillight inside the cargo space. some require pulling up the foam block that is between the spare tire compartment and the taillight. Check where you replace the tailights from inside the car, if there isn't a matching connector hanging out there, check around the spare tire compartment, see if you can remove the carpeted foam block next to the compartment and find the plug under there.
2helpful
1answer

Factory 99 dodge trailer plug wiring

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..

0helpful
2answers

2007 Chevy Express Trailer Wiring

Go to an auto parts store and see if you can have a look at some electric brake modulators and trailer connectors they almost always have instructions in them that detail standard colors for any install. The standard diagram is often right on the back of the connector package.
1helpful
1answer

Installing a 7-pin trailer towing recptical on a 1991 Ford F150.

I believe you can look up the manufacturer of the trailer plug kit and find the wiring diagram there. On alot of the trailer plug kits, they have pics and diagrams in the package. The 7 pin plug (truck side) is available with the pig tail set up that plugs directly into the wiring harness for the lights. Then all you would have to worry about is the 2 wires for the electric brakes.
Not finding what you are looking for?

8,286 views

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6988 Answers

john h

Level 3 Expert

29494 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...