Home » » 4 Pin 7 Pin Trailer Wiring Diagram Light Plug

4 Pin 7 Pin Trailer Wiring Diagram Light Plug


This article shows 4 ,7 pin trailer wiring diagram connector and step how to wire a trailer harness with color code ,there are some intricacies involved in wiring a trailer. Some trailers come with different connectors for cars and some have different wiring styles. If you follow our trailer wiring diagrams, you will get it right. Some connectors are 4-pin while some are 7-pin.

4 pin trailer light wiring diagram :

4-Pin Connectors

4-pin connectors are the standard used for most trailers. Many trailers have three circuits. The circuits are for left and right brake lights and running lights. Three wires are for the trailer while the last wire is the ground wire. The ground wire should be run from the frame of the vehicle to the trailer. There must be a very consistent metal to metal contact for the ground wire. So, do not run the wire from the bumper or the hitch of the car. The 4-pin standard flat style connector has four contacts with a male pin on the vehicle side for the ground.

Wiring the 4-pin connector

You will need a volt meter and a cutting plier to splice the wires. Turn on the running lamps of your vehicle. Probe the wiring to determine which of the wire that leads to the taillight is for the running lamp. Splice this wire and bring it to the vehicle end of the connector. The connection diagram below will tell you the exact place to place the wire. Repeat the process above for the left turn signal and the right turn signal lights

4 pin trailer plug  light wiring diagram color code

Thir is standard color code for a trailer light 4 wire :

  • Brown wire:  Tail light and marker light
  • Green wire :  Right Turn Signal
  • Yellow wire:  Lift Turn Signal
  • White wire :  Trailer Ground

7 pin trailer light wiring diagram :

7-Pin Connectors

7-pin connectors are needed because some trailers need extra connections due to the fact that they have multiple circuits. There are pins for electric trailer brakes, auxiliary power and reverse lights.

7 pin trailer plug  light wiring diagram color code

Thir is standard color code for a trailer light  7wire 
  • White wire :  Trailer Ground
  • Brown wire:  Tail light and marker light
  • Green wire :  Right Turn Signal
  • Yellow wire:  Lift Turn Signal
  • Blue wire    :  Trailer  Brake
  • red wire      : Auxiliary Power

Extra Notes

  • It is good to smear some dielectric grease on the connectors so that the pins will not be corroded by moisture.
  • Ensure everything is properly tightened and fixed so you do not have a loose connection. It will also save you the stress of troubleshooting later on.
Are You Interested in article :


100 comments:

  1. these wiring diagrams are wrong, red wire is brake light wire not aux power wire (black can be used for that...as it IS the AUX wire) and the blue wire is electric brake control wire for those larger trailers that have those 12v brakes...

    ReplyDelete
  2. Great article with clear drawings - thank you

    ReplyDelete
  3. I am thankful for the article post.Looking forward to visit more.

    www.office.com/setup

    ReplyDelete
  4. Billymark is a creative person who has been writing blogs and articles. He writes about the latest updates and how it can improve the work experience of users. His articles have been published in many popular e-magazines, blogs, and websites.
    office.com/setup | office.com/setup | office.com/setup | mcafee.com/activate | billy mark | office.com/setup

    ReplyDelete
  5. Hello, I check your blog regularly. Your writing style is awesome, keep up the good work!
    Yeh Rishta Kya Kehlata Hai

    ReplyDelete
  6. hello dear ,Incredible Article… I want to peruse your articles on the grounds that your composition style is excessively great, its is extremely useful. I really welcome the article post a debt of gratitude is in order for sharing... I am Microsoft outlook support office.com/setup
    contat us for office com/setup

    ReplyDelete
  7. Install office.com/setup with Product Key - Login to https://www.officemsoffice.com and enter Office product key to activate office setup. Now your Device is ready to Use MS Office.

    office.com/setup
    office setup key
    office activation key

    ReplyDelete
  8. This is my first comment here, so I just wanted to give a quick shout out and say I genuinely enjoy reading your articles. Your web page provided us useful information. You have done an outstanding job.
    office.com/setup
    office.com/setup
    office.com/setup

    ReplyDelete
  9. Thank you so much for sharing these amazing tips. I must say you are an incredible writer, I love the way that you describe the things. Please keep sharing.

    For more information visit on office.com/setup | office.com/setup | office.com/setup | Norton.com/setup | office.com/setup | Norton.com/setup


    ReplyDelete
  10. How do I wire reverse lights on my trailer if the trailer side of the pin is missing

    ReplyDelete
  11. I m Fascinated by this post.A new way of seeing things in different aspects of life and in general.The way i see this, if you ask me,It will encourage promising Bloggers and Vlogers.Thank you for letting others to know about it.

    ReplyDelete
  12. McAfee always does an amazing job of keeping you safe from different viruses, malware, online threats, and cyber attacks. It is the complete, accurate, or handy antivirus security software. Learn how to download, install, and activate mcafee.com/activate without creating an error. Get assistance for how to enter 25 digit alphanumeric product key code.

    ReplyDelete
  13. McAfee dependably works to perfection of protecting you from various infections, malware, online dangers, and digital assaults. It is the finished, precise, or helpful antivirus security programming. Figure out how to download, introduce, and enact activate without making a mistake. Inspire help for how to enter 25 digit alphanumeric item key code. Visit mcafee.com/activate

    ReplyDelete
  14. Nice one! thank you so much! Thank you for sharing this post. Your blog posts are more in
    Visit : mcafee.com/activate | office.com/setup | norton.com/setup

    ReplyDelete
  15. Microsoft Office is providing complete cloud-based productivity package across the globe. Get single solution for downloading, installing, re-installing, and activating it by using 25 digit alphanumeric product key code from  office.com/setup. The alphanumeric code is used for activating the Microsoft office. Get assistance for Office 2007, Office 2010, Office 2013, Office 2016, and Office 365.

    ReplyDelete
  16. Activating the antivirus software is easy and quick. But, sometimes you may face certain problems while doing so. It might be due to mcafee retailcard or any other problem. If you face any such problem, you can seek our help and guidance.
    https://www.mcafeecommtpretailcard.com

    Mcafee.com/mtp/retailcard
    mcafee retailcard
    McAfee MTP Retailcard

    ReplyDelete
  17. I’m really impressed with your article, such great & useful knowledge you mentioned here. Thanks for sharing your information. any issues Then call *Norton.com/setup* Support Toll free Number - +1-877-301-0214 And you problem is resolve very easy method and Norton setup Related services provide 24*7

    ReplyDelete
  18. The post you shared is very unique and informative. Thanks for sharing such a useful post.

    norton.com/setup
    mcafee.com/activate
    office.com/setup

    ReplyDelete
  19. I really happy found this website eventually. Really informative and inoperative, Thanks for the post and effort! Please keep sharing more such blog.

    norton.com/setup

    norton help

    roadrunner email

    ReplyDelete
  20. Canon.com/ijsetup To get started with your printer download you must need valid model number & visit http://canon.com-ijsetup.com/ and we can also help you with your entire process to setup online printer
    Canon.com/ijsetup

    ReplyDelete
  21. Such a more valuable information. I also read your all Blogs. This is awesome!! I’ve always enjoyed reading that type of blog. Keep writing such kind of info on the page. I am really impressed with this type of writing. Thanks for sharing with us. Norton.com/setup

    ReplyDelete
  22. I am often to blogging and i really appreciate your content. The article has really peaks my interest. I am going to bookmark your site and keep checking for new information. ball games

    ReplyDelete
  23. HP Help Number
    HP Printer Support Number for all HP printer issues. Our professional team is available 24/7. If you have issue in future calling 1800-608-2315 our HP Printer Support Number is the best ways for solve your issue quickly, We provide HP printer Support in real-time as the customer you can talk to the support team and explain the problem. In other way we provide technical support through remote system in which our technician take a control of your device.



    hp printer support help number
    hp support contact number
    hp contact number
    hp technical support number usa
    hp laptop technical support number

    ReplyDelete
  24. India's Best satta fix jodi
    , Satta Matka Site. We Are Provide satta matka result , indian satta matka, satta fix , satta matka tips, Mumbai matka Jodi, satta king , online satta matka, satta matka fix jodi And Much More please visit this for To test your luck

    ReplyDelete
  25. only4pets is India's Best website for online Pet Shop search serving since 2005 and supply all type of Pets. we are provide you best pet service Adopt Pets online in india .
    Adopt dogs near me
    Adopt cat near me

    ReplyDelete
  26. "Extraordinary Article… I want to peruse your articles on the grounds that your composition style is excessively great, its is extremely useful. I really value the article post a debt of gratitude is in order for sharing... WE are Buy Ayurvedic Herbs Online get in touch with us for all Buy Ayurvedic Herbs

    ReplyDelete
  27. Visit mcafee.com/activate to buy a plan and know how to download, install and activate McAfee on your pc to get real-time protection against cybercrime. Also, protect and lock your Android or iOS phones with McAfee activate mobile app.
    Mcafee.com/activate | Mcafee activate | Mcafee Activate 25 digit code | Mcafee log in | Norton.com/setup

    ReplyDelete
  28. Thank you so much for sharing such a superb information with us.
    office.com/setup

    ReplyDelete
  29. Microsoft Office is providing complete cloud-based productivity package across the globe. Get single solution for downloading, installing, re-installing, and activating it by using 25 digit alphanumeric product key code from  office.com/setup. The alphanumeric code is used for activating the Microsoft office. Get assistance for Office 2007, Office 2010, Office 2013, Office 2016, and Office 365.

    ReplyDelete
  30. Get one stop solution with Norton antivirus security software and secure your devices from various types of malware and cyber attacks. It is easily available in the market or over the internet. A user can easily purchase it from the retail store or direct from the official website norton.com/setup . Get assistance for downloading, installing, re-installing and activation Norton antivirus. For activating the software, you need to enter 25 digit alpha-numeric product activation key code and successfully activate the software into your device.

    ReplyDelete
  31. Nice blog. you did really great. Thank You for sharing the information .
    MS office.com/setup suites includes Excel, Word, PowerPoint, and OneNote. However, Office Setup suites consist of different features and applications for home and business users, people who need office Setup access solely on the Internet and people who need offline Office access, and for distinct payment options. There various versions of Office include Office 365, Office 2019, Office 2016, Office 2013, Office 2010, Office 2007, and Office 2003. Originally released in the 1990s, MS Office has transformed from its simple origins into the best productivity suite across the world.
    Kaspersky Total Security | Brother printer drivers

    ReplyDelete
  32. Get started with McAfee Protection by redeeming your product at mcafee.com/activate. If you're facing issues, then contact us our McAfee activate support number.

    Mcafee.com/activate | Mcafee activate | Mcafee Activate 25 digit code | Mcafee log in

    ReplyDelete
  33. Great blog. Nice opportunity. This is Great post, i will Read it i hope you will Write new post in some days I will wait your post. Thank you for sharing this blog
    Kaspersky Total Security is one of the most widely used security software. You can get Kaspersky Total Security at the best prices and find products that suit your needs. We can also help you with all your support and troubleshooting requirements for Kaspersky Activation Code . We have a team of professionals who are skilled in handling all aspects of Kaspersky Total Security and this is a major benefit for you. Contact us for Kaspersky support !
    We also helps in installing Brother printer drivers .

    ReplyDelete
  34. Thank you so much for sharing this post, I appreciate your work.It was a great informative post.Go so many useful and informative links.Loved your writings also. Concept of the topic was well discussed. Love to come here again.
    The Brother printer drivers Update Utility for Brother devices is intelligent software which automatically recognizes your computer’s operating system and Printer model and finds the most up-to-date drivers for it. Brother Printer Support because There is no risk of installing the wrong driver.
    Office 365 Download | Office 2016 Download

    ReplyDelete
  35. Norton.com/setup - Learn here how to download, install, and activate your Norton setup on your computer and other devices. just visit www.norton.com/setup and follow step by step.

    norton.com/setup | Norton setup

    ReplyDelete
  36. Given article is very helpful and very useful for my admin, and pardon me permission to share articles here hopefully helped :

    Cara Mengobati Kaligata Secara Alami Dan Cepat

    ReplyDelete
  37. HP Printer Support Phone Number

    Brother Printer Support Phone Number

    Brother Printer Support Phone Number


    Lexmark Printer Support Phone Number
    Lexmark Printer Support Phone Number


    HP Printer Support phone Number
    HP Printer Support Phone Number


    Epson printer Support Phone Number
    Epson Printer Support Phone Number


    HP Printer Installation Help
    HP Printer Installation help

    ReplyDelete
  38. May be useful for all, helpful article once and pardon me permission to share also here :

    Cara Menyembuhkan Kista Payudara Secara Alami

    ReplyDelete
  39. HOme PAGE
    Epson Printer Support Phone Number

    Epson Printer Technical Support Number
    Epson Printer Technical Support Number

    epson printer drivers download
    epson printer drivers download

    epson printer prints blank pages
    epson printer prints blank pages

    epson printer error code 0x800706b9
    epson printer error code 0x800706b9


    Canon
    Canon Printer Support Phone Number


    Canon Priner Technical Support Number
    Canon Priner Technical Support Phone Number


    Canon Printer Customer Support Number
    Canon Printer Customer Support Number

    Epson Printer Helpline Number
    Epson Printer Helpline Number

    ReplyDelete
  40. This is really an amazing article. Your article is really good and your article has always good content with a good powerpoint with informative information.
    mcafee.com/activate

    ReplyDelete
  41. HP customers, we at HP Support Help 24X7 strive hard to solve these issues
    by imparting the comprehensive solutions to the customer queries and concerns. Our strength of listening is what that makes us unique.
    Any complications regarding the HP products including Printer, Computer, Laptop, Tablet, Scanner, Desktop,and Driver
    Support will be dealt with and solved by our Technical Support Specialists.

    ReplyDelete
  42. Given article is very helpful and very useful for my admin, and pardon me permission to share articles here hopefully helped :

    Cara Mengatasi Sakit Pinggang Saat Hamil Secara Alami

    ReplyDelete
  43. The Epson Printer Customer support has effective chat, email and call support. They are available and accessible 24*7 to provide the best solution with expertise. You can get in touch with the experts at our helpline number at any time, day and night.

    Lexmark printer support
    Hp printer support number
    Brother printer customer support

    ReplyDelete
  44. Thanks for this wonderfull content and information.I found this website eventually. Really good inoperative, Thanks for the post and effort! Please keep sharing more such blog. mcafee.com/activate | HP Printer Assistant | HP Printer Support Number

    ReplyDelete
  45. Awesome write-up. I’m a normal visitor of your web site and appreciate you taking the time to maintain the excellent site. I’ll be a frequent visitor for a really long time...Pinoy Tv.... https://psduikit.com

    ReplyDelete
  46. Awesome write-up. I’m a normal visitor of your web site and appreciate you taking the time to maintain the excellent site. I’ll be a frequent visitor for a really long Time Pinoy TV... https://pinoychannel1.su

    ReplyDelete

Tester Pen Non-Contact