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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. 4 Flat
  5. Trailer Hitch Wiring
  6. Powered Converter
THIS ITEM IS NOT A FIT FOR
2006 Saab 9-5

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # 118689
Retail:$99.60
Our Price: $71.50
You Save: 28%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2006 Saab 9-5

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Tekonsha Custom Fit Vehicle Wiring - 118689
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118689 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (18)
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Tekonsha Custom Fit Vehicle Wiring - 118689

  • Custom Fit
  • 4 Flat
  • Trailer Hitch Wiring
  • Tekonsha
  • Powered Converter

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection points in rear cargo area
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes ModuLite power converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects to battery to avoid overloading vehicle's electrical system
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your rear cargo area. You will have to remove the rear threshold and some interior lining to access this harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided 15-amp fuse.


Once installation is complete, the 4-way connector will be stowed in your trunk.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.


With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.



118689 Tekonsha T-1 T-Connector - 4 Wire - Modu-Lite Converter Included

Installation Details 118689 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118689

Average Customer Rating:  5.0 out of 5 stars   (18 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.

by:

Got this for my newest car because the last two I ordered were also perfect fits! Thank you etrailer!!



by:
2016 Chevrolet Malibu

The hitch is low profile and barely noticable. I cant say enough good for the product I purchased because it all fit perfect. Only criticism is two things. First the trimming for the hitch on the valance was measured but needed a larger portion of material removed than what the instructions stated. Second the wiring fit perfect except a positive wire had to be run from the battery to the trunk which I was not aware of until installation. Neither of which was a cause of etrailers. Total install time from start to finish was 3.5 hours but I'm not a mechanic. The etrailer price was about $50 cheaper than their competitior. All in all this was a positive experience because everything shipped on time and was included consistent with the product discription. In the future I would consider etrailer as a primary supplier because of how they handled my business on this purchase.

Jim B.

4/4/2018

Its been a year and to everyones suprise Ive been using the hitch to pull a 5x8 enclosed trailer. The harness works flawlessly and the hitch is tight and had handled the miles I have used it for. Im so glad I went this route. Thank you etrailer!



by:
Chevrolet Malibu

You etrailer folks sure know how to spoil a customer. Since I'm a repeat purchaser of your products, I'm still amazed how quickly you fulfill the order and ship it out so promptly. I paid for standard shipping, but if I didn't know better I'd say that it was expedited shipping.
The hitch was well engineered and excellent vehicle specific lighting kit with thorough instructions for both(2017 Chevrolet Malibu).
You "guys" are a "Class Act"!. As Arnold Schwarzenegger would say, " I'll be Back"
Best regards


Jack B.

6/5/2018

Thank you so much for following up with my purchase satisfaction. I sincerely appreciate your professionalism. Yes, very satisfied with the receiver, ball and wiring kit.



by:

I had a great experience with Etrailer.
Ordering was simple. Shipping was prompt. install instructions were to the T.
It was a great deal all around.

John A.

9/21/2018

Great I could not be more satisfied



by:

The trailer hitch and the wiring kit were both excellent quality. The delivery was fast and the instructions and installation videos were very helpful. Don't be afraid to do it yourself. You'll save yourself a bunch of money. Great place to do business.



by:

Very fast shipping wonderful tracking got it right on time great products would highly recommend etrailer.com for all ur trailer needs I would definitely order again anytime thanx so much for my wire harness



by:

Wire harness was very easy to install and the instructions were easy to follow. The installation took longer because I had a hard time getting under the car to run the wire to the battery. Great product and would recommend.



by:

Product fit and functioned as expected. Pulled a trailer 1000 miles with no issues.



by:
2017 Chevrolet Malibu

Excellent company to deal with. Very fast delivery. Excellent videos on how to install hitch and harness. Made the job much easier. Highly recommend.



by:

I had some problems with it but they fixed it fast and sent me the correct product immediately

James

6/8/2022

AWESOME AFTER 1 YEAR



by:
2017 Chevrolet Malibu

Very fast shipping . Easy to install after watching video .



by:
2018 Chevrolet Malibu

Great product that fit my needs. Great customer service.



by:
2016 Chevrolet Malibu

Perfect fit for my 2016 Chevrolet Malibu Hybrid. Easy to install.



by:

My son installed this yesterday, took him a couple hours and it was done



by:
2017 Chevrolet Malibu

Came fast and was perfect!!



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See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • What Functions Do the Green and Yellow Wires on the Tekonsha 118689 Correspond To
    Wires on a trailer wiring harness like the Tekonsha # 118689 will be color coded as a standard; the green wires will correspond to the right side and the yellow wires to the left side. I've linked some helpful articles on vehicle wiring, which includes some diagrams, that you might feel helpful.
    view full answer...
  • Complete Towing Setup For A 2020 Chevrolet Malibu
    Yes, the Curt Trailer Hitch Receiver # C12185 will fit your 2020 Chevrolet Malibu. This hitch has a maximum towing capacity of 3,500lbs and a maximum tongue weight capacity of 350lbs. You'll want to verify with your vehicles owners manual for your vehicle's maximum towing capacity, and compare that rating to the hitch and use the lowest rating between the two. If you're wanting a complete towing setup, you're also going to need wiring, and a ball mount. For wiring, the T-One Vehicle...
    view full answer...
  • Can 2018 Chevy Malibu Tow Small Rental Trailer
    Looks like your 2018 Chevy Malibu has a towing capacity of 1,000 lbs so as long as your small trailer stays under that you'd be fine. You'd need a trailer hitch installed which for that I recommend the Draw Tite part # 36652 because it has more capacity than you'd need and only has the hitch opening visible below the rear bumper which makes easier on the eyes. For trailer wiring you'd then want the part # 118689 because it does not require splicing into your vehicle wiring and comes with...
    view full answer...
    Image 1 for
  • Does Power Wire of Trailer Wiring Harness Need to Run to Battery on 2016 Chevy Malibu
    For your 2016 Chevy Malibu LT the Tekonsha kit part # 118689 is the correct fit and best option. It does need a power wire ran to the front of the vehicle though. Not all vehicles can handle the additional amperage draw of the trailer taillights on the vehicle taillight circuits which is the case if the trailer harness does not have a power wire. Those vehicles need setup that draws power from the battery. Some vehicles have higher rated circuits that can handle this, and others need...
    view full answer...
  • Replacement Converter for T-One Vehicle Wiring Harness On 2016 Chevy Malibu
    There isn't a replacement converter section for any of the T-One Vehicle Wiring Harnesses like part # 118689 so if yours is faulty then you will need a new unit. If you wish to cut the ends of the wires and splice in the new converter you are free to do so as this will save on installation time. It's not uncommon for converters to fail over time and this is actually our most reliable option. That said, securing the converter with both a self tapping screw and double sided tape will ensure...
    view full answer...
  • Trailer Hitch and Wiring for a 2016 Chevy Malibu Premier
    For the 2016 Chevy Malibu the Premier is just a trim package and in this case does not affect the fit of Draw-Tite trailer hitch # 36652. So it will essentially look identical to the vehicle in the instructions which I have linked for you. This hitch was specially designed for the new body style (2016/2017) Chevy Malibu. There is some fascia trimming involved which will be around the hitch receiver. This means that most of the hitch will be hidden but that you will also need to trim the...
    view full answer...
  • How Can I Get the Most Towing Capacity Out of a 2018 Chevy Malibu
    I looked at the owner's manual for your 2018 Chevrolet Malibu and it states that the trailer should never be heavier than 1,000 pounds. It goes into more detail that other factors can influence the capacity (such as speed, altitude, temperature, and others) and that you should contact GM for specific information. Long story short the absolute maximum capacity of your Malibu is no more than 1,000 pounds for sure. With that being said, we do have the parts you need to get the Malibu set...
    view full answer...
    Image 1 for
  • Recommended Wiring Harness and Installing a Trailer Hitch on 2016 Chevrolet Malibu
    The Curt Class II Receiver Hitch # C12185 referenced in your question is confirmed to fit your 2016 Chevrolet Malibu. The installation can be performed fairly easily by any local auto shop. No drilling is required, however the heat shield will need to be modified/trimmed and the exhaust will be temporarily lowered. The estimated installation time is around 50 minutes for an experienced mechanic. I have included the written installation instructions that you can reference. Keep in mind...
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Carrie F
Updated by:
Carrie F
Employee Alexander C
Written by:
Alexander C
Employee Jonathan Y
Video by:
Jonathan Y
Employee Robert C
Test Fit:
Robert C

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