1. Accessories and Parts
  2. Tekonsha
  3. Wiring
  4. Power Wire Installation Kit
ModuLite Installation Wiring Kit

ModuLite Installation Wiring Kit

Item # 118151
lowest price pledge
Retail:$24.89
Our Price: $14.01
You Save: 44%
Accessories and Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.86 lbs
Quantity: 
In Stock, Ships Today
118151 - Power Wire Installation Kit Tekonsha Accessories and Parts
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

This kit provides the wire to be run to the vehicle battery to power the lights on the trailer. Works will all ModuLite wiring harnesses and includes all of the connectors necessary to complete the installation of the ModuLite wiring harness. Call 800-298-8924 to order Tekonsha accessories and parts part number 118151 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for ModuLite Installation Wiring Kit. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (11)
  • Q & A (65)
  • Videos (11)
  • Photos
  • Why etrailer?

Tekonsha Accessories and Parts - 118151

  • Wiring
  • Power Wire Installation Kit
  • Tekonsha

This kit provides the wire to be run to the vehicle battery to power the lights on the trailer. Works will all ModuLite wiring harnesses and includes all of the connectors necessary to complete the installation of the ModuLite wiring harness.


Features:

  • Kit Includes:
    • (1) 10 amp Fuse
    • (1) Fuse Holder
    • (8) Cable Ties
    • (1) Ring Terminal 3/8"
    • (1) Ring Terminal 1/2"
    • (1) Wire, 12 ga. 20'
    • (1) Butt Connector


118151 Modulite Installation Wiring Kit




California residents: click here


Video of ModuLite Installation Wiring Kit

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Trailer Wiring Harness Installation - 2001 BMW X5

Today on this 2001 BMW X5 we are going to install part number 119190. We are also going to use part number 118151 and that is going to be the install kit. The first step is to get inside the vehicle because that is where the wiring harness is and basically what we are going to do next is remove the interior panel before we can get to the wiring itself. We are going to take out the two side panels. The first thing we are going to do is find a wire harness that actually goes directly into the tail light and there is a socket that goes into it so disconnect that, there is a little tab right in the middle. 00:35

The first thing we will do is test for the functions of the wire. We are going to do one circuit at a time. First off we will start with the running light circuit and we are going to test on the inside of the plug and we will see which color does what. It looks like it is going to be the gray and purple wire so we are going to take our running light wire from the modulite which will be brown and we are going to connect that to the wire. We will be using the quick splice to do that with and that will be part number 564. 01:05

We will move on to the next circuit. The left turn looks like a green and blue wire so the left turn for the module is going to be yellow and we will hook it up the same way we did before. Next we will look for the stop light wire. Off, on, off. It looks like the brake signal is going to be brown and black. Our stop light wire on the module is going to be red. Reinstall the wire harness back into the tail light and take the white wire and ground it to the body. Use a ring terminal to do that with. Next we will deal with the green wire and that is going to go to the right turn signal so take the green wire and route it over to the right side of the vehicle along the factory wire harness. We are looking at the passenger side and disconnect the tail light harness. Just like before we will test for the right turn signal. The right turn looks like the blue and brown wire. We can reinstall the wiring back into the tail light. Back over on the driver side of the vehicle we will hook up the black wire coming out of the modulite and basically we are going to take our wire from the 118151 kit and we are going to connect the two together and the black wire is going to be ran to the battery. Leave that wire alone for now and lets mount our module up somewhere inside the vehicle. There is a nice spot right here and they do not come with the kit but we will use a couple of cheap ones just to hold everything in place. 02:59

To get access to the battery we are going to have to remove the spare tire. Take this and roll it off to the side and now we have access to the battery. What we will do now is take the black power wire to see how much length we need to go down to the battery. We did not use much but we will cut off our excess and we will follow this a little bit like the green wire, that will be about right, and on the end of the black wire we will install the fuse holder. In one side we will add the ring terminal and the other side we will add the butt connector. Add this to the black wire and now take the ring terminal and we are going to add this to the positive side of the battery. Sneak the lead underneath the structure right here however I think we will put a notch right next to the plastic case because we will run the wires straight out that way we have easy access to the fuse if you ever change it. Now we are going to install the 15 amp fuse 118151 kit comes with a 10 amp fuse and that will be replaced with by this 15. We will take come zip ties now and zip tie the wires safe and out of the way. At this point we can reassemble the interior of the vehicle. To use the wire harness pull a little bit of it out and shut the door on it because the seal is thick enough where it will not hurt anything when you shut the lid. Just to make sure you stay away from the latch, pull out what you need to go out to your hitch. With that that will finish our install of part number 119190 and part number 118151.


Customer Reviews

ModuLite Installation Wiring Kit - 118151

Average Customer Rating:  4.8 out of 5 stars   (11 Customer Reviews)

This kit provides the wire to be run to the vehicle battery to power the lights on the trailer. Works will all ModuLite wiring harnesses and includes all of the connectors necessary to complete the installation of the ModuLite wiring harness.

- 118151
by:

very good responds to my issue thanks a lot 614235



- 118151
by:

Twenty feet of wire wasn't quite enough to make the entire run from the ModuLite to the battery in my 2000 Ford Econoline Van. It could have used another butt connector to attach the wire to the Modulite. These were very small problems as I had other wire and a connector on hand to complete the installation. Four stars for the product. Five stars for etrailer's website and expert advice online in the form of videos, descriptions for installation, and Q&A section! Thanks a lot! 523099


Comments
Wonderful! Trailer lights bright!
Young D - 06/17/2019

56721

- 118151
by:

Purchased this along with the Modulite 3wire / 2wire converter, it worked like a charm!!! Thanks for all your guidance in figuring out what we needed to get our new trailer with combined stop & turn lights to work with our new truck that had separate brake & turn signals. 461768



- 118151
by:

Worked well. 432188



- 118151
by:

Product Great Public relations Great Support Great Best regards, 369200


Comments
Great
Michael M - 04/18/2018

37365

- 118151
by:

Installed and works great! 226630



- 118151
by:

Superior products with EXCELLENT directions enclosed within each packaged unit ordered! Will definitely use this site for any related needs!! 146010



- 118151
by:

Quality part and fast service!! 95344



- 118151
by:

Having just bought a new Kia Soul with LED tail lights, I needed to be certain to get the correct products to properly wire my vehicle without damaging the electrical system. Local installers in my hometown were going to simply tap into the rear tail light wiring and go straight to the trailer lights. Thanks to you guys and your helpful videos, you advised me to use the #118151 Modulite Installation Wiring Kit in conjunction with with the #119176 Wiring Harness. By doing so, the power wire to operate the trailer lights comes directly from my vehicle battery, and alleviates and/or prevents possible damage to the tail light system of my car. I advise anyone to get in touch with the "EXPERTS" at etrailer.com for excellent advice and superior products to get the job done!!!! Thanks, Wayne Prospect, KY 71689



- 118151
by:

The product was just as advertised and it shipped overnight just as requested. Presently surprised by a company that not only has most of the products that they list on their website in stock but will also ship them as quickly as the customer may request them. 33613



- 118151
by:

Must have for converter I used this kit to run the power from the converter to the battery. It worked great and provides a 10 amp fuse... 3424


11
11

Ask the Experts about this Tekonsha Accessories and Parts

  • Parts Needed to Add a 7-Way and Brake Controller on a 2002 Ford E-350 Cutaway Ambulance
    A lot depends on what the factory 7-Way wiring is being used for. You may not want to tap into it if it is used for critical functions that might overload the circuitry in the event both are used at the same time. What I recommend is what you have suggested and adding a 4-Way to the tail lights, # 118344, provided the tail lights are the same on your cutaway as the regular E series van. If they are different then I recommend a powered converter, # 119147 and wiring kit # 118151. This...
    view full answer...
  • No Power to Trailer Brakes with Brake Pedal on a 2006 Chevy Silverado 2500HD
    I believe I know what is going on with your brake controller on your 2006 Chevy Silverado 2500HD. But first a note on brake controllers. Brake controllers are not vehicle specific. Some trucks do have an option to plug a brake controller in directly and the harnesses used are vehicle specific. But the brake controllers themselves are not. Your 2006 Chevy Silverado is a model that can have a brake controller plugged directly into it. I do not know which brand brake controller it is that...
    view full answer...
  • Activating Power to a Trailer Brake Controller on a 2001 Chevy Silverado 2500
    You are correct, there are some connections that will need to be made under the hood of your 2001 Chevy Silverado 2500 in order to make the brake controller and possibly the 7-Way trailer connector fully functional. We actually have a detailed FAQ article covering the connections that need to be made. I have included a link to the article for you to view. You will want to look at Step 2 - Under the Hood. Basically, you will remove the top cover of the power distribution box, the closest...
    view full answer...
  • Brake Controller Quit Working On 2005 GMC Sierra 2500HD
    I would check the power distribution box under the hood of your 2005 GMC Sierra 2500HD . The box is located under the hood and on the inside of the drivers side fender. Remove the cover, and locate the two auxiliary power posts on the inboard side of the box. The post closest to the rear of the vehicle should have a red wire attached to it. Next to this post in the fuse box there should be a green 30 amp fuse installed. If the fuse is not installed or is blown, or this red wire is not...
    view full answer...
  • Adding a 7-Way Trailer Connector and Brake Controller to a 2001 Chevy Silverado 1500
    For the 2001 Chevy Silverado with or without a factory 7-Way trailer connector, the wiring for the brake controller is present. However on some models there are additional connections that will need to be made under the hood to make everything fully functional. I have included a link to an FAQ article that explains these connections. If your truck does not have the factory installed 7-Way trailer connector you will need to add one using # HM40975. Or, if there is a round connector above...
    view full answer...
  • Trailer Lights Work, No Trailer Brakes And No Power At 7 Way Brake Pin Connector On 2001 Chevy 2500
    If your 7-Way is not factory installed then you will need to make sure the blue and red wires under the hood at the power distribution box are connected. The red wire has a ring terminal and goes to the closest positive post in the power distribution box with a 30 amp fuse installed in the fuse location nearest the positive post, for power to the brake controller. The blue wire has a plug on it that you will need to remove. You will need to run a length of Jacketed 2 Wire, 10 Gauge,...
    view full answer...
  • No Power On Electric Brake Output Pin on 2007 Chevy Silverado 7-Way Trailer Connector
    If your 2007 Chevy Silverado is the new body style then you will need to make sure that the blue brake controller wire is connected to the dark blue tow package wire. The tow package wire bundle is up under the dash and to the left of the steering column held together with a white tag. There also may be some connections that will need to be made under the hood. The help article I have linked will help with that. If your 2007 Silverado is a Classic (looks like a 2006) then instead...
    view full answer...
  • Is the Power Wire Needed for Custom Wiring on a 2011 Kia Sorento and is there a 5-Flat Adapter
    The wiring harness for your 2011 Kia Sorento is the Tekonsha Custom Fit Vehicle Wiring # 118506, and it includes the power wire you've asked about. It is necessary to install the power wire because the converter requires power directly from the battery in order to distribute that power to the harness and protect your vehicles sensitive wiring. This harness can be used with an adapter for your 5-flat trailer connector. You will need the Adapter 4 Pole to 5 Pole Trailer Wiring Adapter,...
    view full answer...
  • Troubleshooting Brake Controller that Doesnt work With Brake Pedal of 2003 GMC 2500HD Sierra
    This is a super common problem for GM trucks around the age of your 2003 GMC 2500HD Sierra. Check the third brake light fuse of the truck. This fuse blows very easily in your truck and when that circuit is dead it takes out the circuit needed to activate a brake controller with the brake pedal. An easy way to check this is to press the brake pedal and see if the brake light above the truck bed activates. If so, then this is the problem.
    view full answer...
  • Trailer Brake Controller Does Not Work with Brake Pedal on a 2001 Chevy Silverado
    When a brake controller works with the manual override but not with the brake pedal that indicates an issue on the red wire. Use a circuit tester like # 40376 and test the red wire. It should show power when you step on the brake pedal. If it does not then the first thing I would check is the position of the red wire in the connector that plugs into the truck. It should be positioned like in the picture I have provided. If it is in another location then move it to the proper location. If...
    view full answer...
  • Troubleshooting Trailer Stoplight Circuit Not Active on 2000 Chevy Silverado
    Check the third brake light fuse of your truck. Any time we see this issue on a GM truck with a similar year as your 2000 Silverado the problem is a blown third brake light fuse. Typically this is labeled as CHMSL.
    view full answer...
  • Troubleshooting Brake Controller that Only Works with Override Lever
    Is the brake controller a proportional brake controller? If so, then it is working fine and you should try testing it with a trailer. A proportional controller has to sense deceleration for it to activate trailer with the brake pedal. If it is a time-delayed controller it sounds like the brake controller itself isn't working properly based on what you described. Testing the brake controller is fairly easy. Sever the blue brake output wire near the brake controller leaving enough room...
    view full answer...
  • Installation of Auxillary Trailer Lighting On a 16 Foot Landscape Trailer, Behind a 2006 Ford F-150
    If you have installed a separate battery for the LED lights that you installed then you will need to use a inline fuse to protect the LED lights and battery from shorting out. I would recommend the Modulite Installation Wiring Kit, item # 118151, which has the inline fuse needed and wire for wiring the power to the lights. You will need to ground the trailer battery to the trailer frame and the lights can then be grounded to the trailer frame. I would use a 6 gauge or larger wire and...
    view full answer...
  • How to Wire up Trailer with Separate Turn Signals from Stoplights to Work With Vehicle with 4-Way
    Does your trailer have brake lights that are separate from the turn signals? If so you would need the converter part # RM-732 to split the signal up and allow your taillights to function properly. This would install on the trailer's wiring.
    view full answer...
  • Can a Charge Wire be Ran from a Motor Home to the Power Distribution Box on a 2007 Chevy HHR
    When wiring up a vehicle for flat towing if you are connecting a 12 volt power wire from the motor home trailer connector, that wire will need to go directly to the vehicle battery. To keep a maintenance charge on the battery I recommend using a harness such as # BX88206 with the tow bar wiring you will be using so that you can run a wire from the connector at the front of the truck to the vehicle battery. There are a couple of ways to do this. First, you can tap into the running light...
    view full answer...
  • Troubleshooting Brake Controller On 2001 Ford Expedition
    It sounds like you are having problems with the brake controller on your Expedition. You will want to check your owner's manual and locate all the fuses and relays labeled for Trailer Tow, and make sure they are all installed. You can use a circuit tester like part # 40376 and have someone use the manual override on the brake controller in the vehicle to make sure you have power to the pin on the vehicle 7-way. If you are using wiring harness, make sure that extra white ground wire...
    view full answer...
  • Troubleshooting the 12 Volt Power Circuit of a Factory 7-Way Connector on a 2009 Chevy Silverado
    It sounds like there is an issue with the battery charge wire circuit that connects to the fuse block under the hood of your 2009 Chevy Silverado. I attached a link below to a page that shows how these connections are made. It is also possible that the fuse is blown on this circuit too, you should check your vehicle owners manual to determine which fuses pertain to the 7-way at the rear of your vehicle.
    view full answer...
  • Installing 7-Way and Brake Controller on 2001 GMC Sierra
    First step would be to choose a brake controller. I recommend the Tekonsha Prodigy P2, part # 90885. You'll also need a 4 pole to 7-way adapter, part # 37185 and a brake controller install kit, part # ETBC7. The brake controller would install under the dash, to the right of the steering column. A brake controller wiring adapter # 3025-P would also be needed. I have linked you to a video that will walk you through the entire process from beginning to end, including what exactly to...
    view full answer...
  • Converter for 2018 Freightliner With Separate Lights
    The item that would work for you is the ModuLite Circuit Protected Vehicle Wiring Harness with Install Kit # 119190KIT. This kit has a converter that will adapt the 3-wire system on your 2018 Freightliner to work with the 2-wire system on your trailer. To make the installation easier I recommend using ModuLite Installation Wiring Kit # 118151. You would then be able to use adapter # 30717, plug the 4-way in and wire the remainder of the 7-way. I've added links to video reviews of these...
    view full answer...
  • Will Parking and Rear Hatch Sensors Work After Installing Draw-Tite Hitch Receiver on 2017 BMW X3
    When installing the Draw-Tite Trailer Hitch Receiver # 76226 on your 2017 BMW X3 the parking sensors will not be impacted. However, the hands free rear hatch feature could be impacted. It depends on the location of the sensor for the kick feature in your BMW. It's possible the sensor can be relocated so the hitch will not interfere. If you plan to tow a trailer with the X3 the wiring harness I recommend is the Tekonsha # 119190KIT. I've linked a video of the harness being installed...
    view full answer...
  • High Capacity Trailer Wiring Converter for Trailers with A Lot of Lights
    The highest rated converter box in terms of amperage capacity is # 119192. It is rated for 4.2 amps for brake and turn signal lights per side and 16 amps for running/tail lights. Since you are using LED lights though the power draw from those lights won't come close to the capacity of this system. This is a powered converter and it can be used on vehicles that have combined stop and turn signal lights. All you would do is ground the red wire with the white wire and use the green wire...
    view full answer...
  • Trailer Wiring Harness to Fit 2011 Porsche Cayenne
    We do not have a wiring harness that plugs directly into the wiring of a 2011 Porsche Cayenne. The # 118668 that you referenced is for the Volkswagen Touareg but hasn't been confirmed to fit the Cayenne despite their similarities. The harness that will work with your Cayenne is # 119179KIT. This will be hardwired into the Porsche. You can use the wiring kit # 118151 to help with the installation for running the wires to the vehicle's battery. I've linked videos of each product being...
    view full answer...
  • Recommended Trailer Wiring Harness for a 2012 Porsche Cayenne
    If you currently have no wiring at all on your 2012 Porsche Cayenne I recommend installing the # 119190KIT wiring harness. It's a 4-way trailer connector that hardwires into the Porsche's wiring. It has circuit protection to keep from damaging the wiring of the Cayenne. To make the insall easier add # 118151 which is the wire that runs to the Porsche's battery to supply the power. This way the power isn't drawn from the lighting system but rather directly from the battery.
    view full answer...
  • Trailer Wiring Harness Converters Keep Failing when Installed on a Semi Truck
    You mentioned that the truck is a semi truck. Does it run off of a 24 volt system? If so then that would be why you are having bad luck with converters. Trailer LED lights run off of 12 volts just like incandescent lights but LEDs draw much less amperage so that is the big difference between the two types. LED lights can run off of a lower voltage but often times they appear dimmer. We have a converter # 119192 that is rated for 4.2 amps for brake lights and turn signals and 16...
    view full answer...
  • Trailer Wiring Recommendation for a 2013 BMW X3
    Tow Ready has confirmed the part # 119190KIT as a fit for your 2013 BMW X3 so it would fit and work. But for an easier install you might like the ZCI kit part # 119250KIT. This system uses sensors to detect voltage in the wiring of your vehicle instead of having to tap into the wiring like the # 119190KIT does so there would be no splicing. You would also need the # 118151 as well to power the system. If I had your vehicle this would be the system I would use since it will be so much...
    view full answer...
  • 2016 Honda Civic Trailer Wiring Recommendation
    The Curt wiring harness part # C56496 is a universal, hardwire trailer wiring kit that will fit your 2016 Honda Civic EX-T. I have a better solution for you though. If you don't like the idea of splicing into your brand new vehicle's trailer wiring we offer the ZCI wiring harness part # 119250KIT that will simply clamp around the wires and can sense when there is power on them through wire insulation without having to penetrate it in any way. You will also need the power wire part...
    view full answer...
  • Trailer Wiring Harness to Add Trailer Connector to 2016 Toyota Land Cruiser
    To add a 4-way trailer connector on your 2016 Toyota Land Cruiser you're going to need to hardwire in part # 119190. This is a universal connector that will power your trailer's lights. If you need additional wire to connect to your vehicle's battery you can use # 118151. I've attached a video of both products being wired onto a BMW that will be the same basic process for you. If you'd like to add a 7-way connector, after you've installed the 4-way you can use part # ETBC7. This...
    view full answer...
  • Parts Needed to Add Trailer Wiring and a Brake Controller to a 1991 Dodge D350
    You could use the wiring harness, # 119192 and the wiring kit # 118151 on your 1991 Dodge D350. However, unless your trailer is drawing more than 7.5 amps for brakes/turn signals and/or 7.5 amps for running lights, you can just use the Tow Ready harness # 118317 and it will be much easier. But to add a brake controller as well, you will also need to add a 4 and 7 Way installation kit # ETBC7. Your brake controller will need to be hardwired into the truck. I have included some instruction...
    view full answer...
  • Trailer Lights Not Working After Install Wiring Harness on a 2014 Kia Sorento
    To determine if the problem is with the vehicle or the trailer, first disconnect the trailer from the vehicle. Then use a circuit tester like # 40376 or the one that came with # 119147KIT. Test the pins on the 4-Way using the circuit tester while someone sites in the vehicle and runs through the functions. If all the signals are correct on the 4-Way when you test it then the issue is on the trailer. But if the signals are not correct then there is a problem with either the wiring harness,...
    view full answer...
  • Trailer Lights Not Working Using Curt 55367 on a 2000 Toyota Tundra
    If nothing is working then I would first check to see if any tow package fuses or relays are missing or blown. Use the owners manual to find all fuse/relay locations. If that is not the issue then it sounds like the previous owner has done a number on the original set up and you may have to have Toyota replace some of the factory tow package parts. Regarding the under hood connection, it might already be set up from the factory (but the fuse associated with the battery feed could be...
    view full answer...

Do you have a question about this Accessories and Part?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Video Edited:
Zack K
Video Edited:
Joshua S
Video Edited:
Jacob T
Video by:
Andrew K
Video by:
Dustin K
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Test Fit:
Nicholas E
Test Fit:
David F
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Alexander C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.