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Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with Installation Kit

Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with Installation Kit

Item # 119190KIT
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Tekonsha Plug and Lead Wiring - 119190KIT
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Tekonsha wiring for your 2019 Mercedes-Benz GLC are available from etrailer.com. Installation instructions and reviews for your Mercedes-Benz wiring. Expert service, and cheapest wiring price guarantee. etrailer.com carries a complete line of Tekonsha products. Order your Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with Installation Kit part number 119190KIT online at etrailer.com or call 800-298-8924 for expert service.
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Tekonsha Wiring - 119190KIT

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • Plug and Lead
  • Tekonsha

This ModuLite harness offers peace of mind by including circuit protection to safeguard itself and the tow vehicle from harmful electrical shorts and mis-wire situations. The upgrade also includes the ability to work with PWM on vehicles.


Features:

  • Short circuit protection safeguards itself and the tow vehicle against harmful electrical shorts and mis-wire situations
    • Automatically self-resets
  • Virtually eliminates draw on the vehicle's tail light circuit
  • Tail light circuit has been upgraded to work with vehicles using Pulse Width Modulation (PWM), allowing converter to fully turn on, giving trailer lights full brightness during activation
  • Powers the trailer's stop, turn, tail and running lights directly from the tow vehicle's battery
  • Unit prevents feedback from trailer to vehicle system
  • May be used on 2- and 3-wire systems
    • When used on 2-wire systems, brake wire on harness must be grounded
    • Adapts a 3-wire system on the towing vehicle to work with a 2-wire system on the trailer
  • Will work on vehicles and trailers with either LED, incandescent, or standard bulb tail lights
  • Works with most multiplex wiring systems
  • Install kit (118151) is included to help run wire to vehicle battery


Warning: Overloading circuits can cause fires. Do not exceed:

  • Maximum stop/turn light: 4.2 amps per circuit
  • Maximum tail lights: 7.5 amps

Read vehicle's owners manual and instruction sheet for additional information.



119190KIT Upgraded Heavy Duty Modulite Circuit Protected Vehicle Wiring Harness with Install Kit

Installation Details 119190KIT Installation instructions


Customer Reviews

Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with Installation Kit - 119190KIT

Average Customer Rating:  4.7 out of 5 stars   (276 Customer Reviews)

This ModuLite harness offers peace of mind by including circuit protection to safeguard itself and the tow vehicle from harmful electrical shorts and mis-wire situations. The upgrade also includes the ability to work with PWM on vehicles.

- 119190KIT
by:

This wiring kit works great! However the wires were just a tad too short so I had to add extra wire and there were no instructions to be found anywhere on how to wire this up. I used the insctruction video for the Jetta and figured out which wires I needed (but my install was a 2 wire setup not a 3 wire) it took me 4 hours to install but it does work perfectly so it's hard for me to be too upset over the wiring. 108359



- 119190KIT
by:

thanks for being so helpful in switching us into this heavy duty wiring harness. The service was better than all face to face places in this type of business. My installer swapped out the modules and everything worked perfectly. I can't say enough about both customer service and the tech support that we received. There should really be a sixth star (for above and beyond)! 268702


Comments
Works great... thanks.
Doug L - 01/16/2018

33174

- 119190KIT
by:

The product works great. The worst thing about it was that there were no instructions with it at all. I had to email etrailer and they in turn emailed me the instructions. Other that that no problems. Fast shipping and product is as advertised. I used this product on my Victory Vision so that I could pull my trailer. Below is a picture of where I placed it. It worked out best in my opinion to velcro it to the back of the saddle bag. It actually mounted right under the wiring harness of the bike that I had to tie into. 85345


Comments
Still works great. No problems at all.
Damon C - 12/18/2014

8094

- 119190KIT
by:

I installed this 119190KIT into my 2015 Toyota Prius Plug-In Hybrid. I could find no review that addressed installing into a Plug-in Prius Hybrid. There were several reviews of various years of standard (non-Plug-In) Praises, but no reviews for a Plug-In. The eTrailer webpage video for 119190KIT (https://www.etrailer.com/Custom-Fit-Vehicle-Wiring/Tow-Ready/119190KIT.html) has links to 4 other videos, none of which is for a Plug-In Prius (PIP), but one or more of them shows how to test and splice wires just like in the 119190kit. The video for the 2013 BMW X3 shows how to use the tester at the 2:48 mark. This tester was essential. I used it to determine which lights were connected to which wires. Do NOT rely on any videos to determine which color wire connects to which light (tail, brake, left turn, right turn). Instead, follow EXACTLY what the instructions sheet tells you. The first step was to determine which color wires in my PIP connected to which lights in the PIP’s rear tail area. When you use the tester, you MUST push the metal pointed tip directly and forcefully into the center of the plastic sheet encasing the wire. If you do not penetrate fully, you won’t get the tester’s light to come on when you press the car’s brake pedal or light switch or turn signal lever. A video that shows the internal compartments for a Prius is at this link: https://www.etrailer.com/tv-install-trailer-wiring-2010-toyota-prius-118505.aspx It's not a Plug-In model, but it shows a lot of spots that are identical nonetheless. I found that there was not a lot of slack in the wires in the PIP’s taillight assembly, but there was enough. The video below shows a 2010 Prius and how to remove the rubber seal - at about time stamp 0:30+. A good spot to screw the ground into the "doubled sheet metal" is at 2:03+. A good segment to show putting the wires under the back side of the hatch starts at about 3:00 and runs until about 3:22+ and also at 3:30 it shows how/where the banded 4-pole wire will go into a lower compartment, to be stored until need to attach to a trailer. 3:53 - 4:41 shows running wire over to the other taillight. From 5:10 to 6:20, it shows hooking up to the battery. https://www.etrailer.com/tv-install-trailer-wiring-2010-toyota-prius-c56147.aspx This video shows a 2014 Prius V.... https://www.etrailer.com/tv-install-trailer-wiring-2014-toyota-prius-v-118610.aspx It shows the actual part that I have to connect - 118151 which includes the yellow "circle" wire.  Go to time 5:00.  It shows the yellow loop (aka, fuseholder) in the kit and how to install it at around time 5:42+ thru 6:23 and beyond shows attaching the yellow to the positve battery pole at around 6:40 to 7:00.  Shows adding fuse to fuseholder at 7:13+. At 7:30, starts to show attaching the ground wire to the "factory ground.  Through and past 9:20 shows zip-tying all wires. Here's another video that shows splicing…..with the kit’s “no-splice” connector. https://www.etrailer.com/tv-install-trailer-wiring-2013-toyota-prius-119147kit.aspx ....at 3:30 to  about 5:13. WARNING - you must use pliers as shown to connect two wires that the directions say to connect. You have to squeeze the pliers pretty hard to get the metal piece in the plastic quick-splice connector to go all the way through the plastic sheathing and then make contact with. The video does not emphasize that you have to squeeze the metal piece pretty hard. In fact, when I first used four quick-splicers for connecting and then tested to see if a connection was made, only one of the 4 quick-splice connectors resulted in an electrical connection. So, I had to open up the 3 connectors and press the metal piece inside the quick-splice connector real hard. So, be careful!! I have a moderate degree of experience with home electrical wiring, but none with car wiring. I just took my time and it all worked great!!! 274346


Comments
This wiring is still working perfectly after one year! Very satisfied.
Fred Y - 07/20/2017

26381

- 119190KIT
by:

I ordered a trailer wiring kit. The etrailier website was easy to navigate and I easily found the item I needed. The wiring kit arrived within a reasonable time. I used the installation video on the etrailer website, which made the install very easy. I recently installed the wiring kit, so I have only used it a few times but so far so good!! 587969



- 119190KIT
by:

Overall Kit is good. Some of the wires on the kit need to be longer by about 12 inches as it results in having adequate length to trim. Also the kit should include butt splice connectors instead of the blue crimp (no strip connectors). These type do not work as the OEM wire is to small to work effectively with this style of connector. The power connector eyelets are too big for the battery terminals. Overall good kit. Make the changes and this would be an excellent kit. 607592


Comments
This is not a vehicle-specific kit that will work right out of the box with most vehicles. However as you found, there will be a little necessary modification on some vehicles.
-- Mike L - 02/25/2019

49866
Comments
Working great.
Fife E - 02/27/2020

70447

- 119190KIT
by:

I would have rated this better if good installation instructions were provided for my car model. If you're going to connect the 119190/119191 kit to a 2012 VW Golf, like mine, you will find that the correct wiring is from the ModuLite catalog Vehicle Code BM-1 3-Wire System (such as Mercedes R-class) - NOT the B 3-Wire System as listed in the ModuLite catalog. My VW Golf uses the same bulbs for taillights (providing 6 volts) and brake lights (providing 12volts). To make the converter work correctly, ground the brown "tail light" wire and connect the red "stop" wire to the VW wire that lights the tail light. In the three pin taillight connector (right or left side of the car) the middle wire is a ground, one outside wire is the turn signal and the opposite outside wire is the tail/brake light. Connect the red wire to the wire that is NOT the turn signal. If you follow the ModuLite B 3-wire suggestion and connect the red wire to ground and the brown wire to the VW tail light wire, the turn signals and brake lights seem to work correctly during the day (when you don't have the taillights on) but when you turn on the taillights, you don't get brake lights when you apply the brakes. 152555


Comments
Great review. Thanks! I also have a 2012 Golf TDI and followed your instructions. This saved me a ton of time since I literally did exactly what you stated and it worked out great. Thanks again.
-- comment by: Kamil - 02/07/2015

9355

- 119190KIT
by:

This kit was great and functions exactly as intended. With the help of the online video it was easy to install, even for people without any electrical knowledge. My only advice is: 1) watch the video and the hitch installation video at the same time. This will help you plan ahead and not re-install parts during the hitch installation, that will need to be removed for the harness installation 2) be VERY careful about selecting the right wires, by using the testing tool eTrailer provides. In the install video for my BMW X5, the technician referenced a yellow and black wire when making the initial connection. He later goes on to make a separate connection for a black and yellow wire. To the novice they look nearly identical. I confused the two wires and had to re-do this, but would not have been an issue if I had understood the distinction and used the testing tool, as recommended in the instructions 3) be careful about placing all connectors so that they face in the same direction. Does not impact function, but makes for a neater install when complete. I could not be happier about how this project turned out, and credit etrailer with all of the success. It has a very OEM look, and etrailer made the entire project doable for me through their great suite of videos and excellent Customer service. I wish every retailer could be this good! 636884



- 119190KIT
by:

The video for this installation on a 2012 Q5 was excellent. A couple of point to add. For fishing wire, a small piece of ice maker water line works great if you cant find or don't know what aircraft tubing is. Mounting the unit in the area shown with adhesive tape on is not the easiest. I would suggest removing the panel to get a proper place to mount this correctly. The door hinge has a plastic cover that is already hiding a wiring run. If you remove this, which is easy, you can run the wire with this, cover it back up, and its completely hidden. I would suggest soldering wire to wire splices rather then butt connectors. The T connectors are still the simplest and cleanest way to splice into existing wiring. 294493



- 119190KIT
by:

Install on 2018 Mercedes Benz CLA250 w/LED tail lights: There were no guides I could find so I'm posting this for other etrailer customers. These are my installation notes and the kit operates correctly. There are other ways to do this, I'm sure. It isn't necessary to remove the tail lights, there is a removable piece in the trunk carpet. I removed that and the plastic trim panel in the middle. The tail lights have 10-pin connectors. On the left there are 8 wires on the right there are 7. My thought is maybe this has something to do with the european style parking lights. After probing I found this: Left Side: Turn/Brake - Yellow with White stripe Running/headlights - Black with Orange stripe There is constant power to the Green with White stripe Right Side: Turn/Brake - Light Blue with Red There is constant power to the Green with White stripe I had to splice additional wire to mount the module where I wanted it. The final connections were: Module Brown to Left Black/Orange Module Yellow to Left Yellow/White Module Green to Right Light Blue/Red Module White to Ground Module Black to Battery Module Red Terminated (unused) The positive electrical connection I made was under the hood, off the fuse box. Terminated to one of the lugs, covered with wire loom, and run into one of the cars wire bunches. The 4-wire hitch output is terminated with a CURT tester (If you put one there, you'll always know where it is when you need to troubleshoot something) This vehicle is completely covered on the bottom and running the wire can be very time consuming if you want it to look tidy. 560841



- 119190KIT
by:

I had more problem with this installation, but it had nothing to do with the kit. Just the installer (me!). I think the kit is well made and the video instruction is invaluable. I put it on my iPad and took it to the car. I referred to it many, many times. I would suggest that you watch the video all the way through and make a note of the supplies and tools you will need. I had to make a couple trips out to buy various items. But I'm glad I did it myself just so I know more about my vehicle. I also want to say that the folks at eTrailer have a great website and lots of help for installation. I highly recommend them. 556837



- 119190KIT
by:

A module such as this is absolutely essential when trying to add a trailer lighting circuit to a modern CANbus equipped vehicle. The module itself works beautifully but I deviated from the eTrailer install video for my '13 Jetta Wagon. First, I used the 'poke-n-wrap' method with solder to attach the module's signaling wires to the vehicle wiring harness. I have a personal aversion to Scotchlok or vamp connections because they often fail with time and vibration. This method keeps the harness relatively compact and clean looking, especially if you resecure everything with cloth wiring harness tape. Second, no self drilling screws. I attached the module to the chassis with proper self adhesive tape like 3M VHB. The white ground wire is easily attached to the existing grounding lug on the left rear wheel well, so no self drilling screw there either. Don't poke holes in your chassis with self drilling screws if you can avoid it. I avoided drilling a hole in the spare tire well by running the power wire through the existing body plug in the area aft of the right rear wheel well. It's easy to remove the plug, drill a hole in it, and thread the wire through. Add a dab of black RTV to make sure it's watertight. When powering the module, the suggested method is to split the 1/4" ring terminal and stuff it under the nut that holds the positive battery terminal in place. Instead, I obtained an M6x1.25 nut and secured the fuse holder to a unused, unfused stud on the terminal block inside the underhood fuse block. When it's time to change the car's battery, the split ring will inevitably get deformed and may cause problems. This way, the positive terminal clamp only has to do one thing: hold onto the positive terminal. To bring the wiring harness outside the wagon I went a little off the deep end with a little sheet metal work and Molex MX150 connectors to make the passthrough watertight. I added etrailer 18140 and 18144 to mount the 4-way connector to the hitch so I wouldn't have to fish the wire out of the left-side trunk compartment and shut the tailgate on it every time I wanted to tow. 469706



- 119190KIT
by:

FAST DELIVERY OF ITEM ORDERED 911560



- 119190KIT
by:

Easy installation, good instructions. Worked well when I used it. 908096



- 119190KIT
by:

Having done trailer light wiring on cars for years, this wasn't difficult at all. It's not as simple as some of the newer options for other vehicles we've owned, but certainly doable by anyone with any experience, and the directions are easy enough to follow. 906841



- 119190KIT
by: 10/27/2020

Great fit for the trailer. Easy to inst all. 904696



- 119190KIT
by:

I installed this kit on a 2011 Mercedes GLK 350 and it was simple. Steve at etrailer was of great help selecting the best kit and it was delivered exactly as described. 5 star experience! 884216



- 119190KIT
by:

All came together. Easy instructions. Easy to install. Great value and price! 873602



- 119190KIT
by:

I purchased this harness for my 2014 BMW X1 along with a Draw-tite Trailer Hitch. I paid the local BMW dealer to install them both. For the first trip the electrical connections worked perfectly. On our second long trip, we noticed that the left lights on our trailer were constantly 'ON' and the left turn signal did not work. When we turn the vehicle entirely off, the left taillights are still on as they appear to be drawing power. Has the 'module' gone bad on its second trip? 815123


Comments
Thank you for your review. It does sound like you have a common ground issue. I recommend to make sure the ground wire is attached to a bare metal surface of the vehicle. Please let me know if that fixes the issue.
-- Heather A - 06/19/2020

81361

- 119190KIT
by:

Product was delivered promptly. It was easy to install and has worked properly. I would gladly order from etrailer again!! 796416



- 119190KIT
by:

Easy to install, looks great. 795605



- 119190KIT
by:

Excellent fit for 2013 Porsche caynne. No problem at all shipping time was un beatable I would recommend it for any one for the same type of cars or similar. Thankyou Etrailer company. Khalid 794080



- 119190KIT
by:

The only negatives are the fasteners that come with kit--they failed after just one year--the mechanic mentioned that my left turn sig. on suv was not working from harness out to trailer--he found that the fasteners failed--they tend to make weak and non-durable connections. 792509



- 119190KIT
by:

Excellent product. The shop had no issues what so ever installing it. Works great! 787125



- 119190KIT
by:

Instructions were easy to follow with great videos online to help. 786900


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    There isn't a custom fit for your 2008 Toyota Land Cruiser. I reached out to my contact and Tekonsha and we recommend the Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with Install Kit # 119190KIT. This will be a hardwired system that will easily connect using the quick splice connectors and will also protect your vehicle from electrical overload. He said there was no custom harness before they stopped looking at this vehicle in 2007. Now with a Modulite, they...
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  • Parts Needed to Install an Electric Brake Controller on a 2017 BMW X5
    I can help you find what you need to get it installed but there isn't a direct plug-in wiring adapter for the Prodigy P2 # 90885 that's confirmed to fit your 2017 BMW X5. You can install a 4-way trailer connector on the back of your X5. Use # 119190KIT for this. It needs to be hardwired into the BMW's wiring. Then use our # ETBC7 kit to convert the 4-way to a 7-way. This kit also includes everything you need to install the P2. However, finding the wiring under the dash for the...
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  • Trailer Wiring Harness for a 2013 Mercedes E-Class Wagon
    I think you hit the nail on the head when you said they don't want to support towing with the E-Class Mercedes in the USA. That happens a lot. But there is a possible solution that would work even better than wiring harness # 119190KIT. Take a look at # 119250KIT. This harness does not require splicing into the vehicle wiring for installation. If you don't have a circuit tester or a multimeter to test the vehicle tail light wiring I recommend # 40376. Use the tester to determine the...
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  • Trailer Wiring Install Video for 2006 BMW X5
    We actually had the chance to shoot an install video for the wiring harness part # 119190KIT in a 2008 BMW X5 similar to your 2006 and I attached it below. It will walk you through the entire process and show you which wires to attach to which circuits.
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  • Trailer Wiring Harness Recommendation for a 2014 BMW X3
    I have a trailer wiring harness that will work for your 2014 BMW X3, but according to Curt, the Upgraded Circuit Protected Tail Light Wiring Harness, # C59496, has not been tested on the 2014 model yet. The harness that I recommend is the Tow Ready Heavy-Duty Modulite Wiring Harness, # 119190KIT. I spoke with my contact at Tow Ready and he confirmed that this harness will work. We have installed this harness on a 2013 BMW X3, so I attached the installation video. The installation will...
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  • Stoplight Circuit LocationOption for Installing Brake Controller on 2006 BMW X5
    Sounds like you are looking for a way to isolate the stoplight circuit for the installation of a brake controller in your vehicle. The part # 118158 when wired to your trailer wiring # 119190KIT can give you an isolated brake signal if you can't find it at the pedal. Or if there is wiring at the stoplight switch on the brake pedal of the truck you can test the wires that lead to it with a circuit tester like part # PTW2993 to find the circuit that only sees voltage when the brakes are...
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  • Trailer Wiring Harness for a 2013 Mercedes GLK350
    For 2013 there were 8 versions of the Mercedes GLK. Diesel motors were available on the 200, 220, 250, and 350. Trailer wiring harness # 119190KIT is a universal type of item though and should work just fine on your 2013 GLK350 even though it is not officially listed as a fit.
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  • Recommended Trailer Wiring Harness For 2013 Mercedes-Benz GLK250
    We have a couple of different style wiring kits for your 2013 GLK250, but the # C56190 is not compatible with your car. Most of the harnesses we offer are a hardwire like part # 119190KIT. This kit comes with a circuit tester that helps you identify the wires you need to splice into for the trailer harness. I have attached a link to an installation video you can check out. Another harness we offer requires less hardwiring. It is the ZCI Circuit Protected Vehicle Wiring Harness, part...
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  • Parts Needed to Install Brake Controller in a 2016 Freightliner M2 Business Class
    You will need to start with a 4-way. For that you would want the # 119190KIT. This will be the base of the wiring setup to control the lighting of the trailer you plan to tow. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. Due to the length of your vehicle you'll...
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