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7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

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7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs 5 Flat,4 Flat TR20141
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Tow Ready 7-way connector to 5-way or 4-way flat connector is designed for use on vehicles with Trailer Lamp-Out sensors when towing a trailer equipped with LED lights. Lowest Prices for the best wiring from Tow Ready. 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs part number TR20141 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Tow Ready Wiring

  • Wiring Adapters
  • Multi-Function Adapter
  • 5 Flat
  • 4 Flat
  • Plug Only
  • Tow Ready
  • 7 Blade

Tow Ready 7-way connector to 5-way or 4-way flat connector is designed for use on vehicles with Trailer Lamp-Out sensors when towing a trailer equipped with LED lights.


Features:

  • 7-Way RV style adapter to 5-pole and 4-pole flat trailer connectors
  • Designed for use on vehicles with Trailer Lamp-Out sensors - such as Audi, Mercedes-Benz, Porshe, and Volkswagen vehicles with the factory tow package
  • Plugs into a 7-way connector on the vehicle and 5-way or 4-way flat connector on the trailer
  • 1-Year limited warranty


20141 Tow Ready 7-Way to 5-Flat and 4-Way Trailer Adapter for VW, Audi, Porshe, and Mercedes-Benz Towing Trailers with LED Lights

Replaces V39008

Item # TR20141




California residents: click here


Video of 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

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




Video Transcript for Tow Ready 7-Way to 5-Way/4-Way Trailer Adapter Review

Randy: Hey, guys. It's Randy here at etrailer.com. We often get questions from our customers about how they can get their seven pole on their vehicle to work with different types of trailers.What we're looking at here is a four and five-pole adapter, so this is going to allow you to use the standard four-pole plug that you're going to find on most utility trailers. This is going to have your ground, running lights, left turn and brake signal, and right turn and brake signal. You can also see we've got our fifth pole here. It looks a little bit different than a standard four-pole adapter.

This allows us to send a reverse light signal through this plug back to our trailer. In most applications, that's going to be used on marine trailers for the lockout circuit on surge brakes, but it can also to used to power backup lights on your trailer. So you've kind of got options there.Additionally to those things, helping it work for multiple trailers, it also has resistors that have been built in. On some vehicles, especially European vehicles that we see, when they have a factory seven-pole on them, if your trailer has LED lights, that causes a fast blink inside your car, and it causes a light out or a lamp out light to come on. With those resistors being built in, it's going to cause your vehicle to think that your trailer has incandescent lights on it.

LED lights are becoming very, very popular. They last a lot longer, and a lot of customers are switching over to them. So having this handy in the event that maybe you usually haul an incandescent trailer, but then borrow a trailer that has LEDs, that's going to stop that fast flash or that lamp out signal coming through.As far as the installation process, it's going to be just like a normal seven pole. The tab here on top is going to go right behind the tab that's on our cover. So this slides in till it stops.

The top comes down. We always want to confirm that is in behind that tab on the cover. At that point, we're ready to pull again either our four or five-pole trailer. Just like that.Now, one thing I've noticed in messing with this, is that when we pull out our trailer connector, you see how that middle part wiggles just a little bit Now, this has a lot of good customer reviews. No customers have mentioned any issues with that or anything.

But you can see it moves in just a little bit, and it comes out just a little bit. Just wanted you to be aware of it, so you didn't think yours might be messed up or something when you get it.Now as far as if it would be something that I would own, I definitely like it. I think it is a good product, especially if you have one of those vehicles where that lighting system has that lamp out monitor. I think it's going to save you a lot of headache. It's going to work on any vehicle, even if it doesn't have that situation, but it's going to help in those events that it does. I like having all five poles there, so if you ever pull somebody's marine trailer or you already have a marine trailer, you're not going to have to worry about the lockout signal. Overall, it's good quality. It feels good. There's not a cover that comes with it to cover the poles, so when not in use. Some of the adapters are going to have covers that'll go over them, keep them protected. This one does not. So this isn't something that I would leave on the back of my vehicle. This would be something I would have in there when I needed it, I would take out when I didn't.One thing to help extend the life of it, dielectric grease is critically important. Some people use it, some people don't. The people that use it really see the benefit from it. Basically, by adding grease to our terminals on both sides, we prevent moisture from getting in there, which kind of absorbs dirt. Once we've got wet dirt sitting in there, corrosion is going to be an issue.Just like most adapters out there, to help resist corrosion further, all of our connectors are going to have a nickel coating on it. That's just going to help to alleviate any of that corrosion issue, at least much better than brass does. But again, dielectric grease is a really good option.


Customer Reviews

7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs - TR20141

Average Customer Rating:  4.9 out of 5 stars   (229 Customer Reviews)

Tow Ready 7-way connector to 5-way or 4-way flat connector is designed for use on vehicles with Trailer Lamp-Out sensors when towing a trailer equipped with LED lights.

- TR20141
by:

Awesome plugged it in to my 2012 gl450 and everything worked. Fast and easy thanks 674723


Comments
Still working
Don - 07/25/2020

95237

- TR20141
by:

Product solve a problem for me. Adapting a 7 pole to a flat 4 pole on a Mercedes GLE 350. Works very well so far. I had a real problem until I did research with etrailer and found out why my adapter from a Chevy Tahoe would not work. Thanks etrailer! 711071



- TR20141
by:

Works great and as expected. 659953



- TR20141
by:

Great product! I got a new boat this year with LEDs on the trailer. I couldn't figure out why the trailer lights wouldn't work with my 2012 MB GL450. I even went to the MB dealer and the parts guy was unaware of the issue. This adapter also works with my other trailer with incandescent lights. 230668


Comments
Works great. Thank you
SeaWags - 11/01/2016

21702

- TR20141
by:

Before this device, my MB GL450 towed with hesitation, not at all like I was expecting. Plus I had running lights but NO 1. blinkers on back of trailer 2. no brake lights on back of trailer and of course, that means I was a highway hazard of the worst kind. This device plugged in gave me better towing as my GL 450 recognized there was a trailer behind it, full blinkers, full brake lights. I am thrilled to be driving safely for myself, my family, and those around me! 678355



- TR20141
by:

Kyle S in Customer Service chased down the issue I was having with hyperflash on my BMW X5 and identified the correct fix to get the problem resolved. I purchased and installed the TR20141 adapter and POOF, the problem went away. I spent countless hours on the phone with numerous trailer repair service providers located in my vicinity and when I told them about the problem they all ran away from me as fast as they could. Kyle S nailed it, product works like a charm. Thanks Kyle S! 697336



- TR20141
by:

Benz GL450 I was having problems with lights flashing and car not recognizing was trailering. This adapter did the job perfectly as advertised and was delivered quickly. 691876



- TR20141
by:

Outstanding Product! Well made. 436868


Comments
No issues with Adaptor. The only issue is with the Mercedes GL550 monitoring system still at times shows a left turn signal out when connected to the LED trailer lights. When disconnected, the light goes off. Read on other forums that this happens with this particular vehicle. As far as the trailer lights working when connected, they do work fine.
Philip C - 09/27/2018

44078

- TR20141
by:

Simple solution to an annoying problems - my trailer had LED lights and the turn signals would blink ultra-fast; also, my tow vehicle - 2007 VW Touareg - would constantly tell me the trailer lights were not working properly. My trailer had a flat 4-pin connector and the vehicle had both flat-4 and round 7-pin connectors. I plugged the adapter into the vehicle and the trailer into the adapter and everything worked perfectly. The only alteration I had to make was a simple cut in my trailer's flat-4 connector so it would slide onto the adapter (the adapter is setup for either a 4-pin or 5-pin but the 4th pin on your 4-pin connector must be exposed to fit - a simple cut with a utility knife removed the end on the trailer connector). 183251



- TR20141
by:

This is an amazing product. I purchased a new aluminum trailer and thought everything would be fine. LED lights, all the bells and whistles. I have a 2011 GL450 Mercedes SUV with a factory towing package Twin turbos and I thought I was set. When I picked up the trailer I found that not one light on the new trailer worked properly. I checked out the plug with a tester and the trailer light and the readings all looked good. They just would not work together. We goggled the problem and etrailers sight came up and had posts of others having similar problems. This new converter that etrailers sells is amazing. No problems now! 681308



- TR20141
by:

After 1 year, still works great! 721000



- TR20141
by:

Called etrailer told them what I needed and said i thought a particular product would be right. They suggested another product as a better choice. I ordered what they suggested and it arrived sooner than promised. Hooked the trailer up using the adapter and everything worked great. Very satisfied. I highly recommend them. 151189


Comments
Product works fine. No complaints
Craig I - 09/15/2015

14992

- TR20141
by:

Wast of money, stops blinking temporarily, until your fuses blow......does not solve led problem when hooked up to range rover, bo 37238


Comments
I have a 2001 BMW E53 X5 with the factory tow package. It has a 7 blade round connecotr, however my tailer for the jetski and jet boat both have the 4 flat connector. None of the trailers have LED at the moment and I doubt that I will ever convert them to LED. I need an adapter connector so that I can connect the trailer lights to the BMW connector.
-- comment by: Don M - 05/19/2013

1519

Something like PK12716 should fit the bill just fine.

-- Patrick B - 5/20/2013


- TR20141
by:

It wasn't the right connector so I really don't have a review of how the product was, but it got to me in a few days so the service was great. 651316



- TR20141
by:

Product arrived promptly and is exactly as described. On my 2009 Mercedes ML550 this is REQUIRED if you want to rent any trailers with LED lights at U-Haul. Beware the dimwits at U-Haul as they have NO CLUE what they are doing. eTrailer.Com has this priced at HALF what U-Haul charges, and they don't even know Mercedes cars need them! 137343


Comments
PERFECT. I switched my glider trailer to LED lights, the U-Haul adapter doesnt work, this works perfectly! I even got the wiring right the first time, played Lotto, didnt win squat. :
Juan J - 06/24/2015

12750

- TR20141
by:

I have a 2012 Mercedes GL550. Using the standard 7/4 adapter the trailer lights would flash, cancel the blind spot sensors and trip the bulb monitor. After researching this the problem lies all over the place and not with one model either. The blind spot mirror issue is in the owners manual but not trailering section. Using this adapter it stops the flashing trailer lights but the trailer lamp out persists on the dash. This problem is inherent to many late model German automobiles on a hit and miss basis. VW, BMW, Mercedes and Porsche. On my 2011 GL450 this problem was not present, but on my 2012 GL550 it is. Mercedes was on no help at least my servicing dealer was of no help. The selling dealer said he knew of the problem but recommended a trailer shop for further help. The trailer shop says it's the vehicle and not the trailer as they sell to these customers all the time. I've not seen too many of these buyers pulling trailers! They suggested installing resistors in the trailer wiring. I'm not inclined to doing so. The trailer works great on my other two vehicles. The Benz is what the problem is! But like everything in Benz fashion. I'll be dead and gone before they even care there's a problem! 214690



- TR20141
by:

I give the product an A++ and I give etrailer.com A++. Great product from a great company. I am not the owner's cousin or a friend of someone who works there - I am a very satisfied customer. When I need to purchase something, I want to purchase with confidence. etrailer, you are awesome and I feel so good about my experience, I feel like it's my duty to let others know. Here's the final version of my story (you can get my full inquiry and answered question here https://www.etrailer.com/question-322654.html): I put LED tail lights on my 14' Lund Adventure fishing boat trailer. The old incandescent lights burned out when they get wet - not a good feature on a boat trailer that needs to be backed into water to launch the boat... I decided that waterproof sealed LED lights were the best option because the bulbs won't get wet (duh), are brighter than incandescent bulbs, and will last for a long time which means less time messing with trailer lights and more time taking the kids fishing. Here's the rub: LED lights don't draw enough power from my 2011 Mercedes Benz GL350 electrical system for the SUV to even recognize that a trailer is plugged in. The Mercedes needs to detect a load on the electrical system in order for it to send adequate power to the trailer. LED lights simply don't draw enough juice for it to work. When I initially plugged in the LED lights, they lit up - but just barely. The brake lights and turn indicators didn't work. The running lights seemed to work but they were very dim. After figuring out what was going on, I determined that the LED lights were operating on the test current running through the system (testing for bulb faults as a safety feature on the vehicle) but didn't draw enough for the car to detect the trailer. I sent a message to etrailer.com and got a terrific response. To verify what was going on, an electronic wizard friend came over with his test gear and tested the system and everything looked like it was working - yet it still didn't work. He connected up a 25W resistor in the system at the trailer harness (he could have put it anywhere in the system) and it fooled the SUV into thinking that an incandescent bulb (higher wattage than LEDs) was drawing on the system. Everything worked - but I didn't want to have a resistor duct taped to the top of the trailer. I ended up adding a new ground wire to each rear LED light because I knew that if I didn't deal with the issue now, I would be dealing with it later because the only thing keeping the lights grounded were thin strands of 22 gauge wire bolted to the trailer frame. Adding a ground wire individually to each tail light took 15 minutes and was well worth the extra work because now everything meaningful was sealed and was less likely to rot after repeated trips to the salt water to fish. I ordered the TR20141 and received it in 6 days (sent UPS Ground). This 7-pin to 4/5-pin adapter (I only use 4 of the 5 pins) has built in resistors to fool my SUV into thinking incandescent lighting is connected thus drawing enough power to allow my Merc to detect the trailer. I removed my old resistor, reconnected the wiring as it was before (now with my extra 2 ground wires), plugged in the TR20141 and P R E S T O - it works awesome!! It was an inexpensive solution and works perfectly. As a side note, etrailer.com does sell the waterproof resistors that you can hook up in line in the wiring harness but I prefer an integrated solution rather than a resistor dongle hanging off the wiring harness or mounted to the trailer. I like KISS solutions (keep it simple, stupid). Thank you everyone at etrailer!! I look forward to purchasing more from you because you give me confidence in your products, your company, and in mankind. Okay, maybe notsomuch with mankind as a whole :-). 574819



- TR20141
by:

This is an excellent adaptor plug for my Mercedes suv to be able to use the trailer lights. 898710



- TR20141
by:

Just as advertised. Delivered fast. 904243



- TR20141
by:

I year later still works perfect on my benz 896999



- TR20141
by:

Worked well on my 2014 Mercedes ML350. There’s an extra pin, but that doesn’t seem to effect the plug’s operation. 892341



- TR20141
by:

Discovered my Jeep had the wrong chip for new LED trailer lights, so I had a purchase the right chip to get this adapter working. After that, worked and still works like a charm. Still using it today. Thumbs up! 891890



- TR20141
by:

Couldn’t ask for a better product, the installation was extremely easy with the instructions that they supplied. 880228



- TR20141
by: 08/29/2020

Works really well. well made. 870785



- TR20141
by:

Worked perfectly for my application. 868413


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Ask the Experts about this Tow Ready Wiring

  • Trailer Wiring Adapter Recommendation for Audi Q7 Towing Trailer with LED Taillights
    German vehicles are notorious for not liking LED trailer taillights. Typically they won't work and a bulb out sensor will go off. We have two adapters for that. If your float has a 4-way connector the adapter you'd need is the part # TR20141 or if it's a 7-way part # 20142.
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  • Load Resistors for 2018 Toyota Tundra and 2010 Airstream with LED Lights to Remove Error
    The Putco load resistors # P230004A-2 put out 6 ohms resistance each and you most definitely can install them yourself. I've attached a photo of the correct installation method to assist. They will get warm to the touch but you can absolutely install them on the inside of your RV where the wires come in from the tow vehicle. I wouldn't put anything right up against the fins as that would further reduce cooling and increase heat, but you won't have any issue in the location stated. The...
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  • LED Load Resistor for 2016 Land Rover LR4 Towing Trailer with LED Lights
    If your camper trailer has a 7-Way you need part # 20142 but if it has a 4-Way or 5-Way flat connector then use part # TR20141 instead. They both offer the same solution for your 2016 Land Rover LR4 it just depends on what you have on your trailer side.
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  • Recommended 7 Way to 4 Way Adapter for a 2015 Volkswagen Tiguan Towing a Trailer with LED Lights
    The 7-way to 4-way adapter you need is the Tow Ready # TR20141. It will work with your 2015 Volkswagen Tiguan towing a trailer equipped with LED lighting. The Tow Ready adapter # TR20141 has built-in load resistors to simulate more load so your 2015 Tiguan does not give the bulb out sensor error. I included a video review for you too.
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  • Trailer Adapter Needed For a 2011 Volkswagen Touareg Towing a Trailer with LED Lights
    The 7-Way to 5-Way and 4-Way Trailer Adapter, # TR20141, that you have referenced is the part you need. It is specifically designed to work on a 2007 and newer Volkswagen Touareg when towing a trailer that is equipped with LED lights. Your Touareg will need to already have a 7-Way trailer connector and this this adapter will plug into it. The 5-Way trailer connector will then plug into the back of the adapter and that will be all you need.
    view full answer...
  • Will 7-Way to 5- and 4-Way Adapter Work with Trailers with and without LED Tail Lights
    Yes, you can use the special 7-Way to 5- and 4-Way adapter # TR20141 on trailers with or without LED lights. The adapter was designed to work with Volkswagen, Audi, Porsche, and any other vehicles that are otherwise not compatible with a trailer with LED lights. On those vehicles there is not enough draw from the LED trailer lights and the vehicle thinks there is a bulb out and will produce a warning lamp. The adapter has load resistors inside that simulate additional load so that does...
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  • 7-way Recommendation for a Pre-Wired 2014 VW Tiguan R Towing Trailer with LED Lights
    First off, thank you very much for including the picture that you did. With that picture I know exactly what connector you would need. What you have is the industry standard plug that a standard 7-way would plug into. You would want the Replacement Multi-Tow 7-Way # 30955. The connector end of this would plug right into the connector of your picture and you would have a fully functional 4 and 7-way. Since your trailer has a LED lights and a 4-way you would want the 7-Way to 5-Way...
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  • What are the Pin Out Functions of the 7-Way to 5-Way and 4-Way Adapter # TR20141
    The 5 functions that the 7-Way to 5-Way and 4-Way Trailer Adapter for VW, Audi and Porsche Towing Trailers with LED Lights # TR20141 utilizes are : Tail/Running Lights Left Turn/Stop Ground Right Turn/Stop Reverse Lights I have attached a picture of a Traditional 7-Way connector on the vehicle's end to demonstrate the pin locations.
    view full answer...
  • LED Trailer Lights Flickering When Towed by 2015 Audi Q7
    Since Adapter # TR20141 did not work to stop the flickering of your trailer's LED lights, what you need to do is install Load Resistors # P230004A or # P230004A-2 for a quantity of two. You will need one load resistor for each affected circuit.
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  • Load Resistors for LED-Light Trailer Towed by 2017 Audi Q7 with Factory 7-Way
    I cannot speak for Audi in terms of any progress they've made with the compatibility of their OEM wiring with LED-equipped trailers, but we do offer the Tow Ready adapter # TR20141 you referenced. This will carry your lighting and reverse lockout signals in the 5-pole format. If this does not work for you the other option is to wire in load resistors in front of each LED light on the trailer. Load resistors like ceramic # P230004C or aluminum # P230004A can mimic the electrical characteristics...
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  • Using an Adapter to Tow a Trailer with LED Lights with a 2012 Mercedes GL450
    Yes. If your trailer with LED lights has a 5-Way or 4-Way flat connector then you would use adapter # TR20141. If the trailer has a 7-Way connector you would need # C57003. These adapters have load resistors in them that provide additional power draw so the vehicle thinks there are incandescent lights on the trailer. The other option is to install load resistors, # P230004A, in line on each circuit on the trailer wiring behind its connector. You can also use this method if the resistors...
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  • Why Won't 7-Way to 5-Way Activate Trailer Brakes
    The issue you are having is that the 5th circuit of a 5-way is not normally wired for a brake output circuit so if your adapter is not able to connect the correct circuits since it's assuming the 5th circuit is for reverse lights. The easy fix you have would be to swap the center pin and the 5:00 pin of the 7-way on your truck and the fifth circuit will work to activate the trailer brakes.
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  • Troubleshooting LED Utility Trailer Lighting on a 2011 Mercedes-Benz GL450
    Good news, you are correct in that the Tow Ready # TR20141 adapter will fix your 2011 Mercedes-Benz GL450 to work with your LED trailer lights. Some makes of cars are more sensitive to the LEDs and this adapter contains a resister that's needed to accommodate that sensitivity. With the # TR20141 adapter it will end up taking you from a 7-way to a 4-way, but if your trailer is a 7-way plug I'd recommend the # C57003. The Curt adapter has the same resister but allows you to still have...
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  • Trailer Wiring Adapter Recommendation for a 2011 Mercedes ML350 for Towing LED Trailer
    If you have a 7-way on your 2011 Mercedes ML350 and when you connect your trailer with LED lights you end up getting a bulb-out error code the 7-way adapter part # TR20141 will work for you. There are load resistors in this adapter that increase the amperage draw of the vehicle's trailer wiring so that the vehicle does not think it has a blown taillight bulb. If instead your trailer has a 7-way connector you would instead need the part # C57003. The # TR20141 will convert a 7-way...
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  • Solution for Land Rover LR4 that won't Recognize Trailer with LED Taillights
    We have a similar product as the one you referenced, part # TR20141. This product works on most German vehicles that have a hard time detecting trailers with LED taillights. I would normally recommend this for a situation like yours. But we have had feedback with other Land Rover owners who have reported that this product did not work with their trailer with LED taillights. The best recommendation I could make for you would be to replace the LED taillights of your trailer with incandescent...
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  • Wiring Adapter For 7-Way connector On 2009 Mercedes Benz And 4-Way Connector On Trailer
    For your 2009 Mercedes Benz ML the adapter I recommend is the Tow Ready 7-Way to 5-Way and 4-Way Trailer Adapter, part # TR20141. This adapter is designed for vehicles with LED lights. This will allow you to be able to power the lights on your trailer without having to replace the 7-way connector on your vehicle. In the future if you need to tow a trailer with a 7-way connector, you can simply remove this adapter and you are ready to go.
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  • Solutions for 2010 Range Rover that Doesn't Detect LED Trailer Lights
    Normally for the problem you are describing we recommend the # TR20141 as it is designed to fix the problem you are describing, but we have found that this product does not work on Range Rovers for some reason. The best recommendation I could make for you would be to replace the lights on your trailer with incandescent bulbs or install load resistors on the trailer lighting circuits like part # P230004A-2. I attached a link to the right that has all of the trailer lights we offer...
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  • Will Tow Ready Wiring Adapter # TR20141 Work With Trailers Using LED or Incandescent Lighting
    The Tow Ready Trailer Wiring Adapter, part # TR20141, you have referenced will work with both incandescent or LED lights on a trailer. This adapter is designed to be used on vehicles with incandescent lights towing a trailer with LED lights. The Lamp Out Warning Module on your BMW X3 is a feature that lets you know of a bulb that is burned out on your vehicle. It also passes through the trailer wiring. When towing with a trailer that has LED lights, which require less power then incandescent...
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  • Left Side Trailer Lights Not Working But All Other Lights are Fine
    On a 7-Way trailer connector usually the wire functions are green for running lights, black for 12 volt power, yellow for reverse lights, brown for right turn/brake lights, red for left turn/brake lights, blue for electric trailer brakes, and white is ground. With that said it is best to test the connector using a circuit tester such as # 40376 while someone sits in the truck and runs through the lighting functions. On the trailer, the 4-Way will have the one covered pin as the ground....
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  • Troubleshooting Factory Trailer Wiring that has No Power
    My first thought would be blown fuses, so I would be sure to double check all fuses and relays related to the tow package. This information will be listed in your owners manual. Check to ensure you are getting power at the trailer connector on your vehicle. Using a circuit tester like # 40376, test the vehicle side connector since it's factory trailer wiring. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector...
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  • Troubleshooting Trailer Lighting Errors on 2017 Ford F-350 and Trailer Light Functions
    LED Lights draw much less power than an incandescent light, so you may need to add a load-resistor to get the draw for your lights to work and sensor to go off. The 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs # TR20141 and the 7-way # 20142 both have integrated load-resistors. Because your lights worked before, I recommend checking your ground connections to make sure they are free of rust and corrosion and have a bare metal to metal...
    view full answer...
  • 7-Way to 5-Way Trailer Wiring Adapter Recommendation for Porsche Cayenne
    German vehicles like your Porsche don't like trailers with LED tail lights. It causes a tail light bulb sensor to pop up on the dash when connected to them. That is why the part # TR20141 was created. This adapter has diodes in it that allow the trailers with LEDs to be towed without any issues. This adapter can be used on trailers with incandescent bulbs as well too. The part # A75TB is the same adapter but without the diodes.
    view full answer...
  • Trailer Connector Adapter fore 2010 Nissan Frontier
    Which trailer connector does the Frontier currently have, a 4-pole or a 7-way? Which connector does your trailer use? If you have the factory 4 pole on the truck and need to convert it to the 7-way, you can do so by installing part # 118267. If your trailer has electric brakes, and you'd like them to actuate you would need to install a brake controller like the Tekonsha Prodigy P2 part # 90885 and the brake controller wiring adapter, part # 3050-P which would plug in under the dash near...
    view full answer...
  • Troubleshooting 2017 Ford F-250 Error Message for Trailer Lighting Module
    In order to help you troubleshoot this issue I need to ask you a few questions. On the trailer, do the turn signals operate properly, meaning do they flash at the expected rate? Were the LEDs installed recently as replacements or are they the original OEM lights? Has the trailer operated correctly until now or has it always had this issue? I ask these questions because the newer Fords have a fairly complicated trailer wiring setup and I have heard of this issue before. Sometimes...
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  • 2011 Range Rover with Trailer Assist Does Not Recognize Trailer with LED Tail Lights
    First an adapter with load resistors that goes from a 4-Way flat to a 4-Way flat is not available. You would need to use the 7-Way to 4-Way adapter, # TR20141 for that. This particular adapter was designed to offer enough resistance when towing a trailer with LED lights so you no longer get those errors. The other option is to install load resistors, like # P230004A-2 for a 2-pack, in line on the trailer wiring for each circuit.
    view full answer...
  • Will the Tow Ready 7-Way Adapter TR20141 Fit a 2011 Mercedes GL 350
    If your 2011 Mercedes Benz GL 350 has a 7-way trailer connector on it yes, the part # TR20141 will fit it and work well to provide you with a 4 or 5-way.
    view full answer...
  • Wiring Adapter for Land Rover to Allow Proper Operation of LED Trailer Lights
    We do offer wiring adapters for import vehicles to help them properly operate the LED lights on a trailer. If both the vehicle and trailer have a 7-way RV style connector then you can use part # C57003 from Curt. If the trailer has a 4-pole flat connector then instead you'll use # TR20141 which provides that connection. Both of these require a 7-way socket on the vehicle, like the one shown in the linked photo.
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  • Wire Functions On LED Trailer Not Working Properly With 2004 VW Touareg V8
    I think a simple adapter may solve your problem. Since your trailer with LED lights has a 4-Way flat connector, you will need the 7-Way to 5-Way and 4-Way Trailer Adapter for VW, Audi and Porsche Towing Trailers with LED Lights # TR20141. This adapter has load resistors that provide additional power draw so the vehicle thinks there are incandescent lights on the trailer. If the adapter doesn't solve it, there is most likely a wiring issue. I've attached an article to help you troubleshoot,...
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  • LED Light Bar and Hitch Light Cause Error Warnings and Disable Backup Features on 2015 Ford F-150
    The issue might be that the LED lights do not draw enough power and it is confusing the computer on your 2015 Ford F-150. If you accessories plug into a 4-Way then you could use adapter # TR20141 which has built in load resistors to add more load to the system so it won't confuse the computer. If they plug into a 7-Way we have a similar adapter, # C57003. There may be other ways to disable those alerts or to have manual control over them but you may need to check with a Ford technician...
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  • Can 7-Way to 5-Way Adapter part # TR20141 Activate Reverse Lock Out of Surge Brakes
    As long as the 7-way installed on your 2006 Toyota 4Runner has the reverse light function active yes, the 7-Way to 5-Way Adapter part # TR20141 that you referenced would work well to activate the reverse lockout on your trailer.
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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video Edited:
Jacob T
Updated by:
Laura H
Updated by:
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Updated by:
Alexander C
Installed by:
Randy B
Video by:
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