7-Way Trailer Adapter for Towing Trailers with LED Lights
(114 reviews)
Price: $32.50
In Stock
7-Way Trailer Adapter for Towing Trailers with LED Lights
Item # C57003
Retail:$54.00
Our Price: $32.50
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In Stock
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- Reviews (114)
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CURT Custom Fit Vehicle Wiring - C57003
- Custom Fit
- 7 Round - Blade
- Trailer Hitch Wiring
- CURT
Plug this adapter into your existing 7-way when towing a trailer equipped with LED lights so that your vehicle's computer will recognize the trailer's signals. Designed for use on vehicles with Trailer Lamp-Out sensors.
Features:
- Plugs into an existing 7-way socket to provide a new 7-way socket that is able to recognize LED trailer lights
- Built-in resistors enable LED signals from your trailer to be read by your vehicle's computer
- No cutting or splicing required
- Great for use on vehicles with Trailer Lamp-Out sensors, such as Audi, Mercedes-Benz, and Volkswagen vehicles with the factory tow package
- Spring-loaded dust cover protects terminals from moisture and debris when connector is not in use
- 1-Year limited warranty
57003 Curt 7 Way LED Trailer Light Adapter
California residents: click here
Video of 7-Way Trailer Adapter for Towing Trailers with LED Lights
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Review of Curt 7-Way LED Trailer Light Adapter - C57003
Jeff Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at this CURT seven-way trailer adapter for towing trailers with LED lights. Now, this'll basically plug into your existing seven-way socket, and it provides a new seven-way socket that's able to recognize LED trailer lights. They use built-in resistors, which'll enable the LED signals from your trailer to be read by your vehicle's computer. And to install this, there's no cutting or splicing required. It's basically just a plug-in.
This is great for use on the vehicles with the trailer lamp out sensors, like the Audi, the Mercedes and the Volkswagen vehicles that have the factory tow package. What this adapter will do is simulate the increased power draw so the vehicle thinks there's incandescent lights on the trailer. Then you won't get the lamp bulb out reading that usually flashes on the dash of those vehicles. You can see it also, right here, has a nice spring-loaded dust cover. This'll help protect the terminals from moisture and debris when the connector is not in use.
Overall length on this from one end to the other is about 12 inches, and you can see it is a flexible cable. But that should do it for the review on this CURT seven-way trailer adapter for towing trailers with LED lights..
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- Did not fit
Customer Reviews
7-Way Trailer Adapter for Towing Trailers with LED Lights - C57003
Average Customer Rating: 4.6 out of 5 stars (114 Customer Reviews)
Plug this adapter into your existing 7-way when towing a trailer equipped with LED lights so that your vehicle's computer will recognize the trailer's signals. Designed for use on vehicles with Trailer Lamp-Out sensors.by: Roger 05/15/2023
I used this adapter on my 2021 Ford F150 to fix a turn signal fault message that kept flashing on screen when I towed my trailers. The pickup computer didn't recognize the LED lights on my trailer.
Works perfectly.
Excellent customer service and fast shipping.
by: Jim D05/29/2024
This seems to be a little known issue for new boat trailers and RV's outfitted with LED lighting. This product is a quick fix for late model GMC and Chevy trucks. Due to the low signal on trailers using LED lights the vehicles trailer tow package does not recognize that a trailer is connected to the vehicle. I added this adaptor and it worked perfectly. Camera's work on the truck, running lights, signals and brake lights all work. My GMC dealer is getting calls for this issue daily. This saved me a visit to the dealership and messing around checking grounding etc. Well worth the price and from what my dealership is telling me they will be flying off the shelf!
by: Will 05/24/2024
awesome, My Sprinter lights up my toad Jeep jl With Leds
by: Peter 04/30/2024
Allows led trailer lights to work prope rly!
by: Melvin06/10/2024
This adapter did solve my goofy lighting issues and that part works well. The only thing that would have worked better is if it didn't have the bulky mounting bracket with the spring loaded door on it. I did remove them with a cut-off wheel a few months ago and now it's easier to use.
by: ,Nickey04/26/2024
It works fine and does the job, HOWEVER, it would work much better for me, if the receptacles were together without a cord between them...
by: Harlan10/02/2023
I tried it on a 2007 Land Rover and the trailer lights still pulsed. Didn't work.
Heather A.
10/20/2023
Hi Harlan. It sounds like you may have a bad ground. You probably already know this but this adapter is designed to help the complex computer system of luxury vehicles recognize the LED lights on your trailer. Since LED lights draw such a small amount of power, the vehicle's 7-way will not recognize the LEDs on the trailer and that leads to the pulsing. Since you are using the adapter and the lights are still pulsing I recommend to check your ground connections. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. I am certain this will fix your pulsing issue and if it doesn't, please let me know so we can continue troubleshooting. The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.
by: Louis03/28/2022
In October 2021, I purchased several packs of LED bulbs from etrailer and replaced the dim OEM incandescent marker lights and turn signal lights on my 2021 Coachmen Freedom Express UltraLite 192RBS travel trailer.
Replacing the bulbs was a piece of cake and took only a few minutes. When all the bulbs were changed out, I hooked up my 2020 Ford F-150 and connected the 7-wire connector. All of the new LED bulbs worked flawlessly as expected.
When I made my next trip in the travel trailer, I starting getting “fault” messages on my Ford F-150’s instrument cluster. These messages were alerting me to a problem with either the turn signals or the trailer lights. The first couple of times this happened, I immediately pulled over and checked all my lights. Everything was good. I hit the “OK” button on my steering wheel and turned off the warning. During my six-hour trip, I received these warning messages numerous times (and never a problem was detected).
I sent etrailer a note a couple of weeks ago asking if they had encountered this problem before. Becky B. quickly let me know that my problem was not unique. She suggested etrailers Curt adapter (item C57003) as a possible solution.
I quickly ordered this adapter, and I used it this past weekend (26 March 2022). The adapter worked great! No more “fault” messages.
Thank you, Becky B., and etrailer!
by: Levi08/30/2023
Once I figured out what was wrong with my truck, this device is doing exactly what I need it to do. Even without plugging a trailer in, the device gets my truck to think there's a trailer. I purchased a camper that needs the 12v charge and this seems to be the easiest way to get the truck to activate that charge lead.
by: William 11/16/2023
Resolved issue with truck not picking up signal from horse trailer
by: Daniel01/21/2019
Fixed the issue with my 2009 GL-550.
Was super bummed when I purchased a new 2018 Flacon 23RB and the trailer dealership couldn't get the lights to work with my GL, even after putting in resisters and couldn't leave the lot with the trailer on the back of the GL, had to a friend's truck. Mercedes didnt have any answers either. So hit Google and found this pig-tail.
Thank you SO much!!
by: Maenda08/01/2023
I bought this to tow a little trailer with a 4 pin behind my Tesla which has only the 7 pin. Works wonderfully! No issues at all
by: John 07/31/2023
I have a 2019 GMC, that I paid 50k for, used. But, it will not recognized my boat trailer. It's a common problem I found out after I bought the truck. The fix is to take it to the dealer for a day or two. Plus dealing with the hassle, OR buy this part, and go on with your life. Life saver !!
by: Pierce07/25/2023
As advertised. Great job by etrailer folks with order updates. Received, shipped, and tracking info. I will definitely use etrailer in the future!
by: Bernie 05/29/2023
A new boat trailer and a couple year old Silverado we’re unable to recognize a light signal. My dealer was no help. The trailer adapter solved the problem and everything works! Quality appears to be very good as well.
by: Dale 02/06/2024
Product was as described and was delivered quickly.
by: Curtis 07/22/2023
I have been using this adaptor for a year now. The adaptor is very simple to use and works fantastic! Thanks!
by: Ed05/28/2016
my problem: '11 ML350. trailer LED running lights would only flash (like emergency flashers). All other functions worked find - turn signals, brakes, etc. There were no warning lights/codes, etc displayed on the dash.
This product completely solves this problem - it's a quality built product at a reasonable price. Although the trailer end of the pigtail includes mounting bracket for a permanent installation, I won't go to that extent as I rarely use the trailer. I will most likely just zip tie the pigtail to what ever is convenient to eliminate any flopping around while on the road.
Ed
5/28/2017
1 yr later - still working great wno issues whatsoever.
by: Dave 07/13/2022
Good price, fast delivery fixed the problem. Can't ask for more then that!
David M.
7/14/2023
Great, an easy solution to a difficult problem.
by: Sarah02/22/2023
Disappointed with the customer service. Wanted to return this item as it did not solve the problem I was having (F150 displaying lighting errors). It was plugged in for a few minutes to test lights but is apparently considered ‘used’ and unreturnable so now I’m stuck with a product I have no use for. Will not be using this company for future orders.
by: David 06/14/2023
Received on time and works as expected. Will use etrailer again.
by: Scott 07/24/2022
Perfect problem solver for LED lighted trailers. I fix mounted adapter, it comes with mounting bracket. I ordered a large rubber cap to cover the plug end to vehicle when not in use. Basically you need to unplug the adapter when not I use or the vehicle thinks a trailer is still attached.
by: Michael05/18/2022
Works as advertised and attaches secure ly.
Michael
5/18/2023
Still fits securely. I have noticed that the brakes lights will flash once or twice upon install, but it’s works as advertised.
by: Allan08/20/2022
I bought this hoping it would fix my 2021 Ford F-150 infamous trailer disconnect from my LED lights on my Echo UTV trailer. It didn’t. Ford recently did an update addressing a trailer brake disconnect error but this did not help the trailer disconnect error happening randomly all the time during road trips. Super annoying to hear the binging all the time.
by: Roger03/31/2023
Timely delivery and good follow up from etrailer. Parts fit and work as expected
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See what our Experts say about this CURT Custom Fit Vehicle Wiring
- Do I Need A LED Bulb Out Adapter When Using A Brake Controller On my 2012 Porsche Cayenne? The Curt 7-Way Trailer Adapter # C57003 is only needed for trailers that have LED taillights. There are internal resistors that will make the computer on your 2012 Porsche Cayenne sense that it is connected to a trailer as the LED light do not draw as much power as incandescent bulbs. If your trailer does not have LED taillights then the adapter is not needed. I recommend using the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 with the Tekonsha Plug-In Wiring Adapter # TK22FR on...
view full answer... - Adapting 2004 Porsche Cayenne 7-Way Trailer Connector to Trailer with 7-Way Rectangular ConnectorWe do not have a converter to go from a 7-Way blade-style trailer connector to a rectangular 7-Way. You will need to either change the connector on the 2004 Porsche Cayenne or the one on the trailer. The one on the trailer will be easier to change. You could use # H20042. The wire functions are as follows: White is ground Red is left turn/brake lights Brown is right turn/brake lights Green is running lights Blue is output to trailer brakes (not needed since the trailer does not have brakes) Black...
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view full answer... - Troubleshooting a 2013 Ford Escape that Hyper Flashes When Connected to Trailer with LED LightsYou have a couple options to solve the hyperflashing problem you are experiencing with your 2013 Ford Escape when towing your RV. You can either use a product like the part # C57003 or you can take your vehicle to a Ford dealer and they will do a software update on your vehicle which should fix the problem. There should be a technical service bulletin that said that trailers with LED taillights can cause the Escapes to hyper flash and they can fix it if you bring the vehicle in to them.
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view full answer... - 7-Way Adapter for German Vehicles for Mercedes Towing BuickFor a 7-way adapter designed for German vehicles like your Mercedes towing LED lighted trailers/vehicles to prevent the bulb out error message we have the part # C57003. This is the adapter your dealer was telling you about and would solve your problem.
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view full answer... - Problems Paring the Prodigy RF Brake Controller with a 2015 Toyota HighlanderThere are a few things you can try to get the unit to pair. First, If you do not see displayed what the instructions say just keep going through the steps. Sometimes, it will not display what it is supposed to but it will still work if you go through the steps to completion. If that does not work then you can try taping off the pin in the 5 oclock position at the back of the RF (where the trailer plugs into) using electrical tape. Then go through the installation process. If that doesn't...
view full answer... - Parts Needed to Allow a 2015 Ford F-150 to Tow a Trailer With LED LightsThe Ford trucks have had some challenges when pairing with trailers that use LED lights, but the Curt # C57003 solves this issue completely. The built-in resistors enable LED signals from your trailer to be read by your vehicle's computer and will get you back up and running properly. As will all electrical components, there will be a little heat due to the power running through the part, but definitely not to the point of melting anything or being too hot to handle safely.
view full answer... - How to Fix Check Trailer Wiring Message on 2015 Chevrolet Silverado and Trailer with LED LightsThe Curt 7-Way Trailer Adapter # C57003 is designed to be used on Volkswagens, Audis, and Porsches but we have seen some success on other vehicle makes. I can't say for sure but it might solve your issue. The adapter uses load resistors which creates more power draw. Another possible solution is to install load resistors # DI34ZR.
view full answer... - Troubleshooting Issues with 2012 VW Touareg 7 Pin Trailer ConnectorIf your trailer or tester utilize LED lights that is likely the issue. The factory 7-way on your 2012 VW Touareg wasn't designed to function with LED's without the adapter # C57003 which has integrated load resistors to allow LED's to not trigger lamp out sensors. This also helps with the emergency flashers. If your trailer and tester are not LED, then you may have an internal issue with your 7-way and you can use either # A10-7072VP or # HM40975 to replace it. Before replacing, I...
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view full answer... - Will Curt 7-Way to 7-Way LED Trailer Light Adapter # C57003 Work with 2015 VW Tiguan The Curt 7-Way to 7-Way LED Trailer Light Adapter # C57003 that you referenced is intended for use with certain German-made autos when pulling a trailer equipped with LED-type lighting. I did check with my technical contact at Curt and he confirmed that this will also work on your 2015 Tiguan when pulling a 7-way-equipped trailer with LED-type lights.
view full answer... - Lights Do Not Work With One Vehicle Only, a 2015 Chevy TraverseThank you for your purchase directly from etrailer of the 7-Way Trailer Adapter for Towing Trailers with LED Lights # C57003. If this did not fix your issue on your '15 Traverse, and the trailer works find on your other vehicle, we know the issue is on the Traverse. Sine you already checked the fuses, the next thing to do is use a circuit tester to test the connector on your vehicle after disconnecting it from your trailer. Check the wiring going into your connector from your tail lights...
view full answer... - Using the C57003 with the Echo Brake controllerYou will want to plug the # C57003 adapter into your 7 pole on your vehicle then plug the Curt Echo # C51180 into the adapter. The trailer plug should always be plugged directly into the Echo so that there is no interference with other adapters.
view full answer... - Will the 7-Way Trailer Adapter # C57003 Activate Trailer Brakes when Used on a 2014 VW TiguanAny brake controller should be on a separate pin from the turn/brake light circuits so using the 7-Way Trailer Adapter # C57003 should not activate the brakes on your trailer (see attached picture). With that being said, there could be something going on with the wiring on your 2014 Volkswagen Tiguan that the techs are aware about if you are using an OEM controller. Any controller should be tied to a signal that only activates when your brake pedal is pushed so if they are saying that...
view full answer...
- My 2017 Ford F-150 Reads Trailer Module Fault and Turn Signal Faults, and Trailer Lights Don’t WorkAccording to what you told me, since it's not the LED lights, you may want to re-check the ground on the vehicle side. Since you are not getting the proper signals to the trailer lights then you will want to start off by making sure your vehicle end connectors where the factory harness plugs in do not have any corrosion on them. make sure sure they are clean and the pins are not bent. Yes, this applies on new trucks. If they look good then you will want to check the wiring on your vehicle...
view full answer... - Can this Curt Wiring Adapter # C57003 Be Left Plugged In on 2016 VW Touareg?The Curt 7-Way Trailer Adapter for VW, Audi, and Porsche Towing Trailers with LED Lights # C57003 can be left in place without the trailer plugged in on your 2016 Volkswagen Touareg. It can be mounted to your vehicle permanently if you desire. I do recommend using Dielectric Grease for Electrical Connectors, 2 oz. # 11755 on your connections to ensure you keep moisture and debris out of the contact points. This will prolong the life and function of the connection and the adapter. If...
view full answer... - Trailer Wiring Adapter Recommendation for a 2011 Mercedes ML350 for Towing LED TrailerIf 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 # C35FR 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 # C35FR will convert a 7-way to a 4-way.
view full answer...
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Updated by:
Lindsey S
Updated by:
Rachael H
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Isabelle B
Installed by:
Jeff D
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Roger
5/16/2024
This converter for LED trailer lights works perfectly on my 2021 Ford F150.