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Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights

Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights

Item # RO44FR
Our Price: $132.12
Tow Bar Wiring

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The diodes in this kit convert the 12V signal from your RV to a 9V signal, ensuring that your car's variable voltage tail lights function as intended. 4-Wire harness included for installation. Adapter cord and plug sold separately. Great Prices for the best tow bar wiring from Roadmaster. Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights part number RO44FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (32)
  • Q & A (0)
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Roadmaster Tow Bar Wiring - RO44FR

  • Diode Kit
  • Splices into Vehicle Wiring
  • Universal
  • Roadmaster

The diodes in this kit convert the 12V signal from your RV to a 9V signal, ensuring that your car's variable voltage tail lights function as intended. 4-Wire harness included for installation. Adapter cord and plug sold separately.


Features:

  • Wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system
  • Smart diodes ensure that your variable voltage, LED tail lights function as they should while your car's being towed
    • Converts the 12V signal from your RV's wiring to a 9V signal so your tail lights work as intended
    • Prevents electrical feedback that can damage your vehicle's electrical components
  • Power coated aluminum casing on diodes is corrosion resistant and provides protection from the elements
  • Kit includes 2 smart diodes, wiring harness, split loom, ring terminals, and zip ties
  • Brake light relay (RM-88400 sold separately) may be required if used with supplemental braking system
  • Made in the USA


Specs:

  • Maximum amperage: 5 amps
  • Maximum voltage: 16 volts
  • Wiring harness length: 27'
  • Limited lifetime warranty


This smart diode wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system so that you'll have the signal lights necessary for flat towing your vehicle.


Because your vehicle has variable voltage tail lights, you cannot use a standard diode wiring kit to get these signal lights. If regular diodes are used on a vehicle that has variable voltage tail lights, the bulbs will light up as though the towed car is braking whenever the tail lights are on. In other words, there will be no difference between the vehicle's brake lights and running lights. This is because variable voltage tail lights use the same wire to power both the brake lights and tail lights. They do this by using a 12-volt signal for brake lights and a 9-volt signal for tail lights.


Smart diodes correctly modulate the 12-volt signal coming from your RV to activate only the intended circuit. The result is that your vehicle's tail lights look and function as intended.


This wiring kit is designed to work with LED lights only. If your vehicle has incandescent lights, you'll need to use the smart diode kit designed for incandescent tail lights (RO94FR - sold separately) instead.


When installing this kit, you will need to add either a 4-way or 6-way round electrical connector to the front of your vehicle so you can connect to your RV when you're ready to tow. Use one of Roadmaster's coiled cable kits (RM-164-7 or RM-146-7 - sold separately) to get both the connector and the adapter cord needed for fast, easy hookup.


If your RV has separate tail light wiring, wherein the brake and turn signals run on separate wires, you'll need a wiring converter (RM-732 - sold separately) to complete this installation.


Smart Diode Wiring Diagram


153789 Roadmaster Wiring Kit with Smart Diodes for Variable Volt and LED Bulbs

Installation Details RO44FR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights - RO44FR

Average Customer Rating:  4.8 out of 5 stars   (32 Customer Reviews)

The diodes in this kit convert the 12V signal from your RV to a 9V signal, ensuring that your car's variable voltage tail lights function as intended. 4-Wire harness included for installation. Adapter cord and plug sold separately.

by:

This system works great. Installed on a 2023 Equinox LT (AWD). It was a little challenging running the wiring from the engine compartment to the taillights of the car, but not overly complex. The etrailer video is very helpful.



by:

Only 3 feet of split loom and kit uses blinker lights as brakes.

Etrailer Expert

Katrina D.

10/16/2023

After looking at the layout of a Chevy Equinox, you really would only need maybe a couple of feet of loom, Most of the wiring should be tucked up against the vehicle. As for the blinker lights, I need to know what model your Equinox is, in order for me to better assist you.



by:

Worked as described easy video to following in installation



by:

One of the diode was inop

Etrailer Expert

Brooke M.

11/29/2023

This part does come with a warranty and I can see that our customer service team is already working on sending you a replacement. Thank you for letting us know so we could get you a working part!



by:
Ford

We were at a stand still. Wiring the lights from my motorhome to my ford pickup. Sheryl saved the day, without hesitation, she described just what we needed.
Always turn to etrailer for hitch, electrical and all towin needs. Never let me down.



by:

It works as advertised. Installation not too hard, be patient, read the directions multiple time, you are dealing with very small wires, make good connections.



by:

Great and fast service!!!
Thank you!
!!



by:

Fast delivery



by:
2021 Ford F-150

Great service and fast shipping.

William

12/5/2022

The product is working great. I have had no problems with it so far. I think it is a great product and I installed it myself.



by:

Product was delivered ahead of scheduled time, this company is great, will definitely buy from them again



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Everything we ordered worked perfectly.



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Good product does what it says and easy to install.



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2022 Ford Bronco



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Show More Reviews

See what our Experts say about this Roadmaster Tow Bar Wiring

  • How Does Roadmaster Smart Diode Kit Operate Taillights of 2019 Ford Edge ST
    Yes you are exactly right on how the Roadmaster Smart Diode Kit part # RO44FR will work on your 2019 Ford Edge ST. It will function the taillights of your 2019 Ford Edge like a combined setup where the stoplight and turn signal will be on the same bulb. This is by far the simplest and easiest way to wire up your vehicle and since it's just as functional as a separate setup I like it the most and would be what I would personally do if I were you.
    view full answer...
  • Where Does Running Light Circuit of 2020 Ford Edge Run to Roadmaster Smart Diode Kit
    As long as you find a circuit that that has the running lights and the stoplights on your vehicle that would be all that you would need to run to the diodes of the Roadmaster smart diode kit part # RO44FR. The taillight circuit from your tow vehicle (the motorhome) would run to the middle pin of the diode on the side that has three. On your Ford Edge the wire that runs to your vehicle taillight is the one labeled car brake out.
    view full answer...
  • Troubleshooting Roadmaster Diode Kit Not Activating Running Light Circuit 2020 Ford Edge ST
    Hey Jeff, so the Roadmaster Smart Diode Kit part # RO44FR is the correct diode kit for your 2020 Ford Edge ST so the issue has to be related to how it's installed based on that and likelihood that something would be wrong with both diodes for the running light circuit to not function on both sides. So you would want to go over the connections made to the running light circuit and verify you are connected to the correct circuit.
    view full answer...
  • Correct Flat Tow Wiring Harness Didoes for 2022 Ford F-150
    The 2022 Ford F-150 (Non-Hybrid) requires special diodes for the flat-tow wiring harness. If you're not using these special diodes then you could run into issues like you described. The correct ones for this vehicle are the Roadmaster Universal Wiring Kit with Smart Diodes; part # RO44FR for vehicles with LEDs or part # RO94FR for vehicles with incandescent. If you are using smart diodes already please let me know and I would be glad to see if I can assist further another way.
    view full answer...
  • RM-152 Diode Kit Compatibility With A 2021 Jeep Gladiator With LED Tail Lights
    According to Roadmaster, if your 2021 Jeep Gladiator is equipped with ParkSense proximity sensors then you'll need the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights # RO44FR. If you do not have the ParkSense feature then you'll be fine with the Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152.
    view full answer...
  • Parts Needed to Adapt a 4 Pin to a 6 Pin Round
    Yes, it is possible to change your 4 pin to a 6 pin round. I recommend using the Adapter 4 Pole to 6 Pole and 4 Pole Trailer Wiring Adapter # 37175. This would allow you to have both the 4 pin and 6 pin round. I have included a video that shows an installation of the # 37175. You will want to pick up some Dielectric Grease # 11755 and the No-Drill Mount Bracket # 18136 for installation.
    view full answer...
  • Recommended Tow Bar Wiring Kit For 2023 Ford Bronco
    We have just the thing! Most of the 2023 Bronco models will require use of a smart diode. It depends on what lighting system your Bronco has. If your vehicle has the variable voltage LED lighting you will want the # RO44FR. If it has incandescent lighting you will need the # RO94FR. The type of lighting will be specified in your owners manual. The Bronco LED lights look very different from the incandescent. The LEDs will have a clear lens with red behind, while the incandescent has a red/white...
    view full answer...
  • Diode Wiring Needed To Flat Tow A 2023 Chevy Equinox LT
    A 2023 Chevy Equinox LT requires smart diodes so you would need the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights # RO44FR if you have LED tail lights or the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights # RO94FR if you have incandescent tail lights. If you don't have the 6-pole socket then you'll also want part # RM-910030-7 as well.
    view full answer...
  • Diode Tow Bar Lighting Kit that Fits 2015 Ford Edge Hybrid with LED Taillights
    I checked with Roadmaster on this and found out that the hybrid versions of your 2015 Ford Fusion with the LED taillights require a different diode setup which is why you are experiencing the problems you've mentioned using the # RM-154. So instead you would need the diode kit part # RO44FR for just the diodes and wiring or part # RM38FR for the kit that includes the coiled tow bar wiring and connectors.
    view full answer...
  • Stop Light Switch and Diodes for LED Lights when Flat Towing a 2019 Chevy Equinox
    For your 2019 Chevy Equinox you will need a separate brake switch. You will want the Roadmaster Stop Light Switch Kit item # RM-751489. You will be able to use your existing LED tail lights but you will need the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights item # RO44FR. The diodes in this kit convert the 12V signal from your RV to a 9V signal, ensuring that your Equinox's LED tail lights function as intended.
    view full answer...
  • Tow Bar Wiring For A 2021 Ford F-150 With Incandescent & LED Taillights
    The best way you can determine if your 2021 Ford F-150 has LED or Incandescent lights is to call the dealer with your VIN number and they should be able to tell you. If your vehicle has LED lights, you can use the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights # RO44FR. Or If your vehicle has incandescent lights, you can use the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights # RO94FR. You will also...
    view full answer...
  • Do I Need To Have A 3-Wire to 2-Wire Converter To Flat Tow a 2022 Ford F-150?
    Ultimately you do not need a converter as you can wire the tail lights on your 2022 Ford F-150 to operate as brake and turn signals just like the lights on your motorhome. You will need to use the Roadmaster Universal Wiring Kit with Smart Diodes # RO44FR as your F-150 has variable voltage LED lights that can be damaged if these diodes are not used. The diodes lower the voltage to the lights from 12 volts to 9 volts, protecting the tail lights. Your F-150 should also have a Battery Charge...
    view full answer...
  • Is Roadmaster Smart Diode Kit Required for a 2020 Ford Edge ST
    To flat tow your 2020 Ford Edge you will need "smart diodes" as included in the Roadmaster # RO44FR Universal Kit. However, I would go ahead and get the Roadmaster # RM38FR kit that additionally includes the 7-way to 6-way cable and connectors that you will also need. Additionally, your Edge will drain its battery while being towed. I recommend the RM-766 battery disconnect unless you want to manually wrench the battery cables off every time that you unhitch and rehitch! Flat towing...
    view full answer...
  • 2024 Chevy Equinox Premier. Wiring Kit Needed to Fit with Nighthawk Tow Bar
    The Roadmaster Nighthawk All-Terrain Tow Bar w/ LED Lights # RM-676 does have about half of the standard wiring kit you need for your 2024 Chevy Equinox Premier. To complete your wiring you need the Universal Wiring Kit with Smart Diodes # RO44FR, and then I also recommend installing the Charge Line Kit # RM-156-25 to ensure your battery isn't dead when you get to your destination. The Smart Diodes in the universal wiring kit is needed so your LED tail lights will properly function. If...
    view full answer...
  • Parts Needed to Flat Tow 2021 Ford F-150
    The best flat tow set-up for a 2021 Ford F-150 is as follows: - Base Plates, Roadmaster Direct-Connect Base Plate Kit, # RM38VR - Tow Bar, Roadmaster Nighthawk All Terrain, # RM-676 (includes the needed safety cables) - Wiring for Indicator Lights, Roadmaster Universal Wiring Kit, # RO44FR - Supplemental Braking System, Blue Ox Patriot Portable Braking System, # BLU37TR along with, Brake-Lite Relay, # RM-88400 and Battery Charge Line Kit, # RM-156-25 The Roadmaster Direct-Connect Base...
    view full answer...
  • Recommended Flat Tow Wiring Kit For A 2023 Ford F-150 Lariat With LED Tail Lights
    I recommend The Roadmaster Universal Wiring Kit with Smart Diodes # RO44FR for flat towing your 2023 Ford F-150. The smart diodes in the kit will ensure that your variable voltage, LED tail lights will function as they should while your truck's being towed. You may also need a Brake Light Relay # RM-88400 if you're using a supplemental braking system. Your F-150 will also require a Battery Charge Line Kit # RM-156-25 when used for flat towing. Using this kit will keep the battery from...
    view full answer...
  • Flat Tow Wiring for 2020 Jeep Gladiator and 2022 Chevy Equinox with LED Tail Lights
    Thank you for all of the information! For your 2020 Jeep Gladiator I recommend using the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 and then for your 2022 Chevy Equinox with LED lights I recommend the Roadmaster Universal Wiring Kit # RO44FR and 6-Wire Trailer Connector # RM-910030-7. The Jeep doesn't require special diodes so you can use the standard wiring kit and then pair up the umbilical with the special wiring and connector needed for the LEDs on your Chevy. I've...
    view full answer...
  • Parts Needed to Flat Tow 2022 Ford F-150 Hybrid 4x4
    Yes, your 2022 Ford F-150 hybrid with 4-wheel drive can indeed be flat towed, and in order to do so you'll need a number of parts, which I'll go ahead and list for you. - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM38VR - Tow Bar: Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar # RM-676 - Wiring Kit - Incandescent Tail Lights: Roadmaster Universal Wiring Kit with Smart Diodes # RO94FR or - Wiring Kit - LED Tail Lights: Roadmaster Universal Wiring Kit with Smart...
    view full answer...
  • All Parts Needed to Flat Tow 2023 Chevy Equinox
    We can definitely get your 2023 Chevy Equinox set up to be flat towed, and there are a number of parts you will need, so I'll go ahead and list them out for you like you wanted to make it easy to order: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM-523193-5 - Tow Bar: Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar # RM-676 - Wiring Kit - LED Tail Lights: Roadmaster Universal Wiring Kit with Smart Diodes # RO44FR OR - Wiring Kit - Incandescent Tail Lights: Roadmaster...
    view full answer...
  • Recommended Flat Tow Wiring Kit For a 2021 Ford F-150 Lariat with LED Tail Lights.
    I recommend the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights # RO44FR for flat towing your 2021 Ford F-150. These smart diodes are specifically designed to work with the LED tail lights on your F-150. Currently there is not a plug and play version available so the diodes will need to be spliced into the tail light wiring. Your F-150 does require a Battery Charge Line Kit # RM-156-25 be used when you are flat towing. This will keep the battery...
    view full answer...
  • Compatible Base Plate For A 2021 Chevy TrailBlazer Activ AWD
    If your 2021 Chevy TrailBlazer Activ AWD has a 1.3L Turbo engine then you will be able to use the Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM35FR. The RS base plates would not be compatible with your vehicle. As for the difference between Roadmaster and Blue Ox, Roadmaster manufactures all of their equipment in house, in the US, and is top tier in quality. While Blue Ox is a good brand, their quality and customer service comes in second place. Roadmaster's tech service,...
    view full answer...
  • Parts Needed For Flat Towing a 2023 Ford F-150 With Blue Ox Tow Bars and Patriot Braking System
    Yes, you will be able to use your Blue Ox Tow Bar # BX7420 and Blue Ox Patriot Portable Braking System # BLU37TR on your 2023 Ford F-150. But you will need a 12 Volt Outlet Kit # RM-9332 to power the Patriot braking system as the factory 12 volt will not have power when being flat towed. You will need the Blue Ox Base Plate Kit # BLU33FR for your F-150 along with the necessary wiring components. A Charge Line Kit # RM-156-25 is needed as the battery will be drained by your F-150 and the...
    view full answer...
  • Parts Needed To Flat Tow A 2019 Chev Equinox 2.0L AWD
    You're correct that the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar w/ LED Lights # RM-677 is for Blue Ox baseplates and would not be a compatible fit for the Roadmaster Direct-Connect Base Plate Kit # RM-523193-5. You'll instead need the # RM-676 Nighthawk, which is compatible with Roadmaster Direct-Connect style baseplates. The Nighthawk comes with the 6-way to 7-way cable and the socket but you'll still need the diodes and wiring to transfer your motorhome's signals through...
    view full answer...
  • Recommended Base Plate Kit and Flat Towing Parts for a 2023 Chevy Equinox LT
    I checked with Roadmaster and the only base plate kit with removable arms for the 2023 Equinox is the one you were looking at item # RM-523193-5. The only other option is item # RM-523193-4 which is a crossbar style baseplate. There is nothing in their system or ours that has the model number you provided fitting a 2023 Equinox. You will be required to trim some of the shutters to install a base plate kit. I have linked an installation video below. I don't know what an riw plate is and...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Mike S
Written by:
Mike S
Employee Michael B
Installed by:
Michael B
Employee Jacob H
Test Fit:
Jacob H
Employee Ryan G
Test Fit:
Ryan G
Employee John A
Test Fit:
John A
Employee Thomas T
Video by:
Thomas T
Employee Cooper S
Video by:
Cooper S

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