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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: $135.21
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 (36)
  • 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   (36 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:

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:
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:

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



by:

Fast delivery



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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:

Everything we ordered worked perfectly.



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



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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

  • Diode Wiring Needed To Flat Tow A 2023 Ford Bronco
    Hey Matt. The Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152 would work for your 2023 Ford Bronco unless you have variable voltage tail lights. Variable voltage tail lights use the same wire for the brake signal and running lights instead of the standard turn/brake wire setup. To determine if you have variable voltage tail lights you'll need to pull the tail light out to get to the wiring and test wires with a probe tester # PTW2993 in order to see if the same wire powers both...
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  • 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...
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  • 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...
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  • 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,...
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  • 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.
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  • 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...
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  • 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...
  • 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...
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  • Difference Between Roadmaster Direct-Connect & Crossbar-Style Base Plates on 2021 Ford F-150
    The difference between the Direct-Connect # RM38VR and Crossbar-Style # RM58VR that fit your 2021 Ford F-150 is the type of tow bar that they accept, and the ease of connection. The direct-connect base plates allows you to simply connect your tow bar right to the base plate, eliminating the need for a middle man - the crossbar - so it is definitely the route I recommend: - Roadmaster Direct-Connect Base Plate Kit # RM38VR Along with the base plates, there are a number of other things...
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  • 2024 Chevy Equinox Base Plate Kit and Wiring to Match up with Blue Ox Tow Bar
    Hey Joe, thanks for reaching out! Since you already have the Blue Ox tow bar you'll want the Curt Custom Base Plate Kit # C28FR for your 2024 Chevy Equinox because it matches up directly with your tow bar. Then for wiring I recommend the Roadmaster wiring which is part # RM26FR for an LS or LT and then part # RM38FR for a Premier. If you already have a 6-Way to 7-Way adapter then you need parts # RO94FR and # RO44FR respectively. It looks like you'll also need to disconnect your battery...
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  • Parts Needed to Flat Tow 2022 Chevrolet Equinox
    Yes, I suggest the Roadmaster Direct-Connect Base Plate Kit, # RM-523193-5. This fits all trim levels WITHOUT lower active grill shutters. For a Blue Ox Base Plate Kit, you can use # BX1730. For a complete flat tow arrangement for a 2022 Chevrolet Equinox, you will need a base plate kit, safety cables and a wiring solution to synchronize your RV’s lights to the Equinox. You will also need a supplemental braking system to synchronize your RV and towed vehicle's brakes. Once the selected...
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  • 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...
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  • Will the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Work on a 2015 Ford Edge SEL
    I do have an option but the Hopkins Custom Tail Light Wiring Kit part # HM56011 will only fit the 2015 Ford Edge Sport/Titanium, not the 2015 Ford Edge SEL. The 2015 Ford Edge SEL has variable voltage taillights which is where the issue lies. Therefore, you will need to use the Roadmaster Wiring Kit part # RO44FR which requires splicing. There are no plug and play flat-tow wiring harnesses for a 2015 Ford Edge SEL unfortunately. I have attached some other parts you might need as well below. Roadmaster...
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  • Recommended Parts to Flat Tow a 2021 Chevy Tahoe Premiere
    I would be happy to! To flat tow your 2021 Chevy Tahoe Premiere you will need the following parts: Tow Bar and Safety Chains - Roadmaster Sterling Tow Bar item # RM-576 Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable Arms item # RM59VR Battery Disconnect - Roadmaster Battery Disconnect with Switch item # RM-766 Wiring Harness - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit for LED's item # RO44FR or Item # RO94FR for Incandescent Lights Supplemental...
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  • 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...
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  • Parts Needed to Flat Tow 2022 Chevrolet Equinox LS
    To flat tow your 2022 Chevrolet Equinox LS, you will need a base plate kit installed on your Equinox and a tow bar to connect it to your RV. Safety cables are a needed item in case the tow bar fails. And a wiring solution to synchronize your RV’s lights to the 2022 Chevrolet Equinox along with a supplemental braking system to synchronize your RV and towed vehicle's brakes. Once the selected base plate is installed and the tow bar attached to your RV it needs to be +/- 3" of being level...
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  • 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...
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  • All Parts Needed to Flat Tow 2020 Chevy Equinox Premier AWD
    Yes, you sure can flat tow your 2020 Chevy Equinox Premier AWD, and there are a number of parts needed for your vehicle, which I'll go over for you. - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM-523193-5 - Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522 - Safety Chains: Roadmaster 80" Coiled Safety Cables # RM-653 - Wiring Kit - For LED Tail Lights: Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights # RO44FR OR -...
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  • Best 2024 Ford Maverick Hybrid Parts for Flat Towing Behind a 2023 Tiffin Phaeton Motorhome
    I'd be more than happy to help you get your 2024 Ford Maverick Hybrid ready to tow, Bruce! Here are the parts I recommend using: - Roadmaster Direct-Connect Base Plate Kit # RM97RR - Nighthawk All-Terrain Tow Bar w/ LED Lights # RM-676 - Light Kit # RO44FR for LED Tail Lights OR # RM-154 for Standard Tail Lights - Battery Charge Line Kit # RM-156-25 - Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes # DM55MV - High-Low Adapter (see attached article - base plate height...
    view full answer...
  • Recommended Flat Towing Setup for a 2022 Ford F-150
    It sounds like you're looking for a complete flat towing setup for your 2022 Ford F-150. If that's what you're after, you're going to need: -A base plate kit, # BLU33FR, -The Blue Ox Avail # BX7420 you mentioned you wanted to use, -The Demco Air Force One # SM99243 you also mention in addition to the Roadmaster Brake-Lite Relay Kit for Towed Vehicles # RM-88400, & -A wiring harness # RO44FR with the charge line kit # RM-156-25.
    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 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...
  • 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...
  • 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...


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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:
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Employee Cooper S
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Cooper S

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