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

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

Item # RO94FR
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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. Lowest Prices for the best tow bar wiring from Roadmaster. Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights part number RO94FR can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
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Roadmaster Tow Bar Wiring - RO94FR

  • 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, incandescent 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 incandescent lights only. If your vehicle has LEDs, you'll need to use the smart diode kit designed for LED tail lights (RO44FR - 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


153782 Roadmaster Wiring Kit with Smart Diodes for Variable Volt and Incandescent Bulbs

Installation Details RO94FR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights - RO94FR

Average Customer Rating:  4.8 out of 5 stars   (18 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.

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Video (2020 Equinox) easy to follow. Passenger side wiring was TIGHT after making the butt connection from the light wiring TO the diode pack. I suggest adding additional wiring to this junction before connecting to the diode pack. Good use of GREEN wiring in kit, pay attention to video.




by:

very nice unit. Easy to install and top quality product




by:

The sales and support folks where very knowledgeable. They were very helpful getting the parts I needed and shipped very quickly. I would recommend them and will be using them again in the future. Thanks again.




by:

Easy install, even easier to hookup, and looks great when not in use / barely know it's there.




by:

It was professional installed. It works as describe no issues




by:

I installs this in a couple of hours. Your videos are great help in making installing easier.




by:

Very good installation it does an awesome job




by:

Haven’t installed yet, did appreciate the quick arrival of the ordered items.




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2021 Chevrolet Equinox




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2021 Jeep Wrangler




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2020 Jeep Wrangler




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2021 Chevrolet Equinox



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See what our Experts say about this Roadmaster Tow Bar Wiring



  • 3rd Brake Light for 2021 Chevrolet Equinox
    You've not wired anything wrong, the Roadmaster Universal Wiring Kit,, # RO94FR like most all kits, is not setup to support the third brake light. To do so would require additional wiring and diodes and since the third brake light is not required by law, it is not supported. You are good-to-go and ready to tow.
    view full answer...
  • What Type of Diode Tow Bar Lighting Kit is Needed for 2018 Chevy Equinox
    You are correct. Your 2018 Chevy Equinox does require the smart diode style of Roadmaster tow bar wiring part # RO94FR as the standard style in the # RM-15267 would not work. I attached an install video for this kit on a similar 2019 Chevy Equinox as yours for you to check out as well.
    view full answer...
  • Recommended Compatible Wiring Tow Bar Wiring Harness For A 2018 Chevy Equinox
    Hopkins manufacturing doesn't currently have a compatible wiring harness for your 2018 Chevy Equinox so instead I recommend the Roadmaster Universal Hy-Power Diode Wiring Kit Item # RM-154 if you have the Premier edition or the Roadmaster Universal Wiring Kit with Smart Diodes Item # RO94FR if you do not have the Premier edition. Both of these kits are a one time install that will require you to splice into your vehicle's wiring and will allow your RV's stop and turn signals to also display...
    view full answer...
  • Tow Bar Wiring For 2022 Chevy Spark For Use With Brake Buddy Stealth Braking System
    The part you mentioned is a wiring kit for a trailer connector, and won't give you the necessary compatible connections at the front of your 2022 Chevy Spark to work with the Brake Buddy Stealth Supplemental Braking System # HM39530. In fact, since your '22 Spark uses variable voltage tail lights (where all of the signals are sent down a single wire), you'll need a specific tow bar wiring kit, the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail...
    view full answer...
  • Correct Roadmaster Universal Diode Wiring Kit for a 2019 Chevrolet Equinox
    The correct Roadmaster Universal Diode Wiring Kit for a 2019 Chevrolet Equinox is part # RM-154 for Premier models or part # RO94FR for all of other models. The diodes can be purchased separately for each, part # RM-794 for Hy-Power or part # RO34FR for Smart.
    view full answer...
  • Correct Wiring Kit for Flat Towing 2018 Chevrolet Malibu
    The wiring kit you need in order to flat tow your 2018 Chevrolet Malibu is the Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights # RO94FR. Since this does not come with a connector you can use the RoadMaster 6-Wire Trailer Connector - Vehicle End # RM-910030-7. Be sure to consult your vehicle owners manual for specific information on flat towing the vehicle. I have attached some installation videos for your reference.
    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...
  • Can 2019 Chevy Sonic RS be Flat Towed
    Yes your 2019 Chevy Sonic turbo can be flat towed with the Blue Ox base plate kit part # BX1703. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your vehicle. The most popular compatible tow bar is the Blue Ox # BX7420. This has non-binding arms which makes the setup very easy to connect/disconnect. For lighting you'd want the part # RO94FR. The diode kit that comes with this allows you to splice into...
    view full answer...
  • Can You Use The Blue Ox Tow Bar Wiring Kit On A 2021 Jeep Wrangler Ulimited
    For your 2021 Jeep Wrangler Ultimated, you can use either the Blue Ox Tow Bar Wiring Kit # BLU79FR you mentioned, rather than the Roadmaster Wiring Kit with Smart Diodes # RM47ZR. If you choose not to use # RM47ZR and you use # BLU79FR you will not need any additional wiring as this is a plugs into your vehicle's harness. If you choose to use # RM47ZR, then you may need the Roadmaster Brake-Lite Relay Kit # RM-88400 if you use this kit with a supplemental braking system. If your vehicle...
    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...
  • What Parts do I Need to Flat-Tow My Manual 2021 Chevy Spark LT when Using the Nighthawk # RM-676?
    In order to use the Roadmaster Nighthawk Tow Bar # RM-676 on your 2021 Chevy Spark LT with manual transmission without ACTIV, I recommend the following parts: - Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-523202-5 - Blue Ox Patriot 3 Radio Frequency, Portable Braking System # BRK2019 (required by law in most states) - Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights # RO94FR You will not need safety cables and tow bar...
    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 3 Portable Braking System, # BRK2019 along with, Brake-Lite Relay, # RM-88400 and Battery Charge Line Kit, # RM-156-25 The Roadmaster Direct-Connect...
    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...
  • Can I Flat Tow a 2020 Chevy Sonic LT with Automatic Transmission and What Parts Do I Need
    From what I was able to find in the owner's manual for the 2020 Chevy Sonic LT, it does appear that this vehicle can be flat towed; there is a note that explains the following procedure for the models with an automatic transmission: "When dinghy towing a vehicle with an automatic transmission, the vehicle should be run at the beginning of each day and at each RV fuel stop for about five minutes. This will ensure proper lubrication of transmission components"- As long as these procedures...
    view full answer...
  • Flat Tow Wiring Kit For 2022 Chevy Tahoe Premier
    There is a flat tow wiring kit for your 2022 Chevy Tahoe Premier (which is what I think you meant as there isn't a Premium), but the Hopkins # HM56115 does not fit the Premier models. Your '22 Tahoe has variable voltage taillights, which means multiple electrical signals are on a single wire, so it needs a specific wiring kit: - Roadmaster Universal Wiring Kit with Smart Diodes for Variable Voltage Incandescent Tail Lights # RO94FR The # RO94FR moderates the voltage correctly so that...
    view full answer...
  • Complete Roadmaster Flat Towing Parts List For 2021 Ford F-150
    Sure thing, we can get your 2021 Ford F-150 set up to be flat towed with parts from Roadmaster. I'll list out all the parts you need to make it simple to order: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM38VR - Tow Bar: Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar # RM-676 - Wiring Kit (For LED Lights): Roadmaster Wiring Kit w/ Smart Diodes for Variable Voltage LED Tail Lights # RO44FR or - Wiring Kit (For Incandescent Lights): Roadmaster Wiring Kit w/ Smart...
    view full answer...
  • Parts Needed to Flat Tow 2020 Chevy Equinox
    You are off to a great start for all of the parts needed to flat tow your 2020 Chevy Equinox. The Blue Ox base plate kit part # BX1730 is a confirmed fit for your vehicle and the tow bar part # BX7380 would work well with it and is easy to use as well. The braking system part # SM99251 is our installers favorite kit as it's easy to use and also works really well. The charge line part # RM-156-25 will keep the battery of your vehicle topped off as well. And then since you do not have a...
    view full answer...
  • Parts Needed to Flat Tow 2020 Chevy Sonic
    Your 2020 Chevy Sonic is indeed equipped with an eye bolt that can be screwed into an integrated socket at the front of the vehicle, however this should only be used to help pull the car up onto a flat bed or trailer when it's disabled. This is not designed for actually towing the vehicle and should not be used as such. If you take a look at your copy of the Sonic's owner's manual you can find a more detailed section on this starting on page 264. In order to flat tow your vehicle you...
    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...
  • Are Curt Base Plates on 2018 Chevy Equinox Compatible With Roadmaster Falcon 2 Tow Bar
    I reached out to Curt, who said you can use the Curt Custom Base Plate Kit # C28FR with your 2018 Chevy Equinox and the Roadmaster Falcon 2 Tow Bar # RM-520 so long as you use an adapter designed for Blue Ox base plates. So what you need is the Roadmaster Tow Bar to Blue Ox Brackets Adapter # RM-031. As far as the wiring kits on your '18 Equinox (excluding Premier) the LED and standard bulb and socket kits, which are the Roadmaster Tail Light Wiring Kit for Towed Vehicles - LED Bulb and...
    view full answer...
  • Parts Needed To Flat Tow 2021 Chevy Spark
    There are five primary components you need for a safe flat towing setup. These are (1) Base Plates that mount to the front of your 2021 Chevrolet Spark and provide the mounting point between the Spark and the motorhome for the (2) Tow Bar. You will also need (3) Safety Cables in case a failure of the Tow Bar occurs, this is required by law. The indicator lights between the RV and the towed vehicle will need to be connected with (4) an Electrical Wiring solution. And (5) a Supplemental...
    view full answer...
  • 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...
    view full answer...
  • Can a Battery Disconnect be Used When Flat Towing 2022 Chevrolet Equinox
    According to the owner's manual for the 2022 Chevrolet Equinox, it is required to charge the battery of the towed vehicle during recreational vehicle towing. Disconnecting the battery is safe, but there would be no reason to add a battery disconnect. You will, however, want to use the Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25. If your motorhome does not already have a charge line kit you will also need the Roadmaster Battery Charge Line Kit for Motorhomes # RM-156-75....
    view full answer...
  • Recommended Flat Towing Equipment For A 2020 Chevy Equinox LT
    There was a fitment issue in the past but I called Demco to confirm that the Demco Tabless Base Plate Kit - Removable Arms Item # DM9519332 would fit with your 2020 Chevy Equinox LT and was informed you should have no issues. To flat tow your 2020 Chevy Equinox LT you'll also need a tow bar, tow bar wiring kit, braking system, and safety cables. I have the following recommendations for you below: Tow Bar: etrailer SD Non-Binding Tow Bar - RV Mount - 2" Hitch - 6,000lbs Item # e34ZR....
    view full answer...


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Info for this part was:

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