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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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Roadmaster Splices into Vehicle Wiring - RO94FR
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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 800-298-1624 for expert service.
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  • Reviews (8)
  • Q & A (10)
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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:  4.9 out of 5 stars   (8 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.

- RO94FR
by:

Very good installation it does an awesome job



- RO94FR
by:

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



- RO94FR
by:

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



- RO94FR
by:



- RO94FR
by:



- RO94FR
by:
2021 Jeep Wrangler



- RO94FR
by:
2020 Jeep Wrangler



- RO94FR
by:
2021 Chevrolet Equinox


8
8

Ask the Experts about this Roadmaster Tow Bar Wiring

  • 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...
  • 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...
    view full answer...
  • Do Miles Rack Up While Flat Towing a 2019 Chevrolet Spark
    The 2019 Chevrolet Spark should not rack up miles while being towed but you can confirm with the manufacturer. In order to tow the car assuming it has a manual transmission you will need a number of components such as base plates, a tow bar, safety cables, supplemental braking system, and flat-tow wiring harness. I have attached a list of recommendations for you as well. Roadmaster Direct-Connect Base Plate Kit part # RM-523197-5 (LT Models) Roadmaster Direct-Connect Base Plate Kit...
    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...
  • 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 Parts/Accessories for Flat Towing 2020 Chevy Spark Behind Motorhome
    If your 2020 Spark is equipped with a manual transmission it can be flat towed, otherwise you'd need to use a tow dolly like # RM-2050-1. To flat tow the vehicle, you'll need a tow bar, base plates, safety cables, a wiring harness to join the motorhome taillight circuits to those of the car being towed, a supplemental braking system and possibly a high/low adapter depending on the height of the receiver on your motorhome. For a towbar, you cannot go wrong with the Falcon All Terrain,...
    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...
  • 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...
    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...
  • 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...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
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Joshua S
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Jacob T
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Dustin K
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Ryan G
Employee Clayton O
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Clayton O
Employee Mike S
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