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Roadmaster Universal Hy-Power Diode Wiring Kit

Roadmaster Universal Hy-Power Diode Wiring Kit

Item # RM-152
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Tow Bar Wiring

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Roadmaster Splices into Vehicle Wiring - RM-152
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Diode kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. Wires 2-wire and 3-wire systems to operate as a combined lighting systems. Connectors and Extension loop sold separately. Lowest Prices for the best tow bar wiring from Roadmaster. Roadmaster Universal Hy-Power Diode Wiring Kit part number RM-152 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Roadmaster Tow Bar Wiring - RM-152

  • Diode Kit
  • Splices into Vehicle Wiring
  • Universal
  • Tail Light Mount
  • Roadmaster

Diode kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. Wires 2-wire and 3-wire systems to operate as a combined lighting systems. Connectors and Extension loop sold separately.


Features:

  • Lets you wire your vehicle to accept your RV's tail, brake, and turn signal lights for flat towing
  • Wires towed car as combined system so that brake and turn signals travel along same wire
  • Prevents electrical feedback and the damage it can cause to your vehicle's electrical components
  • Aluminum case protects diodes from the elements
    • Powder coated aluminum is corrosion resistant
  • Includes 4 Hy-Power diodes; 30' long, 4-wire harness; wire connectors; cable ties; 1 ring terminal; and 3' long plastic loom
    • Extension loop for connecting towed car to RV is sold separately
    • Brake light relay (RM-88400 - sold separately) may be required if used with supplemental braking system
  • Limited Lifetime Warranty


Specs:

  • Max amperage: 85 amps
  • Max voltage: 24 volts


Note: For applications that have separate lighting, this kit will cause your brake lights to function as both brake and turn signal lights. A wiring converter (118158 - sold separately) and 2 additional diodes will be needed if you want to retain separate turn and brake signals.


Separate vs. Combined Lighting Systems

Some automobiles operate on a 3-wire system, wherein the brake signal and the turn signals travel along different wires to illuminate different lights. (Typically, these vehicles have amber turn signals.) This is referred to as a "separate lighting system". When you hook up for flat towing using this kit, your towed car's lighting system will operate in a combined fashion regardless of whether it typically has combined or separate lighting. This means that the brake and turn signals sent by your RV to your towed car will be carried on a single wire. As a result, your car's brake lights will do the flashing for the turn signals. Your vehicle will still function as designed when not hooked up to your RV.


Diode Wiring Diagram

Diode Wiring Diagram

Diode Wiring Diagram

Diode Wiring Diagram

Do You Need a Brake Light Relay?

Because this kit wires your vehicle as a combined system, a brake light relay (RM-88400 - sold separately) may be required if you use a supplemental braking system with your towing setup. A supplemental braking system depresses the brake pedal in your towed car every time you apply the brakes in your RV. So, if your towed car's brake lights illuminate when the brake pedal is pressed and the engine is off - as is the case when towing - then you need to install a relay to ensure that the lights on your towed car always act in accordance with the signals sent by your RV via the wiring harness. Without a relay, the brake signal from your towed car will override the turn signal sent by your RV when you slow down to make turns, creating a potential hazard.



152 Road Master Economy Towed Car Wiring Kit with 4 High Power Diodes






Customer Reviews

Roadmaster Universal Hy-Power Diode Wiring Kit - RM-152

Average Customer Rating:  4.9 out of 5 stars   (99 Customer Reviews)

Diode kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. Wires 2-wire and 3-wire systems to operate as a combined lighting systems. Connectors and Extension loop sold separately.

- RM-152
by:

have successfully completed the installation of the following items that I purchased from etrailer: > Nighthawk RM-676 tow bar > RM-524458-5 base plate > DEMCO Stay in play DM86VR > RM-152 diode wiring kit > RM-156-25 charge wire kit > RM-88400 brake switch relay kit I work slow but methodically. I had no issues other than the high degree of difficulty for a 68 y/o man working alone. This project exceeds the abilities of someone NOT mechanically inclined. There is also the need for some specialty tools. I found that feeding the wiring through the dash, firewall, and underbody was more difficult than installing the front baseplate. Overall, I am satisfied with the function of this installation. I am glad I did it myself rather than having it done. Tow vehicle: 2021 Entegra Emblem 36U Towed vehicle: 2018 Ford Fusion Platinum Energi



- RM-152
by:

Just finished installing the “kit”, everything went well, the video on the etrailer web site helped but was slightly different than my installation since it was a 2006 model and mine is a 2012. Should make towing and hooking/unhooking easier and safer than using the magnetic lights. I’m using the Pollack 6 pin connector with the wiring “kit”.


Comments
Works Great, Totally Transparent During Towing or Normal Use
Steve C - 03/04/2020



- RM-152
by:

After one year, one of the components installed in my truck's rear tail light was fried making my tail lights not work (even when not being towed). I called etrailer and told them the situation. JT was very helpful in setting up an appointment and getting the part fixed (under warranty). Slight annoyance followed up with good customer service.



- RM-152
by:

Jamie was very helpful and very knowledgeable. I was also shocked when my parts arrived on my doorstep 28 hours later. Highly recommended!



- RM-152
by:

Easy install by using the etrailer step by step video. Performance is excellent.



- RM-152
by:

I am ‘five star satisfied’ with the products and service I have received from etrailer. Parts are high quality, unlike merchandise I I’ve purchased elsewhere. The customer service is high quality, again unlike others I’ve dealt with. Specifically, I have dealt with Danielle twice and she was fantastic. Pleasant, courteous, knowledgeable and professional. etrailer is lucky to have her on their team.



- RM-152
by:

Great packaging,color instructions with hardware checklist and the videos which were attached to my initial order. All of these are what separate your company from others I have dealt with in the past. Sorry it took me so long to discover etrailer. Looking forward to starting the install. Thank you!



- RM-152
by:

Product worked great on 2020 Jeep Wrangler. Installation video was helpful. No issues. Very straight forward



- RM-152
by:

Am pleased with the diode kit. It will work in making my vehicle towable.


Comments
Works as designed
Joe H - 11/09/2021


- RM-152
by:

First time doing wiring like this. The kit worked fine, it took me 8 hours to install this and a power line to my battery.



- RM-152
by:

Easy for one person to install. Quality product



- RM-152
by:

This kit has worked perfectly for my RV and Jeep Tow setup.



- RM-152
by:

This review is for E-Trailer. I ordered a complete dinghy towing set-up for the dinghy as a towbar came with the RV we purchased. I called E-Trailer and spoke with a very knowledgeable young lady and when I told her what I needed in layman’s terms she came up with what I would need to complete the dinghy preparation in order to safely tow it behind our RV. Everything they said it would do went just as the instructions directed. I ordered a Roadmaster Falcon 2 set up for the dinghy and they suggested a Blue Ox self contained braking system for the SUV itself. hey also suggested the complete wiring system and plug for the dinghy. To my amazement after the RV and dinghy were connected that also was as easy as they said it would be. Our first tow with the dinghy was great and the unhooking was also a very easy experience. This company was awesome to work with. Thank you for your knowledge and great products.



- RM-152
by:

Great products and video’s are greatly appreciated!



- RM-152
by:

This wiring kit saved the day when I had to change flat towed vehicles. Super easy to install and use. I used the install video, which was a great help.



- RM-152
by:

Parts were shipped fast. Instructions and videos helped with the installation. Looks good installed. Will see how it works on the road.



- RM-152
by:

Works great- installed on 2009 Subaru Forester to connect it as a towable behind our motorhome. Cheap universal solution with good directions included.



- RM-152
by:

All parts needed were in stock and ready to be shipped the same day as ordered. Thanks Nicole T.



- RM-152
by:

Just ordered the 152 wiring kit, the brake relay kit and the seat adapter for the brake master tow brake. Arrived early and all was good. Will comment again after I install, but wanted to comment on the ease of purchase and delivery. Christina was great!



- RM-152
by:

Easy to install with the help of the online video. Good quality materials and the kit was complete.



- RM-152
by:

The original kit only lite one light on each side of the truck. I ordered your kit to light up the tail light like normal. Works great and have had no issue. Thanks.



- RM-152
by:

Wiring harness worked out better than a nticipated.


Comments
Excellent
Richard - 10/20/2017



- RM-152
by:

This works great while towing our car.



- RM-152
by:

2020 Ford Escape. Very tight fit and not enough “common” wire to reach the second tail light. Also would recommend including wire loom equal in length to the supplied wire



- RM-152
by:

Excellent customer service


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Show More Reviews

Ask the Experts about this Roadmaster Tow Bar Wiring



  • What Color Are the LEDs That Come With the Roadmaster Tail Light Wiring Kit for Towed Vehicles
    The Roadmaster Tail Light Wiring Kit for Towed Vehicles part # RM-152-LED comes with red LEDs which are needed because with LEDs you must use a bulb color that matches that of the tail light housing in order to get a true color. The bulb type that is used is indeed an 1157 so there would be different intensities based on if the stop or tail lights were activated. Please note, the Replacement LED Bulbs and Sockets part # RM-152-2 are just the replacement LEDs for the Roadmaster Tail Light...
    view full answer...
  • Is There An Installation Video of the Roadmaster Bulb and Socket Kit on a 2017 Ford F-350
    At this time we do not currently have a video of the installation process of the Roadmaster # RM-152-LED kit on a 2017 Ford F-350, but as soon as we do get an opportunity to make one we will certainly be looking to take advantage. To install a Roadmaster Bulb kit like the # RM-152-LED you'll need to remove the tail light housing on your vehicle and just choose the best spot for a 1" hole to be drilled without interfering with any of the other lights or wiring components. You could potentially...
    view full answer...
  • Replacement Diodes for Roadmaster Diode Kit
    You can replace the diodes from the Roadmaster Hy-Power Diode Kit # RM-152 with the Roadmaster Hy-Power Diodes (Qty 4) # RM-794, which come in a pack of 4.
    view full answer...
  • Troubleshooting Brake Light Failures When Flat Towing A 2019 Buick Envision
    The Roadmaster Even Brake Portable Supplemental Braking System # RM-9400 wouldn't affect your brake lights in that manner. You most likely have a short or loose connection in the tow bar wiring which is causing the turn signal to work but not the brake light. You'll need to check all of the wiring running from the tail lights to the 4 or 6 wire port you have on the front of your 2019 Buick Envision for any shorts, kinks, or brakes in the wires or a complete disconnection of any wires. Your...
    view full answer...
  • Parts Needed for Roadmaster Invisibrake and Tail Light Wiring Kit for a 2016 Chevrolet Sonic
    You need to have a diode kit installed regardless of which braking system you are using, this is what lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system so that your brake lights and turn signals illuminate. This is a requirement for flat towing. You can use the Roadmaster Tail Light Wiring Kit for Towed Vehicles # RM-152-LED to accomplish this. You will also want the Roadmaster FuseMaster Fuse Bypass # RM76511 which replaces your Chevrolet...
    view full answer...
  • Will Roadmaster LED Tail Light Bulb and Socket Wiring Kit Work with Incandescent Bulbs on an RV
    Yes, but, your RV likely has a trailer connector on it already and that connector is not tied into the RV tail light wiring so it would not affect Roadmaster Tail Light Wiring Kit for Towed Vehicles - LED Bulb and Socket - Red Item # RM-152-LED. Even if the RV did have a connector that was spliced into the tail light wiring on the RV this kit would still work for you! I have included a link to a video showing an example installation on a 2017 Chevy Spark.
    view full answer...
  • Will the Roadmaster Tail Light Wiring Kit # RM-152-LED Provide All Lighting Functions
    Yes, the Roadmaster Tail Light Wiring Kit for Towed Vehicles, # RM-152-LED, will operate tail, stop, and turn signals with one LED blub per side of the vehicle.
    view full answer...
  • Is There a Specific Location to Install the Wiring Kit # RM-152-LED on a 2017 GMC Sierra 1500
    The 1" hole for the Roadmaster Tail Light Wiring Kit # RM-152-LED isn't actually very specific. Just as long as you have enough room for the LED bulb. I wish I could be a little more specific but we have never installed this kit on a 2017 GMC Sierra 1500 ourselves (as of Sept 2018) so we don't have an exact video to reference and the installation instructions are very generic. I have linked installation videos on a 2016 GMC Terrain and a 2003 Toyota Tacoma so you can get an idea of where...
    view full answer...
  • Tow Bar Lighting Kit Recommendation for 2006 Saturn Vue
    We checked with Roadmaster and the LED bulb and socket kit you like part # RM-152-LED is a confirmed fit and will work great! We actually had the chance to install this kit on a similar 2007 Saturn Vue that I attached an install video that covers.
    view full answer...
  • Roadmaster Bulb And Socket Tail Light Wiring Kit Functionality
    If you're wanting to install a bulb and socket kit like the Roadmaster Tail Light Wiring Kit for Towed Vehicles # RM-152-LED to bypass your vehicle's wiring you could. The bulbs in this kit are designed to be placed in your tail light housing next to your vehicle's bulbs and the wiring run to the 6-wire port at the front of your vehicle to connect to your RV with. If you're meaning that you want to replace the bulbs in your vehicle then no, you would not be able to use the # RM-152-LED...
    view full answer...
  • Diode lighting Kit Needed For Flat Towing A 2020 Jeep Gladiator With LED Lights
    Since you have LED tail lights the Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Wire to 6-Wire Straight Cord Item # RM-152-98146-7 will not work. Instead you'll need the Roadmaster Tail Light Wiring Kit w/ 7-Way to 6-Wire Connector - LED Bulb and Socket - Red Item # RM-152-LED-7.
    view full answer...
  • Bulb and Socket Kit for Flat Towing that Uses LED Bulbs
    There is an LED bulb and socket that you can use for flat towing. It is # RM-152-LED. The LEDs are red which work better than white lights if behind a red lens. I have linked a video showing an example installation for you.
    view full answer...
  • Is Brake Lite Relay Needed When Installing Bulb and Socket Kit on 2009 Ford Escape Hybrid
    Yes, since your braking system presses the brake pedal of your 2009 Ford Escape and the brake lights come one with the ignition off you need to use a brake lite relay part # RM-88400 so that the LED bulb and socket kit part # RM-152-LED turn signals will still work when the brakes are applied.
    view full answer...
  • Bracket For Mounting Roadmaster Diode Kit on 2019 Chevy Colorado
    I have added a photo for you from a linked video showing you the mounting location we used on a 2019 Chevy Colorado for the Mount Bracket, Long # 18136. If you go to about the 1:15 mark of the linked video, it talks about using the mounting bracket on the Colorado when installing the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267.
    view full answer...
    Image 1 for
  • Tow Bar Lighting Recommendation for 2014 Honda CR-V
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached an install video for this on a similar 2014 Honda CR-V for you to check out as well.
    view full answer...
  • Tow Bar Wiring Recommendation for 2016 Ford F-150 with Backup Sensors in Taillights
    You can certainly use diodes, as you referenced, to install towed vehicle wiring on your customer's vehicle. To wire the 2016 Ford F-150 with the back-up sensors in the taillights I recommend using a Roadmaster Diode Kit, like the Roadmaster Diode 7-Wire to 4-Wire Flexo-Coil Wiring Kit # RM-15247. I confirmed with my contact at Roadmaster that the diode kits will not interfere with the sensors in the taillights. This kit includes the 4 diodes needed to wire the taillights for use while...
    view full answer...
  • Flat Tow Lighting Recommendation for a 2002 Chevy Tracker
    Sounds like you are looking for tow bar lighting so that the taillights of your 2002 Chevy Tracker will operate the same as your GMC tow vehicle. For lighting you can use the diode kit, # RM-152, and not have to worry about cutting into the taillight housing. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to...
    view full answer...
  • Tow Bar Lighting Recommendation for a 2004 Toyota Tacoma
    For lighting for your 2004 Toyota Tacoma you can use the diode kit, # RM-152, and not have to worry about cutting into the taillight housing. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. The front turn signals will not be activated when using this setup.
    view full answer...
  • Flat Towing Wiring Recommendation for a 2012 Mini Countryman
    For lighting for your 2012 Mini Countryman you can use the diode kit, # RM-152, and not have to worry about cutting into the taillight housing. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached a link to a page that has several help articles on tow bar lighting options as well.
    view full answer...
  • Tow Bar Wiring Recommendation for a 2007 Honda Civic
    This is a good question, but you would need tow bar wiring to activate the taillights of your 2007 Honda Civic. You can not use trailer wiring in reverse as this could damage the vehicle's taillight circuits. For lighting you can use the diode kit, # RM-152, and not have to worry about cutting into the taillight housing. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector that you will install on the front of...
    view full answer...
  • Flat Towing Wiring Kit Recommendation for a 2007 Subaru Outback Wagon
    For tow bar lighting for your 2007 Subaru Outback Wagon you can use the diode kit, # RM-152, and not have to worry about cutting into the taillight housing. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached a help article on tow bar lighting options for you to check out as well.
    view full answer...
  • Flat Tow Lighting Recommendation for a 2016 Toyota Corolla
    For tow bar wiring for your 2016 Toyota Corolla that will allow you to control the rear taillights of the vehicle with your tow vehicle you would want the diode kit, # RM-152. With this kit you would not have to worry about cutting into the taillight housing. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to...
    view full answer...
  • Adding Tow Bar Wiring to 2018 Toyota Camry Being Towed on a Dolly
    You can add lights to your Camry that is on a tow dolly, but there isn't a conversion kit or anything of the sort. The only thing that you can do is add tow bar wiring such as the Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152, cutting off the 4-way from the tow dolly and connecting all of the wires inside a junction box like # 38656. I have added links below to some video reviews of these parts for you to check out as well if you'd like.
    view full answer...
  • Can Diode Tow Bar Wiring Install on Vehicle with T-One Trailer Wiring
    Since the Tekonsha trailer wiring kit part # 118727 installs between the taillight connector and the factory wiring you'd install your diode kit tow bar wiring like part # RM-152 on the factory taillight wiring and it would not interfere with operation of the trailer wiring.
    view full answer...


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