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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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RM-152 - Diode Kit Roadmaster Splices into Vehicle Wiring
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  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Tail Light Mount
  • Universal
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 800-298-8924 for expert service.


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  • Reviews (5)
  • Q & A (97)
  • Videos (34)
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Roadmaster Tow Bar Wiring - RM-152

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


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







Video of Roadmaster Universal Hy-Power Diode Wiring Kit


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Roadmaster Tow Bar Wiring - Splices into Vehicle Wiring - RM-152 Review

Today we're going to take a look at the Roadmaster Universal High Powered Diode wiring kit. This part will let you wire your vehicle to accepts your RV's tail, brake, and turn signal lights for flat towing. This will wire the towed car as combined systems so that the brake and turn signals will travel along the same wire. This will also prevent electrical feedback and the damage that it can cause to your vehicle's electrical components. The diodes right here are powder coated aluminum case which is nice corrosion resistant case. Does provide protection from the elements. Now if this part is used with supplemental braking system it may require a brake light relay which we sell separately on our website. Part number RM-88400.

This part includes everything shown here on the table. The four high powered diodes. The 30 foot long four wire harness. All the wire connectors and cable ties you'll need. A nice three foot long plastic loom to go over the wiring.

And a nice set of detailed instructions that will describe how to install this on your vehicle. A few specs on this. The diode max amperage is 85 amps. The diode max voltage is 24 volts. One last note on this part is for applications that have separate lighting this kit will cause your brake lights to function as both brake and turn signal light, so you do need a wiring converter and two additional diodes that we sell separately if you want to retain separate turn and brake signals. The wiring converter would be part number 118158 and the diodes are part number RM-792. That should do it for the review on the Roadmaster Universal High Powered Diode wiring kit..


Customer Reviews

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

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

Product was as flat 4 wire , needed more cable housing,connectors on diode could be better, however wire length was perfect. Video was great help 643838



- 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”. 609988



- 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! 579770



- RM-152
by:

works very well 337630



- RM-152
by:

Wiring harness worked out better than a nticipated. 309163


Comments

Excellent

Richard - 10/20/2017

29642
6
6

Ask the Experts about this Roadmaster Tow Bar Wiring
Do you have a question about this Tow Bar Wiring?


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  • Whether you have a 2016 Ram 1500 or a 2017 Ram 1500 we have exactly what you need! A complete flat towing setup includes a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and typically a high-low adapter. If you go with a Big Horn, Laramie/Laramie Longhorn, Tradesman, or Limited I recommend the base plate kit # RM-52289-5. For a Rebel model I recommend part # RM-52299-5, and for a Sport or Express model I recommend part # RM-298-3. Then...
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  • Since your Chevy Tahoe weighs more than the weight capacity of the hitch on your motorhome I can only recommend you upgrade the hitch to a higher capacity one and make sure that your motorhome has the capacity to tow the weight of your Tahoe. To flat tow your Tahoe you will first need to start with a base plate kit. For that you would want the pat # 3154-1 which has been confirmed as a fit. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting,...
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    view full answer...

  • Recommended Complete Flat Tow System for 2013-2014 Ram 1500
  • For your 2013 or 2014 Ram 1500, the first thing you need for your flat towing set-up is the baseplate. I recommend the Roadmaster EZ5 Base Plate Kit # RM-52289-5 unless you have the Sport or Express model in which case I recommend the Roadmaster MX Base Plate Kit # RM-298-3. Then for your tow bar I recommend the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar w/ LED Lights # RM-676. This tow bar comes with a wiring connection from 7-way to 6-way and has LEDs for better visibility....
    view full answer...


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Info for this part was:

Test Fit:
Joe V
Video by:
Andrew K
Edited by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Jameson C
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Kathleen M
Video Edited:
Dustin K
Test Fit:
Randy B
Video Edited:
Chris R
Photos by:
Zach O
Test Fit:
Jared G
Written by:
Amanda M
Video by:
Zach D
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Video by:
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Test Fit:
Robert C
Video by:
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