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Roadmaster Brite-Lite Wiring Converter

Item # RM-732

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  • Tow Bar Wiring
  • 3-to-2 Converter
  • Converters
  • Roadmaster

Roadmaster Accessories and Parts - RM-732

Roadmaster Brite-Lite Wiring Converter

The Brite-Lite converts a 3 wire electrical system on a towing vehicle to a 2-wire system on the towed vehicle. Three wire systems use a separate wire to carry the brake signal. Two wire systems have the brake and turn signals sent along the same wire. Lab tests have shown Brite-Lite makes turn signals 65% brighter and brake lights 25% brighter than other brands. Brite-Lite can help prevent rear-end collisions in heavy traffic or under adverse conditions. Heavy-duty aluminum heat sink design effectively dissipates heat and outlasts other brands.

Product Detail

732 Roadmaster Brite-Lite Wiring Converter

RM-732 Installation InstructionsInstallation Details RM-732 Installation instructions

Video of Roadmaster Brite-Lite Wiring Converter

Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.

Video Transcript for Roadmaster Accessories and Parts RM-732 Review

Today we're going to be taking a look at the Roadmaster Brite-Lite wiring converter. The Brite-Lite converts a three wire electrical system on a towing vehicle to a two wire system on the towed vehicle. This unit allows the towed vehicle's lights to work in tandem with the towing vehicle's lights. The unit's going to help increase overall safety on the road. Testing does show that the Brite-Lite makes turn signals and brake lights brighter than other brands. The unit is very reliable.

It's going to feature an anodized aluminum heat sink to effectively dissipate heat, and it's going to use 16 gauge wiring for all the wires on the unit. Now this unit gets mounted on the towing vehicle by using the adhesive backing that's included. The right turn, left turn, and brake light wires on the towing vehicle needs to get connected to the input wires on the converter with butt connectors. Then you'll need to use a ring terminal to connect the ground wire from the converter to a clean metal surface on the towing vehicle. Now the white wire is going to be your ground wire, red wire is your brake wire, the yellow wire is for left turn, and the green wire is for right turn so you want to get these connected again to the wires of the towing vehicle using butt connectors. All the necessary connectors that are needed for your installation are not included, so those will need to be provided separately if you don't already have those. The two wires come out of the other side of the converter. These are going to get spliced into the wiring on the towing vehicle's wiring harness like a four-way flat or a seven-way connector. The yellow is left stop and turn, the green wire is right stop and turn, so once you have those spliced into the wiring harness like your four-way flat or seven-way, when you connect that to the harness on the towed vehicle everything's going to be working properly, the signal's going to be sent through that harness.

Again, this is designed to convert a three wire electrical system on your towing vehicle to the two wire system on the towed vehicle just to insure that the towed vehicle's lights work in tandem with the towing vehicle's lights. Measurements real quick of the actual converter. Going this direction that's going to give us a dimension of three inches. Going this direction it's going to measure about three and one quarter of an inch, and in the depth of the unit from front to back or the thickness is only going to measure about seven eighths of an inch thick. That's going to do it for today's look at the Roadmaster Brite-Lite wiring converter.

Customer Reviews

Roadmaster Brite-Lite Wiring Converter - RM-732

Average Customer Rating:  4.9 out of 5 stars   (22 Customer Reviews)

- RM-732

by: Don S05/20/2015

Great part, great price! And fast shipping!! Thank you!! 194549


Still works great after a year!!

Don S - 05/26/2016

- RM-732

by: Pat E.06/23/2015

I bought this product to connect my lights on my horse trailer to my 95 peterbilt. Wiring was a snap and within 20 minutes all my problems were solved! I highly recommend this product and HIGHLY HIGHLY RECOMMEND buying from!! I went to 3 local trailer dealers ( 2 of them are nationwide brand name manufacturers) and all of them had no clue to convert 3 wire light systems to a two wire. Within 5 minutes of looking on i ordered what I needed and it's history as they say!!! 206744

- RM-732

by: Paul11/28/2014

Installed the Brite-Lite RM-732 wiring converter on a 2006 Volvo semi truck in order to convert the trailer wiring circuit from three wire to two wire for towing smaller trailers for various construction equipment. The device works as described. Instead of only having one brake light wire and L/R turn I now have brake lights combined with the L/R turn signals. Very well constructed converter and helpful sales staff. 162688

- RM-732

by: Em-73203/24/2015

Excellent product. Awesome help by e-trailer. Mounted the converted to frame under Freightliner bed and spliced into existing j-box. Works great. Perfect fit and should last a long time. Thanks, Jason 180523

- RM-732

by: Kelley03/10/2013

My project was converting my 1972 Camaro rear two light system to a three light system from a 1978 Camaro donor wiring system. The original 1972 wiring was missing. Laura was the tech that helped me. She was very knowledgable and patient with me. The RM732 converter was very easy to install and did exactly what in needed for this project. Thanks Kelley Bowin 69858

- RM-732

by: Rich08/16/2016

Works as advertised and easy to use! 2003 Winnebago journey/2014 Jeep Wrangler as the toad! 284222

- RM-732

by: Roy03/20/2017

Received the product in a timely manor and installed it. Every time I hooked the toad all the lights worked the proper way. I only towed with the Motorhome on several trips and I am looking forward to another traveling season. Thanks ETRAILER. 356354

- RM-732

by: richard08/02/2015

purchased a brite-lite wiring converter and went to there web-site for added instructions for easy connection. received my order in 5 days and that was over a week end. happy with there service. 216257

- RM-732

by: Frank B.10/21/2016

This was just what I needed to go with the wiring package that came with my towing bracket. Your website made it very clear; what was needed and how to install it. Thanks! 309476

- RM-732

by: Karla Sumner06/12/2014

We had this installed on our 2012 Chevy Equinox so that we could tow it with our RV. A friend with automobile knowledge did the install for us. It works great. Thanks 135379

- RM-732

by: Robert R.05/06/2014

It was just what I ordered, and just what I needed. It arrived in good time, and that made me happy too. The whole process was perfect. Thank you! 129120

- RM-732

by: Rm 73203/03/2016

I wish the body of the connector was larger to help keep the outer cover inside so the wires are'nt exposed. Thank you Paul b. 239386

- RM-732

by: C & J04/08/2014

This is the second time we have ordered from etrailer and both times they had excellent response time, and a sweet voice to take my order. 124245

- RM-732

by: David Brown01/29/2017

Extemely happy with RM - 732 , wire it up works like it's supposed to , easy installation and instructions, highly recommended 336547

- RM-732

by: John M05/02/2014

Excellant product, worked better than the Hoppi it replaced, now my lights work all the time rather than whenever. 128604

- RM-732

by: Randall L Couk Sr05/30/2012

I had delivery of your product in 2 days and installed the Brite-Lite the next day. It works just fine. Thanks- 42057

- RM-732

by: Gary06/09/2011

Shipping was within a week. Buick Enclave Videos are a great help for installing the tow brackets and wiring. 16628

- RM-732

by: Brett E01/20/2017

Ordered from Canada and order showed up just as pictured and much faster than I had anticipated! Thank you! 333940

- RM-732

by: BB02/12/2012

The Brake-Lite converter fixed the problem and it arrived in a few days! excellent service, thank you. 31621

- RM-732

by: Jack B06/30/2015

Exactly what I needed. After several trips to the Auto parts store, this works great!!! 208385

- RM-732

by: Fred07/12/2015

Works just as described. Used it for a motorcycle sidecar. Worked great. 211159

- RM-732

by: Don W09/17/2016

Thank you for the great service! 295729


Ask the Experts about this Roadmaster Accessories and Parts
Do you have a question about this Accessories and Part?

  • How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
  • Either way is correct. It depends on if you want to keep the semi-style 7-Way (if you need to tow that type of trailer) or if you will never be towing a semi trailer. If you need to keep the 7-Way semi active on the truck then you would need to make an adapter to get it to work with an RV 7-Way. For that you would need a trailer side 7-Way round, # PK11702, a converter, # RM-732, and a vehicle side 7-Way RV style, # PK12707. A semi-7-Way has separate circuits for the brake lights...
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  • Converting Separate Turn Signals and Brake Lights to Combined Turn and Brake Lights on a Trailer
  • If the trailer is one that is pulled by a motorcycle or a trailer designed to carry a motorcycle, you will need a converter in order to convert the wiring system used by the 6-Way to a 2 wire system used by trailer lights. The converter you can use is # RM-732. This takes the separate turn and brake signals and makes them a combined circuit. When you hit the brakes with the turn signal on, it should blink on one side and the other side will remain a solid brake light. The converter will...
    view full answer...

  • Wiring LED Tail Lights with Combined Brake and Turn Signals to a 1985 Toyota Pickup Truck
  • Since your 1985 Toyota pickup is wired for separate turn signals and brake lights you will need to use converter # RM-732 to combine the separate signals. On the input side of the converter the white wire grounds to the frame, the red wire is brake lights only, the green wire is right turn signal only, and the yellow wire is left turn signal only. On the output side you will have a yellow wire for left turn and brake lights and a green wire for right turn and brake lights. The running...
    view full answer...

  • 2001 Chevy Silverado 3500 Tail Lights Not Working and Brake Signal on 7-Way Not Working
  • From what I have been able to find, the 2001 Chevy Silverado 3500 had what is called a 3-wire system. This means the turn signals are separate from the brake lights. If the lights you are using are designed for a 2 wire system then it they will not function properly. There are 2 possible options. First, you can get lights that do have separate turn signal functions. Second you can use a special converter on the truck wiring to take the separate signals and combine them to a 2-wire system...
    view full answer...

  • Using a 2-Wire Trailer Tail Light on a Trailer with Separate Brake and Turn Signals
  • Since you have indicated that you do have separate turn signal and brake light wires on your Scamp trailer, connecting both of those separate wires to the same circuit on the light # STL90RB is probably what is causing all of the problems including back feeding to the truck. What you will need to do is use a special converter on the trailer side, # RM-732. The separate brake and turn signals will go to the input side of this converter which will then combine them for the output side....
    view full answer...

  • Wiring Stop Tail and Turn Signal Lights on a Motorcycle with Separate Turn Signals and Brake Lights
  • So it sounds like on the motorcycle you have working turn signals, brake lights, and tail lights. So you just need the proper converter to go from the separate signals to combined. You can use converter # RM-732. This is a non-powered converter that will take the separate brake and turn signals and combine them. You would attach the bike brake light wire to the red wire on the harness. Attach the motorcycle left turn signal wire to the harness yellow wire. Connect motorcycle right turn...
    view full answer...

  • Combining Brake Lights and Turn Signals to Tow a Trailer with a Honda Gold Wing
  • What are the functions of the wiring harness on the Gold Wing? Use a circuit tester like # 3808 if needed to test its functions to determine what each one does. You should have a ground and running lights for sure. But it is the turn signal and brake signals we are concerned with. What you could do is use a converter, # RM-732. It will take the separate turn signals and brake lights, combine them, and on the output side the signals will be combined to work with the trailer. If you...
    view full answer...

  • No Brake Signal on a 7-Way Round Pole Trailer Connector on an RV r
  • If your RV came with a 7-Way round pole trailer connector then it could be that there are fuses or relays that need to be in place or replaced if present to make the 7-Way fully functional. Check the owners manual to determine the location of any fuses or relays related to the trailer connector. If you hardwired in the trailer connector and the RV has separate turn and brake lights then the brake circuit will not be present with the turn signals on the 7-Way. You would need to covert...
    view full answer...

  • Trailer Brake Lights Do Not Work Using 7-Pole Round to 7-Pole RV Adapter on a Freightliner FL70
  • Big rig types of trucks such as your Freightliner use a different type of 7-Way connector than what is used in the recreational market. The recreational market has brake lights and turn signals combined on the same circuit, one for each side. A commercial truck uses separate circuits for turn signals and brake lights. Basically you will need to convert either the truck or the trailer. Converting the truck is easier especially if you are not going to be towing any big rig trailers. If...
    view full answer...

  • Is there a European 7-Way to US 4-Way Trailer Wiring Adapter for a BMW
  • Bascially, there is no easy way to convert the European 7-Way to a US 4-Way. We do not carry any kind of adapter that you could use. You are left with 2 options. First, you would install a separate wiring harness which would be the easiest. Or, you could attempt to fabricate an adapter. You would need to use a converter, # RM-732. The red wire on the input side would attach to the brake light wire on the vehicle wiring. The white wire grounds to the frame. The yellow wire will attach...
    view full answer...

  • Converting Separate Turn Signals and Brake Lights on a Motor Home to Combined to Use a Light Kit
  • I will be happy to help you out. The separate brake light circuit is going to have to be combined with the turn signals in order to use a light kit with a 4-Pole connector. There is a special converter for this, # RM-732. On the input side you will connect the right turn signal wire to the green lead, the left turn signal wire to the yellow lead, and the brake light wire to the red lead. The converter will properly combine the signals and on the output side you will have green for right...
    view full answer...

  • All Lights Work Except Brake Lights on Trailer Towed by 2013 Kenworth Class 8 Truck
  • Class 8 trucks typically have a different set up 7-Way than passenger vehicles and that could be the issue. Disconnect the trailer from the tow vehicle and use a circuit tester, such as # 3808, to test the pins on the vehicle side connector. Have someone sit in the truck and step on the brake while you test the pins in the 3 oclock and 9 oclock positions. If the brake pedal does not make the tester light up then this is most likely the issue. Trailers that take a 7-Way blade style connector...
    view full answer...

  • How to Make 7-way to 6-Way Adapter for Semi Truck to Gooseneck
  • Your semi-truck is going to have separate turn signals from the stop lights and your gooseneck trailer is going to have combined turn signals and stop lights. This means you would have to build an adapter that has a signal light converter so that your trailer can be towed with your truck. You would need to start with a 7-way male connector part # PK11893 to plug into your semi truck. For wiring you would then want the part # DW04914-1 sold by the foot. Then for the signal converter you...
    view full answer...

  • Can Diodes be Used to Combine Brake Lights and Turn Signals
  • What you need is a converter to take the separate turn and brake light circuits and combine them. You will need converter # RM-732. It will take the separate signals and combine them so on the output side you have a green wire for right turn and brake and a yellow wire for left turn and brake. A diode is just a gate. It cannot discern the difference between the brake signal and the turn signal. So if you were turning left or right and braking at the same time chances are the higher...
    view full answer...

  • Winnebago with Seperate Taillights Towing a Jeep and Troubleshooting Brake Lights not Working
  • Since you have connected your Winnebago to both your Jeep and boat trailer and are experiencing the same issue it is likely related to the vehicle wiring on your Winnebago that is the issue. The first thing that I would check would be the vehicle connection 6-way on your Winnebago and make sure that all the wiring to the connection points are in-tact and that the pins do not show any signs of corrosion or damage. You will want to use a circuit tester like the Quickee # 3808 to test...
    view full answer...

  • Converter Recommendation to Install Combined Taillights on a Flatbed Truck that had Separate Bulbs
  • It sounds like you need to convert the separate wiring of your 1991 Nissan truck to a combined setup to work with the Round LED Taillight # STL42RB. For this you will need to get a Roadmaster Brite-Lite Wiring Converter # RM-732. You will run the wires from your vehicle to the right side of the # RM-732 by function, and then from the left side of the box you will run the corresponding left or right turn signal wire to the red wire of the # STL42RB. The tail light circuit will bypass...
    view full answer...

  • Is a Tail Light Converter Needed to For Tow Bar Wiring on a 2011 Jeep Wrangler Towed by a Winnebago
  • Yes, you will need to install a Roadmaster Brite-Lite Wiring Converter # RM-732 to use this Roadmaster Universal Hy-Power Diode Wiring Kit # RM-154 on your Winnebago Vectra with separate wiring to your 2011 Jeep Wrangler with combined tail lights. Check out the picture I attached to see how it will all wire together when you install these products.
    view full answer...

  • Tow Bar Wiring to Flat Tow a 1996 Geo Tracker Behind a Motor Home
  • You can use a diode kit like # 38955 on your 1996 Geo Tracker but there are several things to consider. First, it looks like your Tracker has turn signals that are separate from the brake and running lights. If this is so then by using a 4 diode kit, all the functions will use the brake/running light bulb and the vehicle turn signals will not be used at all. If the towing vehicle (RV) has separate bulbs as well and no trailer connector, you would either need to use a tail light converter,...
    view full answer...

  • What is the Correct Diode Kit to Flat Tow a 2007 GMC Sierra 1500 New Body Style
  • I show that for a 2007 GMC Sierra 1500 new body style, you will need to use the Roadmaster 4-diode kit, # RM-154. Your truck has a 2 wire system (combined brake and turn circuit) so additional diodes are not needed. There are diagrams on the product page, below the description, for wiring the diodes, and I have also included the pictures here. If the towing vehicle has a combined brake and turn circuit, you will use the first diagram. If the towing vehicle has separate brake and turn...
    view full answer...

  • How to Make a 9 Pin to 7-Way Adapter for Connecting Semi Truck to Trailer
  • I have a solution for you that will allow you to make an adapter, but we do not sell one pre-made. To adapt your 9-pin trailer plug to work with the 7-way connector on the truck, you would need the 9-pin vehicle side connector that you referenced, part # R9CB. A length of 7-wire cable # DW04914-1 from the 9-pin would be tapped into the relevant circuits behind the 7-way, with the two remaining terminals being connected as needed. For a more temporary install, the 9-way R9CB could be...
    view full answer...

  • What Parts are Needed to Flat Tow a 2000 Ford Mustang
  • First, I did some research and found that the manual transmission models of the 2000 Ford Mustang can be flat towed as is but automatic models need a drive shaft coupling to be flat towed. Consult your vehicle owners manual for additional information. If you determine you can flat tow your Mustang you will first need base plates which provide a secure attachment point for a tow bar. For your Mustang you can use XL base plates # 466-1. Please note these base plates will not fit the Cobra...
    view full answer...

  • How to Wire Up a Motorhome 7-Way with a Separate Circuit to a 7-Way with Combined Circuit
  • The # RM-732 is the correct adapter to use to go from a separate taillight system like what you have on your motorhome to a combined system like what is on your tow dolly. For wiring your motorhome with a 7-way you would basically want to follow the wiring directions that are on top of the converter. The right side of the converter is the input side so you will need to test the wiring of your RV with a circuit tester like part # 3808 to determine function and wire it accordingly. You'll...
    view full answer...

  • Wiring a 1999 Jeep Grand Cherokee with Diodes to Flat Tow behind a Motor Home
  • We actually have some helpful diagrams on the product page for the Tail Light Isolating Diode System, # 38955, as well as some videos and an FAQ article that I have linked for you. All of these items should be a big help. When checking the wires on the vehicle to determine function, you will need a circuit tester like # 3808. You will probe the wires behind each tail light to find the turn signal, running light, and brake light wires. You will then wire them into the diodes according...
    view full answer...

  • Is Optronics Sealed Streamline LED Trailer Tail Light Designed to be used with a 4-Wire System
  • The Optronics Streamline LED Trailer Light is designed to be used with a 3 wire system, not a 4 wire. It has 3 wire leads, one for ground, one for tail light and one for a combined brake/turn signal. You can use this, you will just need a converter to bring the system down from a 4 wire to a 3 wire. If this is for a trailer behind your 1988 Toyota pickup, you can use a trailer harness with a built in converter like part # 119179KIT. If this is for some other sort of project you could...
    view full answer...

  • Flat Tow Wiring Recommendation for a 2015 Jeep Cherokee
  • First thing you want to do is test your 7-pin with a circuit tester like part # 3808 to determine if it has separate or combined trailer wiring. Most likely if you have a standard 7-way at the rear of your RV it has combined circuits so that it would be compatible with most trailers. Use the chart I attached to compare what you have to what the standard wiring patterns are. For a diode tow bar wiring kit you would want the # RM-154 and then the 7-way to 4-way adapter part # PK12716. If...
    view full answer...

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Info for this part was:

Photos by:
Jackie C

Expert Research:
Robert G

Expert Research:
Michael H

Expert Research:
Jameson C

Installed by:
Cole B

Updated by:
Sarah W

Photos by:
Stacy F

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