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Tow Bar Wiring > Splices into Vehicle Wiring > Diode Kit > Universal > Tail Light Mount > Hopkins


Tail Light Isolating Diode System with Wiring Harness

Hopkins Tow Bar Wiring

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Code:   38955

Retail:$34.90

Price:$32.60


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Shipping Weight: 2 pounds

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Hopkins Tow Bar Wiring - 38955

Allows motorhome or R.V. to power the lights on the towed vehicle without power feedback.

Features:

  • Includes 4-pole flat trailer connector.
  • Max amperage per diode: 3 amps
  • Max voltage: 24 volts
  • Wire lead: 35' long
    • White ground wire measures 42" long.
  • Wire configuration:
    • Brown: Left side running lights
    • Small green wire: Right side running lights
    • Yellow: Left side turn and brake lights
    • Thick green wire: Right side turn and brake lights


31821

Please note - 3 wire system on towed vehicle: If the towing vehicle has a 3 wire system, where the brake signal is sent along a separate wire from the turn signals, then a wiring converter (118158) and 2 additional diodes are needed to retain separate amber turn signals. If you only use this diode kit (38955), then the vehicle brake lights will function as brake and turn lights.















38955 Tail Light Isolating Diode System with Wiring Harness







Video of Tail Light Isolating Diode System with Wiring Harness


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

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Video Transcript for Tail Light Isolating Diode System Demonstration

This part is for a vehicle to vehicle towing kit. What this basically does is, say you have an RV or motor home or pickup truck and youre going to towing another vehicle on all four wheels youre going to need this wiring harness to make the lights on the towed vehicle work with the towing vehicle. Well start by showing you the different components of this kit, its really pretty simple if you break it down. First the connection here is a traditional four pole flat. So you have your four basic signals, your ground, running lights, left turn and right turn. You also have plenty of harness to attach this on the towed vehicle. When you make your connections on the towed vehicle itself, you have to install these diodes here. At the point where you make your connections on your vehicle whether it be your left or right turn or the running light circuit you will have to install these diodes.

To give you a couple of quick notes about these, what happens is they do go in a specific direction in the wiring harness. to keep it simple basically the single prong here is listed as out, that goes onto the taillight itself out to the bulb. Then you get the two inputs here, one of the inputs is going to be the wire you just cut because youre going to splice this in between the two. It does not matter which one, the wire is going to come in one side and out the other. This other pin here is going to provide input from your trailer harness coming from the towing vehicle itself. So for instance you would take your green wire here and run it to the other open end and it will go out and power your taillight being towed down the road by the RV. As you can see theres 4 diodes and theres a reason for that. Theres going to be one for the left and right turns, and both turn signals are going to have there accompanying running lights. So youre going to need a diode for each of the running lights. Now weve opened up a small bag of parts which contains all the spade connectors needed to do the install. Basically what these are, you cut your wire that you need and you splice the wire back and expose about a quarter inch or so of it and these get crimped on. Be sure you have the right tool to do that with because it makes all the difference in the world with a tight connection and loose connection. Once you do that, it just slides onto the diode prong itself. You may also want to invest in some dielectric grease that will protect it and keep things out that would cause corrosion which would eventually cause an open circuit. As one final note you may want to take into account, if your towed vehicle has the same turn signal and brake light bulb, this kit is for you. If you have separate stop lights and turn signals, say for example your turn signals are amber that means theres going to be a different box to achieve that so you have your separate turn signals and stop lights still the same. That covers part # 38955.


Customer Reviews

Tail Light Isolating Diode System with Wiring Harness - 38955

Average Customer Rating:  ratingratingratingratingrating4.6 out of 5 stars   (67 Customer Reviews)




- 38955

ratingratingratingratingrating by: linwood m08/28/2011

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installed your isolating diode wiring harness 38955 also the blue ox base plate bx1126 . install was very easy with video on your site.was installed on my 2007 wangler to be towed with holiday rambler motor home. 22966



- 38955

ratingratingratingratingrating by: Joe G11/22/2011

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Installed the wiring kit on my 2008 Smart car. The Diode pack was exactly what I needed and made the installation simple and very clean. The kit was 100% complete in every way with more than enough wire to do the job. Thanks for a great product and at a price that made it practical. 27314



- 38955

ratingratingratingratingrating by: Allan A.11/17/2011

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The product arrived as expected & on time, with plenty of instructions and even a measure of product installation “Difficulty Rating”. I diffidently would use this measure to determine if I need help or could do it myself. Thanks for your excellent response time and “World Class Customer Service”. A.A. 27067



- 38955

ratingratingratingratingrating by: Paul P11/04/2013

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The delivery was prompt and the packaging was excellent. The product is exactly like the picture. I would recommend this site to all that are shopping for this product. The only reason that I gave the product a 4 star vs a 5 star is that the plug that hangs in front of your vehicle does not have a cover to protect it from corrosion. What you see is exactly what you get. I would buy from this dealer again.106166



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ratingratingratingratingrating by: David B10/25/2013

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Product contains everything a do-it-yourself handyman requires to completely wire a vehicle's existing lights for towing. The rate limiting part of this project is deciding how and where to run the wires from the front of the vehicle to the tail lights. The actual wiring of the lights requires about 15-20 minutes. Now I don't have to use the magnetic tow lights and string the wire through the vehicle. Thank you.105205



- 38955

ratingratingratingratingrating by: Charles S.07/09/2013

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This is exactly what I needed to complete my tow package for the RV. I have seen for several years RVs towing a toad and always liked the idea of having the toad vehicle tail lights work from the RV. The diodes were easy to install and the spades fit tight. Instructions were clear even fo rthis old guy. Delivery was spot on with several emails communicating to me what was going on with the order. Thanks a bunch! :)88444



- 38955

ratingratingratingratingrating by: John B06/13/2013

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Everything I needed was included in the kit. An online video showed the installation steps very clearly. The wire provided was long enough for any vehicle. I had 6-8ft leftover after installation in my Dakota quad cab truck. Experience level: Above average (retired engineer)84390



- 38955

ratingratingratingratingrating by: Eldon02/28/2013

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The product is now installed and works great. The instructions were sketchy (they were literally a sketch!) but I was able to muddle through it. Instructions did not call for the signal light wires to actually connect to the (separate) signal lights which I have on my Geo Tracker. When I rewired it this way everything worked fine.67929



- 38955

ratingratingratingratingrating by: Terry02/24/2013

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The product arrived as promised and all components seem of good quality. I was apparently shorted, I don't think I dropped or lost it, one spade lug which required an extra trip to the hardware store. It would be nice if a couple of extra lugs were included incase one gets lost or messed up during install. Other than that, all worked fine as promised after install.67591



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ratingratingratingratingrating by: James B.06/11/2012

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Delivery was prompt and product performs as advertised. The only difficulty was with the crimp-on spade terminals which are too large for the harness wire. It was necessary to solder the cable ends to make them slightly larger to get a tight crimped connection.43688



- 38955

ratingratingratingratingrating by: Earl Cook01/24/2012

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The product arrived in three days in very good condition. Installation went well, the video is a great help. I suggest that a longer ground wire be installed. I was required to add some length to it to make compatible with roadmaster tow bar to my motorhome. All in all a good product. Earl Cook30239



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ratingratingratingratingrating by: Dustin W12/17/2010

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diode kit Exactly what I needed at a great price. Product is as advertised and good quality. 4282



- 38955

ratingratingratingratingrating by: js01/29/2011

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worked great 6361



- 38955

ratingratingratingratingrating by: Dave S01/25/2011

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Quality trailer pruducts at a good price, and fast delivery too.6090



- 38955

ratingratingratingratingrating by: Gordo01/20/2011

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Diodes Installed with minimal issues. I only needed 2 Diodes for my Jeep, but I'll hold on to the extras.. Seems to be a good product!5741



- 38955

ratingratingratingratingrating by: Herbert P04/04/2014

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Great product, worked good and easy to install. Thanks for the fast service.123723



- 38955

ratingratingratingratingrating by: Dave H.03/31/2014

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Arrived super quick, even with standard shipping. Product looks just like the pictures. Haven't installed yet.122987



- 38955

ratingratingratingratingrating by: Larry M.02/03/2014

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Ordered this diode harness and was surprised how fast it was shipped. Instructions are easy to understand and should be installed without problems. It will solve my tow car lighting. 115552



- 38955

ratingratingratingratingrating by: Mark W.12/20/2013

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My order was processed and in the mail with great speed,when it arrived it was just as pictured with good clear instructions.I am very pleased and would recommend them to everyone.110727



- 38955

ratingratingratingratingrating by: Eldon12/20/2013

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I havn't installed or used the product but the service was EXCELLENT! It was shipped the day it was ordered and delivered two days later, great service for the Christmas season.110688



- 38955

ratingratingratingratingrating by: Viento111/19/2013

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Prompt delivery of my order. Instructions appear complete. Haven't installed it yet.107853



- 38955

ratingratingratingratingrating by: Ronj S10/07/2013

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On-line instructions were perfect. Installation a breeze. Only suggestion I have is to include a couple of extra connectors in the package. Raise the price a buck if need be.102860



- 38955

ratingratingratingratingrating by: Bernie S09/30/2013

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Seemed to be just what I need for vehicle. Ran a copy of instructions since none came with kit101999



- 38955

ratingratingratingratingrating by: Don F09/24/2013

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Not yet installed, but looks to be of good quality and is just what I need.101311



- 38955

ratingratingratingratingrating by: Ivan Tracy09/04/2013

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Product is great but a wiring diagram would be helpful.98202



- 38955

ratingratingratingratingrating by: Jerry Lott08/08/2013

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Very fast shipping. 93976



- 38955

ratingratingratingratingrating by: Tom G08/06/2013

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Everything I ordered was received and packed extremely well. Great service and the product is what was advertised. Thai you so much! Tom G93566



- 38955

ratingratingratingratingrating by: Douglas03/19/2013

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very fast shiping and exactly what was described.71552



- 38955

ratingratingratingratingrating by: Donald03/18/2013

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Just finished installing. Haven't had a chance to towe with it yet but went in just like I expected.71295



- 38955

ratingratingratingratingrating by: arthur03/08/2013

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exactly what i ordered. 69708



- 38955

ratingratingratingratingrating by: Joap03/08/2013

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fast shipping and good items 69580



- 38955

ratingratingratingratingrating by: Dennis03/05/2013

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The products were exactly what I needed and were of a very good quality. The service was fast and hassle free. I would recommend this business to anyone. 68899



- 38955

ratingratingratingratingrating by: Joe02/16/2013

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Well pleased with service and wiring harness I ordered from your company. Great price, fast delivery, very easy to install. 66560



- 38955

ratingratingratingratingrating by: Layne01/31/2013

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Excellent value for the money. By using this kit and doing it myself I saved over $200.64665



- 38955

ratingratingratingratingrating by: Bill Springer11/21/2012

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Got the kit installed. Using on my toad (RAM Dakota) to be pulled behind my motorhome. My first one like this and easy and good quality product. Highly recommend.59891



- 38955

ratingratingratingratingrating by: Clayton11/18/2012

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It was eazy to install and worked well. Delivered on time59637



- 38955

ratingratingratingratingrating by: chuck s10/29/2012

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Easy install. Good instructions, plenty of wire length for my application (Mazda Miata). Worked perfectly first try and we are pleased with the result.58349



- 38955

ratingratingratingratingrating by: Charles09/24/2012

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Worked great. Make sure you have a good ground.55644



- 38955

ratingratingratingratingrating by: Cliff B.09/11/2012

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Exactly what I was wanting, quick delivery. I will be a return customer54367



- 38955

ratingratingratingratingrating by: Ruben V.07/23/2012

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Instructions hard to read, otherwise it worked as expected.49102



- 38955

ratingratingratingratingrating by: Don Clarke06/27/2012

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Thank you for your service and quick shipment of the diodes and wiring.Your directions on line explain a great deal of detail.45821



- 38955

ratingratingratingratingrating by: John C06/23/2012

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The diodes and wiring harness that you sent me were just as discribe and just what I needed. Thank you very much for your promped service.45378



- 38955

ratingratingratingratingrating by: chris04/23/2012

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Excellent product - better than the product was the professional support and help. These people take support seriously. would recommend to anyone.38130



- 38955

ratingratingratingratingrating by: Leonard A03/21/2012

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Excellent service from E Trailer ordered on Sunday received on Wednesday. 34649



- 38955

ratingratingratingratingrating by: Michael02/07/2012

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The kit is complete with easy to follow instructions. I have purchased from etrailer before and will do so again.31298



- 38955

ratingratingratingratingrating by: Glen01/16/2012

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Good product. Fast shipping. Components were sent as described. A quick install guide shipped with the product would have been helpful. Had to go back and search online for install instructions.29790



- 38955

ratingratingratingratingrating by: dennis d11/14/2011

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Everything exactly as promised + good v alue26947



- 38955

ratingratingratingratingrating by: charlie potter10/06/2011

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wonderful product and I cant believe how fast you delivered the parts,charlie25200



- 38955

ratingratingratingratingrating by: John C Lane10/03/2011

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Excellent service--excellent product---very easy install--- excellent in every way!24990



- 38955

ratingratingratingratingrating by: Kathleen D.08/03/2011

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Great price. Ordered extra diodes for use on 5 wire system. KWD20980



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ratingratingratingratingrating by: mick08/02/2011

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wiring and diodes in good shape and easy to install. 2010 ford edge 20937



- 38955

ratingratingratingratingrating by: Dave Shannon08/01/2011

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Nice and simple, good directions on the website. Fast order processing and shipping, very happy. Thanks again guys.20745



- 38955

ratingratingratingratingrating by: Gene F05/30/2011

Is this review helpful?


Tow bar brakets were correct ones and in excellent condition. They were delivered on time. I have ordered from E Trailer three times; each time have been completely satisfied. 15686



- 38955

ratingratingratingratingrating by: Dave P05/13/2011

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The diode wiring kit was fairly easy to install. The instructions were good and everything was delivered very quickly.13813



- 38955

ratingratingratingratingrating by: Bubba04/25/2012

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Works good 38336



- 38955

ratingratingratingratingrating by: jeff03/28/2012

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Exactly as described. Best price I could find.35402



- 38955

ratingratingratingratingrating by: Gene T.02/29/2012

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Product was exactly as advertised. Pictures were exact representative of the wiring system. Delivery was reasonably prompt. Will definitely be a returning customer. thanks32800



- 38955

ratingratingratingratingrating by: Tim02/23/2012

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The product went together very easily. It was delivered in two days.32292



- 38955

ratingratingratingratingrating by: Ralph G.02/03/2012

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I installed the wiring harness on my vehicle like the video showed it works great. 31019



- 38955

ratingratingratingratingrating by: Doug S.07/08/2011

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The ground wire is way too short. I had to add afew feet to it. This product is used by RV'ers and the towed car is going to be at least 5 feet behind the motorhome connection point.18949



- 38955

ratingratingratingratingrating by: Will Whitley06/02/2011

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Everything we get from y'all is very go od15961



- 38955

ratingratingratingratingrating by: Rod05/11/2011

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Product worked as advertised. What was great was great was the detailed installation directions.13353



- 38955

ratingratingratingratingrating by: John B.05/10/2011

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The harness arrived in a timely manor. It was straight forward to install and worked perfectly. I'm a satisfied customer.13292



- 38955

ratingratingratingratingrating by: jim A.05/10/2011

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Install went well.Good product 13232



- 38955

ratingratingratingratingrating by: Blan Patterson05/10/2011

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The Product itself was fine, but it took almost 3 weeks to get it...13174



- 38955

ratingratingratingratingrating by: Norm J.05/05/2011

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Product was as expected. Wiring instructions in box would be a nice extra.12918



- 38955

ratingratingratingratingrating by: Pete S06/07/2011

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good product and easy to install. 16355



Ask the Experts about this Hopkins Tow Bar Wiring
Expert Answers about Tail Light Isolating Diode System with Wiring Harness - 38955                                             Do you have a question about this Tow Bar Wiring?


  • Using Tail Light Isolating Diode System on 1996 Plymouth Voyager Equipped with 4-Pole Flat Connector
  • Using the Tail Light Isolating Diode System, part # 38955 will tap into the tail light circuits of your Voyager, but not affect your existing tow wiring. The diodes are used to make sure that no voltage feeds back into the tow vehicle. The product description page features easy to follow wiring diagrams to assist your installation.
    view full answer...

  • Pollak 6-Pole Trailer Wiring Socket # PK12720 Recommendation for Flat Towing a 2011 Honda Fit
  • I would recommend you remove the 4-wire flat plug and replace it with a Pollak 6-Pole, Round Pin, Plastic Trailer Wiring Socket, part # PK12720, like you mentioned. This way you would not have to use an adapter which would give you a cleaner install and give you one less component that could potentially fail on you. I attached an FAQ article on tow bar wiring below for you to check out also.
    view full answer...

  • Recommended Tow Bar Wiring for a 1999 Chevy Suburban
  • To wire your Suburban for flat towing, there are three choices. A magnetic mount lighting system like part # C-ATL20A is a good choice if you are not planning on towing the vehicle frequently. Since you are looking to permanently wire the vehicle, either the Roadmaster Wiring Kit with Bulbs, part # RM-155 or the Tail Light Isolating Diode System with Wiring Harness, part # 38955. Part # RM-155 features bulbs that would mount using holes drilled in the tail light assembly of the vehicle. This
    view full answer...

  • Is it Safe to Use Tail Light Isolation Diodes on a 2005 Jeep Wrangler TJ for Flat Towing
  • Yes, it is safe to use diodes on your Jeep Wrangler. Diode Kits, like the Hopkins Tail Light Isolating Diode System, item # 38955, are designed to stop any power feed back onto the vehicles electrical system. If it concerns you, and drilling a hole in the tail light housing is not an issue, you can definitely use a bulb kit on your TJ. Blue Ox recommends the Blue Ox Tail Light Wiring Kit, item # BX8869, along with the Blue Ox 4-Wire, Coiled Electrical Cord and plugs, item # BX8861. I would
    view full answer...

  • Tow Bar Wiring Recommendations for Flat Towing a 2011 Chevy Malibu 1LT with a 2010 Jayco Seneca
  • For tow bar wiring you basically have three options to choose from. You can use the magnetic lights like you are familiar with, like a RoadMaster Standard Magnetic Tow Lights, part # RM2120. You can use a diode kit like the Tail Light Isolating Diode System, part # 38955, that you referenced. If you are looking for the highest quality diode kit on your 2011 Chevy Malibu you would want the Roadmaster Universal Hy-Power Diode Wiring Kit, part # RM-154. Or you can use a bulb light kit like
    view full answer...

  • Wiring or Lighting Recommendation For Flat Towing a 2011 Chevy HHR Behind a Motor Home
  • There are actually a couple of different ways you can add wiring or lights to your 2011 Chevy HHR so it can be flat towed behind a motor home. I have included a link to an FAQ article that explains the different options. If you plan on towing the HHR often, it would be beneficial to install diodes using Roadmaster Universal Hy-Power Diode Wiring Kit, # RM-154. I have included a link to a video showing a typical installation. If you do not plan on towing it often, I recommend going with the
    view full answer...

  • How to Wire a 2007 Jeep Wrangler so All Running Lights Work Front and Back When Used as Toad
  • If you want to run the lights at the front of your toad you will need to install a diode at each running power wire going into the light bulb socket. You would need extra diodes, # 48955, and you would need to splice in extra wiring, # DW02360-1. Wiring the front running lights will be similar the wiring the rear running lights, see attached photo. You will need to make sure that your towing vehicles trailer wiring is capable of handling the extra amperage required by adding the extra
    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 to the
    view full answer...

  • Can the Hopkins Isolating Diode System Be Used on a 2011 Buick Enclave without Throwing any Codes
  • Yes, you can use this Tail Light Isolating Diode System # 38955 on your 2011 Buick Enclave with out it affecting the on-board diagnostics of your vehicle. Check out the video I attached that shows this product being installed onto a very similar Buick Enclave as yours.
    view full answer...

  • Recommended Tow Bar Wiring Kit for 2005 Jeep Wrangler X
  • According to Roadmaster, there is sufficient room in the tail light assemblies of a Jeep Wrangler to accommodate the separate bulb and socket like that used with part # RM-155. I would recommend that system, as the install is simpler with no splicing into the existing wiring on your Jeep. The wiring for towing will remain completely independent of the wiring on the Wrangler. There is nothing wrong with the Isolating Diode kit, but the install is more involved and time consuming. For more i
    view full answer...

  • Tail Light Isolating Diode System # 38955 Install on 2011 Ford Fiesta
  • If you go to the product description page for the Hopkins Tail Light Isolating Diode System, part # 38955 and scroll down to the bottom of the page (use the provided link) you will see 4 install diagrams. The wiring method used will depend on the way the tail light circuits on your RV are wired. The lights can be wired in one of two different ways. If your RV uses what we call a combined system, the brake light and turn signals are combined into a single circuit, using a singe bulb on each si
    view full answer...

  • Parts Needed to Wire a 2008 Ford Edge with Diodes to Flat Tow Behind an RV
  • To wire a 2008 Ford Edge with Diodes for flat towing, you will actually need a total of 6 diodes OR you need to use the 4 you have and a Brake-lite Relay, # RM-88400. To add two diodes use # RM-792. I have included a link to the instructions for the 6 diode wiring method. The Brake-Lite relay is needed on vehicles with separate lighting if the towed car is wired using a 4-diode kit (instead of a 6-diode kit). There are additional diagrams and instructions for the relay on the product page.
    view full answer...

  • Wiring a 2000 Nissan Frontier with Diodes to Flat Tow
  • Since your 2000 Nissan Frontier has separate turn signals and brake lights there are a couple of options. You could use just 4 diodes and the lights on the truck will function as a combined system. You will also need a brake light relay, # RM-88400, for use with a supplemental braking system if you want to just use 4 diodes. If you want to retain the separate brake and turn signals on the vehicle you would need to use 6 diodes if the towing vehicle also has a separate system. Basically you
    view full answer...

  • Does an RV Need a Trailer Wiring Converter to Use a Bulb and Socket Light Kit on 2004 Jeep Wrangler
  • The Roadmaster bulb and socket kit # RM-155 requires a 4-Way trailer connector on the towing vehicle to power the bulbs. If your RV has a 4-Way already (or another common connector) then the signals are already converted and all you will have to do is install the bulbs and connect to the RV to power the lights. If the RV does not have a trailer connector then you will need to install one using a converter like # 119175KIT. I have linked isntructions for you to view. If the RV has a differe
    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, # R
    view full answer...

  • Using Hopkins Tail Light Isolation Diode Kit, Part # 38955, In 2013 Honda Fit Being Flat-Towed by RV
  • The Hopkins Tail Light Isolation Diode Kit, Part # 38955, prevents braking signals generated in your towed Honda Fit from feeding back into your RV lighting system when you are using a supplementary braking system such as the Ready Brake. Please refer to the linked installation video showing how the diode kit installs in a 2010 Honda Fit. You indicate that your RV has a combined lighting system - brake and turn lights carried on the same wire. You may be able to use just this diode kit in you
    view full answer...

  • Tow Bar Wiring and Accessories Needed to Flat Tow a 2008 Jeep Wrangler
  • There are several flat towing wiring options available for your 2008 Jeep Wrangler. I have included a link to them for you. Even though it is not listed, you could also use # 38955. To avoid draining the battery while flat towing the vehicle, a quick battery disconnect is recommended, # RM-765. Also, based on my research, it looks like you will have to pull a fuse to flat tow the Jeep. Confirm this with your owners manual in the recreational towing section. To make the process easier I recomm
    view full answer...

  • What is the Maximum Amperage Rating for Hopkins Tail Light Isolating Diode System # 38955
  • The Hopkins Tail Light Isolating Diode System # 38955 includes 4 diodes. Each of the diodes carries a 3-ampere current rating; I confirmed this with my technical contact at Hopkins. In practice this will be plenty of current capacity for the single lighting circuit connected to each diode. I have linked for your reference an installation video for this product showing use in a Ford vehicle.
    view full answer...

  • Will Supplemental Braking System and Tow Bar Wiring from RV Overload Brake Lights on Toyota Tacoma
  • Both a brake light signal from the motor home and the brake signal from the vehicle are 12 volt systems. If both are supplying power at the same time to the same circuit it would not overload it because it would not double up the power to 24 volts. You may need a brake light relay # RM-88400 to keep the Tacoma brake signal from overriding the turn signal sent by your RV. The relay is needed on towed cars with combined lighting if you are using a supplemental braking system. Combined lighting
    view full answer...

  • Wiring Needed for Towing a 2007 Kia Rio with a 2008 Freedom Express Class C RV
  • Your Kia requires a taillight converter, so you will need the Tail Light Isolating Diode System, part # 38955 and the Vehicle to Vehicle Taillight Converter, part # 118158 along with two extra diodes, which will require purchasing the Tail Light Isolating Diodes Qty 4, item # 48955, or the Roadmaster Hy-Power Diodes Qty 2, item # RM-792. If you do not mind the brake lights blinking when the turn signals are activated then you can just use the Tail Light Isolating Diode System, part # 38955, a
    view full answer...


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