Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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• Which Trailer Wiring Harness To Use On A 2000 Jeep TJ Wrangler Sport
  Both the Tow Ready T-One Wiring Harness # 118409 and the Hopkins Plug-N-Tow Wiring Harness # 42615 will work on your 2000 Jeep TJ Wrangler Sport. The difference is what you mentioned, how they install to the vehicle. The Tow Ready harness uses T-One connectors that will plug into connectors on each side of the vehicle. The connectors are located under the Jeep, behind the rear bumper. The white ground wire will need to be attached to a good,clean ground on the vehicles metal frame. The...
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• Trailer Wiring and Hitch Recommendation for a 1999 jeep Wrangler
  Basically, there are 2 different ways on which you can install trailer wiring on a 1999 Jeep Wrangler. The Tow Ready Custom Fit Vehicle Wiring, # 118409, plugs in line with the wiring behind the vehicle tail lights. Installation may take a little longer than the other harness but these types of connections are popular and work well. I have included a link to the installation details and a video showing a typical installation for you. The Hopkins Harness, # 42615, plugs into a connector...
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• Troubleshooting 7-Way Connector on Motorhome When Lights Don't Work On Towed 1997 Jeep Wrangler
  It does sound like there may be a problem with the wiring of the RV connector as you mentioned. Especially since you said it works fine when the Jeep is connected to another vehicle. You may want to also check the fuses on the motorhome to make sure they are not blown and causing the issue. I have attached a helpful article that shows 7-way connectors and how they are typically wired. You will want to make sure you test the pins on the motorhome connector and they match exactly to the...
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• Right Side Trailer Lights Go Dim With Brakes Applied
  This is a tell tale sign of a ground issue. I recommend you check that the new light assembly you just installed has a proper ground. In order to do this you would need to remove the light or ground wire and then sand down the mounting point with some sandpaper. You can then reattach with new hardware. If this does not fix your problem please let me know and I would be glad to offer further troubleshooting advice.
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• Is It Normal For Battery In 2018 Jeep Cherokee To Get Drained While Being Flat Towed?
  On your 2018 Jeep Cherokee the battery is going to be getting drained as the battery is not disconnected and no fuses are pulled to flat tow your vehicle, so your harness is installed correctly. To keep the battery from getting drained you will need to install the Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25 and Roadmaster Battery Charge Line Kit for Motorhomes # RM-156-75. This charge line takes power from your towed vehicles battery and sends it to the battery on...
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• Need For MOPAR Flat Towing Wiring Kit for 2017 Jeep Cherokee 4x4 Limited
  The recreational towing section of the owner's manual for your 2017 Jeep Cherokee states that using the wiring kit for this particular vehicle is indeed necessary. They go on to caution that "Failure to use the proper Mopar wiring kit to power the steering system during recreational towing may damage the vehicle’s steering system and/or other vehicle components." This being said, my research has seems to contradict this. I've found a Mopar tech bulletin (08-022-16) that states that the...
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• Wiring to Flat Tow a 2012 Jeep Wrangler Behind an RV
  A wiring harness that is used to power lights on a trailer cannot be used in reverse to power the lights on the vehicle when it is being flat towed. This is unless it is a specially made harness designed for this purpose. There are numerous wiring kits available for the 2012 Jeep Wrangler, see link. The easiest to install that does not require cutting and splicing wires is the Hopkins wiring kit, # HM56200. It will just plug in line with the vehicle tail lights and it has a 4-Way to connect...
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• Does Flat Towing 2015 Jeep Cherokee Trailhawk Require Mopar Harness 68321424AB
  Yes the 2015 Jeep Cherokee does require the Mopar flat towing harness part number 68321424AB to prevent the steering wobble issue and would be needed. In later versions of the vehicle the harness was no longer needed but for the 2015 the harness was still needed.
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• Tow Bar Wiring to Flat Tow a 1995 Jeep Wrangler Behind a Motor Home
  Hopkins trailer wiring harness # 42615 does not fit a 1995 Jeep YJ. Also, it is a harness meant for towing a trailer WITH a Jeep rather than to tow the Jeep behind a motor home. I have included a link to the wiring harnesses for flat towing the Jeep. There isn't a plug and play type of harness for this particular vehicle. What I recommend and what our installers like to install because it is the easiest is the bulb and socket kit # RM-155. This bypasses the vehicle wiring so there is no...
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• Boat Trailer Running Lights Go Out when Stepping on Brake Pedal
  This sounds like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
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• What Circuit of the Roadmaster RM-155 Does the Brown Wire Run to
  The issue is the way you wired up the brown wire. This needs to run to the running light circuit of your vehicle. This is the circuit that activates the dimmer illumination of the trailer lights you have on your vehicle. It would not run to both the brake and turn signal circuit like you mentioned. I attached a link to an install video for the # RM-155 being installed on a similar Liberty as yours.
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• Is Mopar 68321424AB Flat Tow Wiring Kit Needed to Flat Tow a 2017 Jeep Cherokee Latitude
  Although Jeep corrected the problem beginning with the 2019 model, the 2017 Jeep Cherokee Trailhawk will indeed need the Mopar 68321424AB flat tow wiring kit to activate the electronic power steering system while the vehicle is in tow mode. You'll need to obtain the part from your Jeep dealer. To flat tow your Jeep, you'll need a tow bar, base plates, safety cables, a wiring harness to join the Cherokee to the tow vehicle and a supplemental braking system. In some cases, a high/low adapter...
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• Recommended Flat Towing Light Setup For Easy Installation on 2018 Jeep Wrangler
  As long as you've installed a tow bar wiring kit on your 2018 Jeep Wrangler that allows your vehicle lights to work in conjunction with the signals from your RV, you won't need to add additional lights when you're flat towing. It sounds like you may not have anything setup on your Jeep yet, so I recommend using the Heavy-Duty Magnetic Tow Light Set - Incandescent - 30' Harness # 337TL257M since it is a completely wireless system that plugs into a 4-way connector on your RV. This is a super...
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• Flat Towing Set Up for a 2022 Grand Cherokee WK Limited
  Yes, the etrailer Invisible Base Plate Kit - Removable Arms item # e98950 does fit your 2022 Grand Cherokee WK Limited. I checked with Blue Ox you will want to use the Blue Ox Tail Light Wiring Kit - Bulb and Socket item # BX8869. Get the signal lights needed for towing without tapping into your towed car's electrical system. This self-contained kit runs wiring beneath your Jeep and connects to your RV. The bulbs and sockets mount inside your rear lenses. Last we heard the steering harnesses...
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• Both Turn Signals Light Up and All Lights Go Out with Brake Lights On Boat Trailer
  It does sound like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
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• Is the Mopar Recreational Flat Tow Wiring Kit Needed to Stop Wobble on a 2021 Cherokee?
  From what I could find out, the Mopar Recreational Flat Tow Wiring Kit will not be needed for a 2020 or 2021 Jeep Cherokee Trailhawk. This was only a requirement on a 2014 to 2018 as the issue this was designed to combat has since been rectified. If you have not completed your flat tow set up as of yet, the following will be some recommendations to get you on the road. One of the huge pluses with having a Jeep is they are one of the most common vehicles to flat tow. With that being said,...
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• Using T-One Wiring Harnesses Together for Both Flat and Trailer Towing on a 2000 Jeep Wrangler
  The Hopkins Custom Tail Light Wiring Kit part # HM56202 will work in conjunction with the Hopkins Plug-In Simple Vehicle Wiring Harness part # 42615. The wiring harnesses will plug into one another and then "T" into the vehicle's lights behind the taillights on your Wrangler. You will also need to use the Roadmaster Brake-Lite Relay Kit part # RM-88400. The only problem you may run into is that the loom of wires for both connectors will be a tight fit behind the taillights and may require...
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• Is Mopar Flat Tow Wiring Harness Required For 2019 Jeep Cherokee Trailhawk
  I was able to find the owner's manual for your 2019 Jeep Cherokee Trailhawk and it does not mention requiring the Mopar Flat Tow Wiring Harness 68321424AB. I looked at the 2018 owner's manual and it does mention it there so you are correct that the 2018 and older Jeep Cherokee Trailhawk's will require the mentioned harness but your 2019 will not. I would highly recommend you check your owner's manual and read the Recreational Towing Section to make sure you follow the exact procedures...
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• Tow Bar Wiring Causes Lights Not to Work on 1992 Elite Motorhome and 1997 Jeep Grand Cherokee
  You are just going to need the proper wiring kit. It sounds like there are a combination of problems that are leading to the failures. There could be short and ground issues causing the lights not to work and the converter to blow. First, lets look at what is going on with the motor home. If it has a trailer connector on it you will want to test it using a circuit tester such as # PTW2991. I have included a link to a help article that explains how to test it. If some of the circuits are...
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• Recommended 4 Way Trailer Connector for 2000 Jeep Wrangler TJ
  A 4 way trailer wiring harness like the Hopkins Plug-In Simple # 42615 and the other harnesses you mentioned will all provide the same functions to control the trailer brake lights, running lights. emergency flashers and turn signals- so no matter which one you choose they'll provide everything you need. I like the Hopkins harnesses as they've proven to be very durable over time and well made, and it will do a good job for you.
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• Will Hopkins Wiring Harness 42615 Work on a 2000 Jeep Wrangler Towing a Trailer with 4-Way Wiring
  Yes, the Hopkins plug-in wiring harness # 42615 would work well on your 2000 Jeep Wrangler, and give you the required 4-Way plug to connect to your trailer. This wiring harness is connected underneath the vehicle, on the passenger's side, behind the rear tire mud flap. I would recommend a mounting bracket like part # 18144 to store the plug when not in use. You can view some additional information on wiring for towing at the links below.
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• Recommended Flat Tow Wiring for 2018 Jeep Grand Cherokee Instead of Mopar Harness
  If you are referring to the Mopar harness that fixes the steering stability issue, then it was resolved by Jeep starting with the 2018 models so you won't require it. For lighting, you can use a Mopar wiring kit if desired, but there are other options that will work well for your 2018 Jeep Grand Cherokee. I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which splices into your factory wiring while protecting it from overload. I also recommend adding...
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• Trailer Lights Go Out when Brakes are Applied
  What you describe is a ground problem with the trailer wiring. Starting at the rear of the vehicle, confirm that the ground connection on the Plug and Tow Harness is securely fastened to bare metal. If there is undercoating, corrosion, or grime built up under where you attached the ground, you will not have a good connection. Next, examine the point on the trailer where the trailer connector ground wire attaches. This can usually be found on the trailer tongue. Make sure the wire is in...
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• Troubleshooting Trailer Turn Lights that Stop Working When Running Lights Are On
  The trailer lighting problems you describe both sound like they are caused by a bad ground connection. A weak trailer wiring harness ground may allow some light functions to work normally while others do not. Problems usually show up when the running lights are turned on, since they pull power continuously, unlike brake and turn lights which are on only briefly. You can check the main wiring harness grounds on both the vehicle and trailer, making sure both are firmly attached to a clean...
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