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Expert Answers about Jeep Wrangler


  • Installation Troubleshooting of Roadmaster Crossbar-Style Base Plate Kit
  • The Roadmaster Crossbar-Style Base Plate Kit, # RM-521448-4, is a confirmed fit for the 2013 Jeep Wrangler. And the Roadmaster Sterling All Terrain, Non-Binding Tow Bar, # RM-576 is a match to those base plates. Manufacturing variances occasionally cause difficulties with installation. Depending on if your vehicle has a hole on the outside of the frame or not, you may have to drill one. I have attached a video of these base plates being installed on a 2013 Jeep Wrangler. Please checkout...
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  • Adapting Swivel Collar on Tow Bar For Compatibility with MX-5 Base Plate on 2014 Jeep Wrangler
  • The Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521448-5 are a confirmed fit for your 2014 Jeep Wrangler Rubicon and should fit just fine with your Falcon 5250 tow bar. I reached out to my tech contact at Roadmaster and there are different collars. The Roadmaster Replacement Swivel Collar for Falcon 2 Tow Bar # RM-9200-4 is what they recommend for your application. There will be some play but the 3/8 inch sounds excessive. This swivel collar will have a 3/4 inch diameter...
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  • Brake Controller Suddenly Shuts Off While Towing Trailer
  • If your brake controller is going blank suddenly it either means that the power has been interrupted to the controller or there is something wrong inside the controller itself. You will want to check the connection on the black wire of the brake controller. This is the 12 volt power wire to the controller. Any loose connections could be causing the problem. The click you are hearing could be a noise it makes when power is disconnected. Also check the white ground wire. If it is loose then...
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  • Troubleshooting Passenger Side Turn Signals/Brake Lights That Don't Work After Installing Diode Kit
  • After checking out our install video on a 2021 Jeep Wrangler the only thing it seems to me like it could be is the wires on your passenger side may be incorrectly hooked up. The easiest way to check this is to remove the OEM wiring from the diode and check the functions of your taillight with a circuit tester # PTW2993. You are going to need to replace the spade connectors with # RM-300115-00 since you'll need to cut off the existing ones to crimp the wires. If the wiring is correct,...
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  • Troubleshooting Trailer Brakes that Lock Up Immediately when Brake Pedal is Pressed
  • It sounds like the stop/turn signal of your trailer wiring is shorting to the brake output circuit and when you apply the brake pedal 12 volts is being applied to the brake assemblies and locking them up. I would suspect that one of your blinkers causes the trailer brakes to lock up intermittently as well. Check the trailer wiring of both your vehicle and trailer looking for any shorts such as cut or exposed wire and/or corrosion and fix as necessary.
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  • Troubleshooting Trailer Wiring When One Side Of Trailer Has No Functioning Lights
  • It sounds like you are on the right track. Ground wire problems can cause a variety of issues such as the dim lights you mentioned to not working at all. You will want to inspect all the wiring for the lights and make sure there is no sign of corrosion or damage. Grounds should always be secured to a clean, bare metal surface. You will also want to check the trailer connector for signs of damage or corrosion to any of the pins. I have attached a helpful article that explains how to troubleshoot...
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  • Troubleshooting Turn Signals and Brake Lights Dimming When Headlights Turn on During Flat Towing
  • The issues you're seeing won't be caused by not adding a relay to the wiring when you installed the # HM56202 and Brake Buddy Stealth # HM39530 and since you've already checked all of your ground wires I recommend moving on the the # HM56202 itself. If you can test the voltage going in to the converter box and coming out and see if that's where the power is being lost; this might indicate something amiss with the converter box. If you can check the voltage there and let me know what you...
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  • Troubleshooting Trailer 7-Way Detaching From Curt Echo Wireless Brake Controller
  • I'm sorry to hear you have had trouble with your Curt Echo # C51180. Although there have been some reports of the Echo falling out of the vehicle when not secured with the strap, we have not received any about the trailer wiring falling out of the Echo itself. When plugging your trailer's 7-way into the Echo make sure it is fully seated for a secure connection. Also, make sure that the tab underneath the cap is in place behind the tab on the top of your 7-way connection. This will keep...
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  • Troubleshooting Running Lights not Working With Roadmaster Diode Flexo-Coil Wiring Kit
  • What we have found when there is an issue with running lights but not other lights when installing the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 is that the problem is almost always due to an issue with the diodes. So if the wires are not properly routed with the diodes, or there is an issue where a wire was somehow crimped or damaged then the running lights would not work. You need to create a jumper wire and attach the diodes that way, which may have been the...
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  • Troubleshooting Left Turn Signal and Brake Light Not Working After 7-way Adapter Installation
  • To answer your question, yes, it could be a bad ground. I would double check the ground from your 4-way as well as the ground for the 7-way adapter. Make sure they are securely attached to a clean, bare metal surface. You may even consider moving the ground from the recently installed adapter to a new position. The ground wire on the # C57672 should be secured directly to the frame. If that doesn't fix it, I would check all of the connections related to the left turn signal and make sure...
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  • 4-Way Wiring Issue on 1997 Jeep Wrangler With LED Taillights
  • I believe we are running into one of 2 issues. I believe the issue may be with the LED taillights that you installed 6 months ago. Depending on how they are controlled that might be where the issue is coming from. It could have its own circuitry that is causing the power to crossover and that is why you are seeing both turn signals going when they shouldn't be. I recommend reaching out to the Taillight Manufacturer to see if they are aware of this being an issue. The second could be the...
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  • Adjusting Settings for New Install of Blue Ox Patriot Portable Braking System
  • You can adjust the Blue Ox Patriot # BLU37TR using the sensitivity adjustments in the setup screen. The large number on the display represents the force setting. I suggest you hook the Jeep up to the motor home and test braking with it in a open area away from other vehicles. Test for max force by setting to maximum amount and verifying it engages. If it does, back off the setting until you feel engage with a reasonable response. Let us know if it does not engage and we will troubleshoot...
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  • 2014 Jeep Wrangler Left Side Lights Not Working when Connected to a Motorhome
  • If everything works when the 2014 Jeep Wrangler is connected to a different 7-Way trailer connector, then that would indicate that the issue is more likely on the RV side. First you can test the RV's 7-Way using a circuit tester such as # PTW2993 or a meter if you have one. The pin on the RV's connector for the left turn signal and brake light is located in the 9 o'clock position. The running light circuit is shared. If you are not getting any power on the pin in the 9 o'clock position...
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  • Troubleshooting a Jeep That Won't Start After Flat Towing
  • The Roadmaster InvisiBrake Supplemental Braking System Item # RM-8700 will drain the battery while towing so the first thing to check is if the battery is reading 12.6 volts or higher. If not then your battery is the issue. The starter could also be needing to be replaced if you're not getting a crank. I spoke with Roadmaster and their tech stated that if you have a brake relay or custom fit brake switch installed and the wiring is incorrectly installed it could be causing this issue...
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  • Troubleshooting Jeep Lights Not Working with Flat Tow Harness
  • Since your Jeep lights work normally when it is not connected to your RV your harness # HM56202 is probably connected properly. I suggest you test the motorhome connector to confirm that the correct lighting signals are present there. You can use a circuit tester like # PTW2992 on the contacts while a helper activates the brake, turn and running lights on the coach. Please refer to the linked article on wiring to see which contacts handle which signals on the various types of RV connectors. If...
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  • Troubleshooting No Left Side Trailer Lights When Connected to Curt Wiring on a 2004 Jeep Wrangler
  • Have you tested the 4-Way of the Curt T-Connector Vehicle Wiring Harness # C55363 for your 2004 Jeep Wrangler apart from the trailer, or do you just connect the trailer and see an issue? If the problem is only occurring when the trailer is connected to the Curt harness then I recommend testing the Curt 4-Way to make sure it has all of the functions. If it does then your problem is likely a bad connection or damaged wiring somewhere along that circuit. If you apply direct 12V power to that...
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  • Ways to Increase Bed Rail Clearance When Towing Fifth Wheel Trailer
  • The Trailair Air Ride 5th Wheel Pin Box # LC158778 that you referenced will work as a replacement for your Lippert 1621 pin box. It will have the same dimensions and mounting holes as your current pin box though so in general it would not give you more clearance. Typically pin boxes can be adjusted up or down in relation to the chassis they are installed on so you may be able to adjust your current one down a hole or two to give you more clearance. Otherwise, fifth wheel hitches have adjustable...
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  • Troubleshooting Roadmaster EvenBrake That Doesn't Pump Brake Pedal During Test
  • When you test the Roadmaster EvenBrake # RM-9400 it should conclude the test by pumping the brake pedal 3 times. It sounds like there might be an issue here with the Roadmaster EvenBrake # RM-9400 and the new vehicle might not have the Stop Light Switch # RM-751452 installed on it, which is required. If you've got the Stop Light Switch installed in the new vehicle and this malfunction is still occurring, let me know and I can give you a few other things to look at to get you back on the road.
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  • Curt 4-Pole Wiring Harness C55363 Installation in 1999 Jeep Wrangler
  • Curt 4-pole wiring harness # C55363 is a correct fit for your 1999 Jeep Wrangler. If you find that the turn signals are reversed for left and right this just means you need to switch the plug-in connectors to the opposite sides of the vehicle. The connectors with the yellow wire should plug in at the left/driver side tail light; the connector with the green wire should connect on the right/passenger side light. For reference I linked an installation video showing a 2004 Wrangler.
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  • Troubleshooting Hopkins Trailer Wiring Harness for 2015 Jeep Wrangler that Doesn't Have Power
  • It is possible there is an internal problem on the # HM56200. With it plugged in use a circuit tester to probe the wires of the harness that go into the converter box and then test to see if the voltage makes it out to the other side of the box. If there is voltage going into the box but not coming out the problem is internal of the box and it would need to be replaced/warrantied. If there isn't voltage going into the box the problem would be connectors not making a decent connection.
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