Sometimes after installing some aftermarket wiring the Jeep "tow package" wiring circuit will need to be activated. This can only be done at a Jeep dealer and it sounds like this is what is going on.
You can verify this by checking to see how your current wiring is connected. If everything is splice in then it would bypass all of the factory wiring and I am not sure why you would be testing and getting a signal but your Jeep isn't communicating with your trailer. If the 4-Way and 7-Way... view full answer...
From what I can tell from your description it sounds like what you are going to need is a 2-to-3 converter, the Vehicle to Vehicle Tail Light Converter # C56196 in order to make sure when you hit your brakes the turn signals no longer go on. You are going to need Tail Light Isolating Diode System # 38955 as well in order to prevent power feedback.
You will just need to ensure you install this system behind the 7-way on your trailer; I have added a link to a video review of this converter... view full answer...
There is some troubleshooting I can help guide you with, and though you never mentioned what Tekonsha brake controller you have, I am going to assume it is the Voyager # 39510 because you mentioned the green light going on without your trailer connected.
If this is happening that means the Voyager is picking up a load on the blue brake output wire. This could be a number of issues but I would start by taking a look at the connector on your Grand Cherokee. If there is corrosion on it,... view full answer...
If you are getting power to everything on the vehicle side, you will need to check a few things on the trailer. First and foremost will be the grounds. This should be done for every light and if they are LED lights, each should have its own designated ground connection that is not stacked with other grounds. This is a fairly common practice, but can cause some issues and it is better for each ground to have its own connection.
Next you will need to check the wires coming out of the 7 Way... view full answer...
Many times corrosion can cause problems like you are describing on your 2010 Jeep Grand Cherokee. A loose ground can cause intermittent problems as well. You want to make sure the ground wire is attached to a clean, bare metal surface.
If you find green and/or white corrosion inside the connector, that will probably be what is causing the problem. You will need to clean this corrosion out and make sure the connections are secure.
If you have it cleaned out and find it is working, I recommend... view full answer...
It's pretty common on the 2011 Jeep Grand Cherokee to have the dealer activate the tow package port due to trailer lights not working after the installation of a trailer wiring harness like a Reese Multi-Plug Wiring Harness for Factory Tow Package part # 74682. The fuses are always the first thing to check but if you still don't have proper function you will need to take the vehicle into the dealer for service. view full answer...
Start off by checking the 6-Way connector at the front of your 2018 Jeep JL Wrangler Unlimited. Be sure that none of the wires are touching any wires next to it which would allow power to jump from one circuit to the other.
If that looks good then the next step is to troubleshoot the diodes that come with the Flexo-Coil Wiring Kit # RM-15267. Since the problem is only happening to one side simply remove the diode on the circuit that is messing up and swap it with one on the other side... view full answer...
It sounds like the converter box of the T-One Vehicle Wiring Harness # 118552 that you referenced got shorted out. What you are describing sounds like what happens when a trailer wiring short takes out a converter box. You can use a circuit tester like part # PTW2993 to check for voltage coming in and out of the box to isolate the problem if you like.
You will want to test for voltage on the input side of the converter box with the correct tail light circuits activated and then also check... view full answer...
T-One harnesses, like the Tekonsha # 118539 for your 2014 Jeep Compass, shouldn't have any functional effect on your vehicle's tail lights. With the included Powered ModuLite, the harness draws power directly from the battery instead of your Jeep's electrical system. The Modulite converter is also designed to protect your factory wiring from any potential backfeed coming from the trailer side, in the event there's a short on the trailer wiring.
With all that in mind, it sounds like two... view full answer...
Installing an aftermarket trailer wiring harness like # 118605 on a compatible vehicle such as your 2014 Jeep Cherokee Latitude should not trigger the 'check engine' light. This and similar kits plug in at the taillights and otherwise interact with the vehicle only at the 12V power connection that is made at the battery.
Many things can cause a check engine light to come on. A loose gas cap, filling your tank with the engine running (never a good idea!) or simply touching the active 12V... view full answer...
If the tail lights on your 2019 Jeep Wrangler Unlimited aren't working when hooked up to the RV, it's worth it to first test the 7-Way connector on the RV to make sure this circuit is active. Use a circuit tester like # PTW2979 on the running lights pin to make sure it gets power when those lights are activated.
If there isn't power then the problem is actually on the RV side and the Jeep is good to go. If this is the case you would want to check for any related fuses (you can find their... view full answer...
The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # C55515 is a confirmed fit for your 2014 Jeep Grand Cherokee with a tow package. Since the lights worked and don't work any longer, I recommend disconnecting the Curt harness from the factory harness, and checking the pins of the factory harness with a circuit tester like # PTW2993. Also check for bent pins as this can be the cause of a poor connection. If the functions work correctly... view full answer...
The Even Brake, # RM-9400, sends a wireless signal to the receiver in the motorhome hand held unit and that signal can interfere with other signals. It sounds like the unit is sending a signal either looking for the hand held unit or something similar. You will want to unplug the transmitter from the power source and Even Brake. With no power the unit should not be able to send a signal. view full answer...
A 5-way is not normally an OEM option on vehicles, so there is a very good chance it is not an OEM part. With the pins spread out more, that makes it even less likely to be an OEM 5-way as the plugs have not changed shape or width since 1986.
I recommend using a circuit tester like # PTW2993 to check the wiring functions. I've attached a video to assist. The 5th function will either be reverse light function that will only come on when the vehicle is shifted into reverse, or a brake... view full answer...
You can test the wiring of the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56200 itself. I have included a diagram to help determine where to test. You will want to test the wiring with a circuit tester like the # PTW2993 at the area marked "IN", if you have power there, test the power at the area marked "OUT". If you lose power, then that converter is not working properly. Unfortunately this happens on this type of wiring.
If you find that is the problem, you would be... view full answer...
The Blue Ox Tow Bar Wiring Kit # BLU79FR shouldn't be pulling enough to drain your Wrangler's battery in a short amount of time so you most likely have something else that's draining the battery. That being said, you can easily fix this issue by installing a charge line kit like the Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25.
Since the wire harness you used is only a 4-pole you would need to cut the connector off and wire it into a 6-pole socket like you'd get with... view full answer...
What you're experiencing is a textbook gound issue. The ground connection isn't strong enough to handle the power draw from the brake and turn signals with the running lights on but it's strong enough to handle them with the running lights off.
Improve the gound location on both the trailer and vehicle. Both should be grounded to a clean, bare metal, steel surface. view full answer...
If you have a factory trailer wiring harness the first place you should check is the fuse box on your 2014 Jeep Grand Cherokee Overland. In the engine compartment there is should be a yellow 20 amp fuse in terminal F29. This is the fuse that sends power to the parking lights on your trailer connector.
If the fuse is good or you do not have a factory harness you will want to determine if the fault is on the vehicle side or the trailer side. A Test Light # PTW2992 will help you to determine... view full answer...
Since you're only having issues with your brake light after installing the kit it could be a lose connection of one of the pins so I would first start by checking the pins on on your Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Item # HM56200 for any defects and using some Dielectric Grease # 11755 to form a strong connection.
If this does not solve your problem then the converter box isn't correctly sending signals and will need to be replaced. Since you just purchased this... view full answer...
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... view full answer...
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