On some Nissan vehicles there is an additional relay needed in the in-cab fuse panel to make it fully functional. Consult the vehicle owners manual to find the locations of all fuses and relays associated with tow package wiring. It is also possible that, even if all the relays and fuses are in place, that one of them is bad and will need to be replaced. If there is a missing relay then it can be replaced with a blue relay from # C57000.
If it is the lights on the trailer that are not... view full answer...
First, you can verify if your 2006 Nissan Frontier came with a factory tow package by having a dealership run the VIN number to tell you what options it came with. If it did come with a factory tow package, it could be that the relays associated with the tow package running lights needs to be replaced. If it did not come with a tow package, then that relay may be missing. You can check the locations of the relays in the owner's manual.
You can use a circuit tester like # PTW2993 if needed... view full answer...
It really sounds like you are missing the two blue relays like part # 38666-1 from the relay box under the hood of your 2005 Nissan Frontier. I would recommend you double check that you replaced the correct relays. In some of the Nissan relay boxes there are two sets of blue relays. It is possible that you replaced the wrong set of two.
Another possibility is that the grounds of your trailer aren't sufficient. Check the grounds of your taillight assemblies, make sure they are connected... view full answer...
The most common cause of no trailer running lights on a 2014 Nissan Frontier is a faulty blue relay, so this would be the first thing I check. This relay is located behind the passenger floorboard kick panel which you can see in the attached photo. If this is missing or faulty, you can get one from the Curt Relay Kit # C57000. If this is not the issue, then please let me know and I would be happy to provide further troubleshooting advice. view full answer...
On certain Nissan vehicles like yours an additional blue relay is sometimes needed to activate the trailer running lights circuit. This appears to be the case with your 2018 Nissan Frontier since this circuit isn't active. This is a very common issue surprisingly.
For the relay by itself you can use part # 38666-1 and the harness you need to access to plug the relay in is indeed located in the cab behind the panel to the right of the passenger's foot panel.
It sometimes can be located... view full answer...
I can help you with your wiring harness on your 2016 Nissan Frontier.
We have seen this issue on some Nissans. When they wired the vehicle end plug, they switched the blue and black wire locations on that black plug.
What you will need to do is swap the wires. There are a couple ways to do this, we have a Help Article that I have linked that outlines them step by step for your convenience. view full answer...
The error codes shown on the Hayes Engage Trailer Brake Controller part # HA81760 can be easily deciphered by looking at the owner's manual. Per the manual, "bF" indicates the blue wire is connected to wrong place, short in wiring / connector, faulty or disconnected breakaway switch. The blue wire is the brake output wire that runs from the brake controller to the 7-way and then from the 7-way to the braking assemblies. Therefore, I recommend tracing this wire to ensure there are no shorts... view full answer...
You do need to install that last blue relay you have. For whatever reason Nissan likes to randomly leave this circuit open and not include the relay to activate the trailer running light circuit.
I have attached an image of this relay location along with a helpful installation video that you can check out as well. Please let me know if the issue persists and I will be happy to look into this further. view full answer...
There are a number of steps you will need to take in order to troubleshoot the lack of tail lights on your trailer. In order to determine the specific problem you will need to purchase a circuit tester if you do not have one - the very handy Cordless Circuit Tester # PTW2979 would be my strong recommendation due to how easy it is to use - and test the connector on your vehicle after disconnecting it from your trailer. Check the wiring going into your harness from your tail lights to see... view full answer...
It sounds like you are using some sort of plug-in LED tester like the Brophy Circuit Tester for 4-Pole Flat Trailer Connector part # F4CT and if that is the case then these are not always accurate and Tekonsha even recommends against using these, so you really need to do your testing with a incandescent circuit tester like the Draw-Tite Circuit Tester part # PTW2993. If you still do not get power on the right stop/turn circuit even with a standard circuit tester then be sure to give all... view full answer...
Since the T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 118281 is a quick plug and play style connection I would first check the pins in each connector and ensure none are bent, missing, and that there isn't any debris blocking the connections. You can use some Dielectric Grease # 11755 to ensure a proper and waterproof connection.
Next you can test the pins at the 7-way using a tester like the # PTW2992 to see if the signal is being sent or is getting lost somewhere before... view full answer...
You would need the part # 118266 which includes the additional relays you will need as well as the additional harness that your 2012 Nissan Frontier does not have currently. view full answer...
It sounds like you have a blown relay on your 2014 Nissan Frontier. As all the circuits are working with exception of the charge line circuit this is generally a sign of a damaged fuse or relay.
You will need to check the relay M in the engine fuse compartment as well as the relays in R13 and R14 in the engine relay compartment also under your hood. For an aftermarket harness there will be relays under the passenger side kick panel in front of the door that will also need checked.
If... view full answer...
The first thing I would do is test the circuits of the 4-way on the Tow Ready Wiring Harness part # 118362 with a circuit tester like part # PTW2993. This will tell you if the problem is on the vehicle or the trailer. To see how this would be done check out the video link I attached.
If the voltage is there like its supposed to be then you know the problem is on the trailer wiring. The first place to check is the grounds of the light assemblies. A weak ground can cause taillights not to... view full answer...
The first thing I'd check is that the brown relay is fully pushed into the socket of the fuse block between the battery and the firewall as shown in the provided photo. If the relay is fully seated, then check the main fuse panel under the hood, the underside of the lid should have a legend on it that lists the fuse locations and what circuits each protects. Look for a location listed as 'trailer tow' or 'trailer 12V', which should be a 20-40 amp fuse. Make sure a fuse is installed in that... view full answer...
I called Tekonsha and they said they have had one other customer with this issue while using the T-One Vehicle Wiring Harness part # 118778 on a 2019 Honda Ridgeline. The cause of this issue was a bad converter box so that may be what is causing your running lights not to work as well. I also took a look through the instructions and compared them to the Curt T-Connector Vehicle Wiring Harness part # C56365. It looks like each manufacturer recommends installing fuses in different places... view full answer...
Typically a 4-pole flat trailer connector on a vehicle carries only lighting functions (stop light, running light and turn signals). Electric trailer brake signals from an in-cab brake controller require an additional circuit (and an additional wire) to send those signals to the trailer brakes. Usually a 5-, 6- or 7-way connector is employed to include this function. Please refer to the linked article on trailer wiring; this shows the various vehicle-side and trailer-side connectors and... view full answer...
It is indeed normal. After about 10 or 15 minutes of inactivity, the controller will go into a sleep mode where there is almost no battery draw. In order to run down the battery to the point where it would cause problems, the vehicle would have to sit for several months.
The controller is directly connected to the battery as a safety measure. It's very important that the controller isn't inadvertently turned off-if it were turned off or unplugged and you forgot to plug it back in, it could... view full answer...
I suggest you test both your vehicle wiring and trailer lighting separately to find the cause for the lighting issue you're having. Separate testing tends to make it easier to isolate the problem.
To test the vehicle's wiring you will use a circuit tester like # PTW2992. The linked video illustrates use of the tester. Have a helper sit in the Frontier to activate the lighting functions one at a time while you apply the grounded tester's probe to the appropriate pins on the wiring connector.... view full answer...
The issue with the brakes locking up is not a faulty relay. The electric brake and battery charge wires in the main harness are reversed on all Nissan Frontiers that requires the use of Harness # 118266.
We have a help article about this issue that I have linked for you, which describes the exact steps you will need to take in order to isolate the problem and make a simple repair. view full answer...
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