Troubleshooting Why Trailer Lights No Longer Work

Question

Question:

the trailer lights ok when towing boat yesterday. Connected trailer cable today... no lights, no brake,signal or running lights. is there a fuse for all lights. where is it located. this is a factory setup.

asked by: Dennis A

0

Expert Reply:

It does sound like you have a blown fuse or bad relay in your vehicle. You can find the fuse panel legend in your owner's manual or ask your dealership where the trailer towing fuse is located. There may be separate fuses used for trailer lighting.

If the fuses and relays check out okay you will want to check the vehicle and the trailer connectors and wiring to make sure they have not been damaged or possibly had the ground wire come loose.

expert reply by: Jeffrey L

0

Answer 1

Wiring harness #118263 is only part of what you would need for your 2015 Nissan Pathfinder. There is also a jumper harness and relays that will be needed to make the harness fully functional and is not included with #118263 since it is for models…

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Answer 2

Sounds like there are some blown trailer wiring fuses/relays under the hood of your 2015 Nissan Xterra that are in need of replacing. Check all of the fuse boxes under the hood of your vehicle for the trailer wiring circuits and replace as needed.…

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Answer 3

If the running light relay is present in the in-cab fuse panel on your 2012 Nissan Frontier and you are still not getting power on the brown wire of wiring harness #118263 then it could be the fuse associated with that relay. The fuse locations and…

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Answer 4

The 9:00 position of your 7-way should have the left turn/brake signal and the 3:00 position should have the right turn/brake signal when a 7-way is wired up in the traditional layout. I attached a picture that shows how a 7-way typically get wired.…

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Answer 5

If the window sticker of the 2011 Nissan Frontier that you are looking at says that it has the factory trailer wiring you should already have the Replacement OEM Tow Package Wiring Harness, part #118263, that you referenced. This product is for…

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Answer 6

Since you have cleaned the connection where the harness plugs in under the vehicle and that made some of the functions start working then that leads me to believe that there is additional dirt and corrosion in that area causing it not to work…

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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 9

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 10

Yep, so long as your 2024 Subaru Crosstrek Wilderness is not a hybrid both the Curt and etrailer hitches will fit: - Curt Trailer Hitch Receiver #C13382 - etrailer Trailer Hitch Receiver #e98912 The only difference besides price is the finish; the…

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Answer 11

To add a class III hitch to your 2024 Honda CR-V hybrid, I recommend the Curt Trailer Hitch item #C13397. This hitch is custom fit and bolts to your CR-V with included hardware. It is a class III hitch with a 2" receiver. I really like this…

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Answer 12

Class I and Class II hitches both have a 1-1/4 inch receiver opening. The difference is that a Class I hitch has a lower tongue weight rating, usually 200 pounds and a lower towing rating, usually 2,000 pounds. A Class II hitch usually has a tongue…

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