Need to replace trailer running light fuse on Infiniti qx56 2008, where is it?

The location of the fuse for the running lights on a trailer may vary depending on the make and model of your vehicle. However, here are some general steps to help you locate the fuse:

1. Check your vehicle's owner's manual to determine the location of the fuse box. The manual should also provide a diagram of the fuse box and a list of fuses and their functions.
2. Once you have located the fuse box, open it and look for the fuse labeled "Trailer" or "Trailer Lights." Some vehicles may have a separate fuse box specifically for trailer wiring.
3. If you cannot find a fuse labeled for the trailer lights, check the fuses labeled "Parking Lights" or "Tail Lights." These fuses may also control the trailer's running lights.
4. If you are unable to find the correct fuse, you may need to consult a mechanic or the dealership for assistance.

Remember to always replace a blown fuse with one of the same amperage rating. If the new fuse blows immediately after installation, there may be a wiring issue with the trailer or vehicle that needs to be addressed.

The trailer light connector is spliced into the brake and running lites in the harness where it runs out the rear frame on the drivers side. Check for frayed or broken wires that may touch the frame before you replace a fuse. the fuse is the same for the lights with or without the trailer plug. Owners manual will show you where the fuses are located.

bravo , keep it up!

If you have your owners manual it will be in there.

Headlights must be on for the interior trailer light to work.

Did you check the fuse for the trailer tow adapter paring lamps ? This is a separate fuse powered by a relay, it is not the same circuit as the truck's parking lamps.
This is fuse # F10 & The half size ISO relay, R201 in the fuse panel in the passenger side kick panel.
This is based upon being a new body style 2004, not the 2004 Heritage or Lightning models, those are different fuse & relay locations.

There is a fase under the hood marked trailer tail lights,it is a 15amp fuse and if continues to blow ther is a problem in the trailer wireing or the plug on the trailer.

There are seperate "trailer" fuses in the fuse box in the engine compartment. Separate fuses for trailer left, right and running lights.

Check all fuses, I had the same issue before.

Good luck.

Also try http://www.etrailer.com/faq-wiring.aspx. They have a great website with lots of info.

My 2004 f150 has the factory tow package. It has a fuse for the trailer running lights seperate from the truck running light fuse.
Check, you may have the same set up...