If you are looking for the fuses on your 2015 Chevrolet Silverado 1500 that are tied to your trailer wiring then those will be in the fuse box in the engine compartment. You can find this information as well as a list of what all the fuses are tied to in your copy of your owner's manual..
Simply so, do trailer lights have fuses?
Yes, trailer wiring harness #118269 does have a fuse in a black holder just below the large black converter box. If that fuse is fine then use the vehicle owners manual to find any fuses related to tow package wiring on the vehicle to check them.
Additionally, why does my trailer light fuse keep blowing? Expert Reply: You have a short circuit somewhere that is causing the fuse to blow. If it does blow the fuse then the issue is on the vehicle. Likely causes of a short on a vehicle include a dirty or corroded trailer connector or damaged wiring.
Keeping this in view, why are my running lights not working on my trailer?
If there is no power on the running light pin then there is a break or loose connection somewhere between the connector and where it terminates at the front of the vehicle that you will need to track down. Running jumper wires from the light grounds to the main trailer connector ground can help.
How do I find a short in my trailer wiring?
Use an ohm meter, and check all the wiring for continuity to ground. If your running lights are blowing the fuse, and the brake & turn signals work fine your brown trailer wire is shorted to ground somewhere, or you have a grounded running light on the trailer somewhere.
Related Question Answers
How do you test an electric brake controller without a trailer?
How to Check a Brake Controller Without a Trailer - Press down on the brake pedal while watching the brake controller.
- Check the fuse to the controller if the display does not light up.
- Go to the trailer connector on the back of the tow vehicle with your multimeter.
Does a trailer ground through the ball?
Does Trailer Lighting Ground Through the Hitch Ball. In some cases trailer lighting will ground through the hitch ball but that's typically only if the actual ground circuit is insufficient. This is not an ideal setup. It needs to ground through the wiring of the trailer harness.How do you remove an interior fuse box?
The interior fuse box is on the driver's lower left side. To remove the fuse box lid, pull it toward you and take it out of its hinges. The under-hood fuse box is located near the back of the engine compart- ment on the driver's side. To open it, push the tabs as shown.Where is the fuse box on a 2015 Chevy Tahoe?
The underhood fuse block is located in the engine compartment, on the driver's side of the vehicle.Where is the fuse box on a 2014 GMC Sierra?
The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.Where is the fuse box on 2016 Chevy Silverado?
The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.Do tail lights and brake lights use the same bulb?
In other words, the same external covering is over both lights. Your vehicle's might be a bit unique, with separate globes. Tail lights are engaged when the you turn on your headlights or when your parking brake is on, whereas the brake lights will light up immediately when you apply pressure to the brakes.What causes running lights not to work?
Common causes for this condition is a loose fitting bulb inside the socket. If the bulb flickers tighten the socket or replace the bulb/socket to regain proper operation. If the complete system flickers (all bulbs flicker) wiggle the tail light fuse, relay and associated wiring at the headlight/tail light switch. Do LED trailer lights need to be grounded?
Yes, the second wire will need to be grounded to complete the circuit for the LED Clearance Light, # MCL36AB. If your trailer connector does not have a ground attached to the trailer frame you will need to find the common ground wire for trailer lighting and splice the wire from the clearance light into that wire.How do you ground a trailer light?
Helpful Expert Reply: Each lamp needs to be grounded either through its mounting studs being in direct contact with the trailer frame or by having a jumper wire ran from the lamp to the trailer frame. Ground the trailer connector at the front of the trailer, which will use the trailer frame as a ground wire.What color is the ground wire on a trailer?
Brown wire to the tail or parking lights. Green wire to right turn signal/brake light. Yellow wire to the left turn signal/brake light. White wire to common or chassis ground.What is the brown wire on trailer lights?
Typically, when a trailer has a green/brown wire and a yellow/brown wire, they are both used for the running light circuit. The green/brown wire is ran down the right side of the trailer and the yellow/brown wire is ran down the left side of the trailer for the tail lights and marker lights. 
