Does Vehicle Have Fuse for Running Lights
Updated 09/28/2021 | Published 09/27/2021 >
Question:
Is there a fuse for the running lights on the truck? My rear side marker lights are out and the rear marker light is out but not my tail lights.
asked by: Brian T
Helpful Expert Reply:
I am not sure what truck you have but it is very common for vehicles like trucks that have factory trailer wiring to have fuses for the various trailer taillight or vehicle taillight functions. So it could be a blown fuse or it could be as simple of a fix as cleaning off corrosion that has developed on the pins of the trailer wiring.
If you grab the owners manual there will be a section that covers all of the fuse box positions.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Visible
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Recommended Rear Anti-Sway Bar for a 2021 Ram 3500 Dually
- Q&A: Can the Brophy Slide In Camper Tie-Downs Be Used w/ a 2026 Ram 3500 Dually?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Article: Holiday 2025 | Best Gifts for Towers
- Article: Holiday 2025 | Best Gifts for RVing
- Q&A: Trailer Hitch Recommendation for 2024 Chevy Silverado 1500 with Factory Hitch
- Q&A: Recommend Hitch for a 48 Extension on a 2023 Ram 3500
- Q&A: Hitch For 2011 Toyota Tacoma to Replace OEM Hitch
- Q&A: Curt Hitch that Fits 2019 GMC Sierra 1500 with Factory Hitch

