Troubleshooting Running Light Circuit Not Working on Trailer
Updated 05/12/2020 | Published 05/03/2020
Question:
Is the problem with my truck or trailer Trailer won’t light side markers or running light
asked by: Frank C
1
Helpful Expert Reply:
It's very possible you blew the trailer running light circuit fuse on your vehicle. You might check that first. Next likely scenario is that you have corrosion on the running light circuit pins of the trailer wiring connector you have as well. Clean that and that should take care of it.
I also attached a help article on trailer wiring for you to check out as well.
expert reply by:
Jameson C
1
Product Page this Question was Asked From
16 Gauge, 4 Conductor Bonded Parallel Wire - Per Foot
- Wiring
- Wire
- Bonded Wire
- 4 Wire
- 16 Gauge
- Deka
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: How to Bleed Your Trailer Surge Brakes
- Q&A: Roadmaster Parts For Flat Towing 2023 Ford Edge ST
- Q&A: Testing The Dexter Electric Over Hydraulic Brake Actuator
- Q&A: What Wire Colors do I Need to Attach for Installing Roadmaster Smart Diodes in 2024 Sierra 1500?
- Article: Trailer Lighting Requirements
- Q&A: Can I Use an Adapter to Plug the 30 Amp ActiveStart Plug-In Soft Start to a 50 Amp Plug?
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: How do Safety Chains Attach and Remove from Trailer Frame
- Q&A: Parts Needed to Flat Tow a 2017 Subaru Crosstrek Behind an RV
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Q&A: How To Power A Third Brake Light With Diode Wiring While Flat Towing
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Article: 7 Common Questions Everyone Has About Trailer Tires
Frank C.
5/12/2020
Had to replace circuit breaker under hood for trailer running lights. Thanks for advice