Troubleshooting Turn Signals and Brake Lights Not Working With Running Lights On
Updated 04/12/2022 | Published 04/10/2022
Question:
With tail lights off the turn signals and brake lights work. If the tail lights are on the other functions quit working
asked by: Colt
0
Expert Reply:
Based on what you are describing it sounds like you have an insufficient ground. Make sure your ground connection is secure on a clean, bare-metal surface. This could be on the vehicle side or the trailer side so I would make sure to check ground connections on both.
I have attached a helpful article on troubleshooting 4-way wiring for your reference.
expert reply by:
Robin H
0
Product Page this Question was Asked From
Optronics Load Resistor for LED Lights - Male PL-3 Plug and Pigtail - Qty 1
- Accessories and Parts
- Trailer Lights
- Load-Resistor Kit
- Aluminum
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: 2021 GMC Sierra LED Turn Signals Are Hyperflashing
- Q&A: Wireless Towing Lights That Can Be Used On A Trailer
- Q&A: Locating the Brake Controller Wiring Port on a 2017 Ford E-450 Class C Motorhome
- Q&A: Replacement Water Valve for Dometic 310 Toilet
- Q&A: How Do I Install Load Resistors for the LED Lights on my 2007 Dodge 3500 Flatbed
- Q&A: Recommended Round LED License Plate Light Similar to Optronics Light with Mount Ears
- Q&A: What Bulb Does The Optronics Round Trailer License Plate Light With Mount Ears Use?
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: Trailer Wiring Diagrams
- Article: Trailer Hitch Installation Tips