Troubleshooting a Turn Signal That Stays Constant When the Headlight are On
Updated 01/12/2026 | Published 09/01/2024
Question:
My turn signal works until I turn on the headlights, then I get a constant light. What could be the problem. It’s a Colman popup camper
asked by: Gerry R
0
Expert Reply:
Hey Gerry, that to me sounds like a bad ground. I suggest checking the ground connections and making sure they are correctly grounded, and that they are not damaged in any way. If they are, re-ground them and check to see if the issue is still happening.
expert reply by:
Bryce D
0
Product Page this Question was Asked From
Peterson Combination Trailer Tail Light - 6 Function - Incandescent - Square - Passenger Side
- Trailer Lights
- Tail Lights
- Brake/Tail/Turn
- Marker
- Square
- Surface Mount
- Non-Submersible Lights
- Incandescent Light
- 4-3/4L x 4-1/2W Inch
- Red
- Peterson
more information >
Continue Researching
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Q&A: Does a Trailer Junction Box Have to be Used when Switching from 4-Way to 7-Way Trailer Connector
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Q&A: Cross Reference Chart for Kodiak Trailer Disk Brake Pads to Automotive Applications
- Q&A: How To Choose Correct Replacement Leaf Springs for a Shorelandr Boat Trailer
- Q&A: Recommended Replacement For An Atwood GC6AA-10E Water Heater
- Q&A: How To Find Replacement Leaf Springs For a Shoreland'r Boat Trailer?
- Q&A: How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
- Q&A: What is 5 on 4-1/2 inch Bolt Pattern for Trailer Wheel
- Article: Trailer Wiring Diagrams
- Article: Replacing the Bearing, Races and Seals on a Trailer Hub
- Article: Trailer Lighting Requirements
- Article: Trailer Maintenance Schedule
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
Robin H.
1/12/2026
Hey Gerry, did re-grounding the connections on your Colman popup camper fix the turn signal issue when the headlights are on? Knowing what solved it could really help others chasing the same problem.