Right Signal on Trailer When Either Signal is Activated
Updated 02/06/2017 | Published 02/04/2017 >
Question:
I have a 2014 Chrysler 300 S. I bought a Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector from etrailer. The tail lights and brake lights work as they should. The hazards work as they should. However, activating either turn signal on the stalk produces a right turn signal on the trailer. The installation seemed very straight forward. Im not really sure what could be screwed up here.
asked by: SAM
Expert Reply:
Sounds like somewhere on trailer the left and right turn circuits are shorting out to each other. Most likely this is on the trailer side, but you can use a circuit tester like part # PTW2993 to test both turn signal pins to verify that either carries the right voltage when applied like the video I attached.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Q&A: How to Test Brake Controller without Trailer Connected
- Article: Trailer Wiring Diagrams
- Article: Brake Controller Installation: Starting from Scratch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Trailer Lights Left Side Turn Signal and Brake Lights Not Working
- Q&A: Troubleshooting Blown Vehicle Fuses Every Time Trailer is Connected
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Q&A: How to Hook Light Bar Up to Work with High Beams on Vehicle
- Q&A: Working Running Lights, But No Turn Signals or Brake Lights On Trailer
- Q&A: Troubleshooting No Running Lights on Trailer but Turn Signals and Brake Lights Work
- Article: Testing Trailer Brake Magnets for Proper Function


