Troubleshooting Trailer Light Blinkers Not Functioning With Cars Turn Signals
Question:
My trailer lights are working, however they dont respond to the car turning signals, flash light and break. Is there any steps to troubleshoot this issue? I checked the connector and it had some dust inside which i cleaned with a small metal brush. But the problem persisted. Thank you in advance.
asked by: Jamal
Expert Reply:
First you will need to determine if the problem is on your vehicle or your trailer. You can test this by using the Circuit Tester # PTW2993. This will allow you to test your trailer connector for voltage in the correct places when the taillight functions are applied. You will need someone to help you that can sit in the cab run through all of the functions to make sure they're wired correctly.
If the voltage is working on the vehicle than the problem will be on the trailer. I honestly suspect that the problem you're experiencing is ground related. I would run the grounds of each light assembly back to the main ground wire of the trailer connector you installed. Another option would be to check if the trailer wiring harness is wired to match the connector at the back of your vehicle.
If you have any further questions please feel free to reach back out to me anytime and I would be more than happy to further assist you in your towing endeavors.
(click to enlarge)
Products Referenced in This Question
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: Blue Ox Avail Tow Bar Installation - 2015 Jeep Wrangler Unlimited
- Shop: Trailer Wiring Junction Box
- Q&A: How to Establish Ground Connection When Re-Wiring Aluminum Trailer
- Video: Review of Vitrifrigo RV Refrigerators - Stainless Steel RV Mini Refrigerator - VT54FR
- Video: Review of Vitrifrigo RV Refrigerators - Black RV Mini Refrigerator - VT34FR
- Video: Spectro Trailer Wiring Junction Box Installation
- Shop: Vitrifrigo C115i OCX2 RV Mini Fridge with Built-In Freezer - 4.2 cu ft - 12V - Stainless Steel
- Shop: Vitrifrigo C85i RV Mini Fridge with Built-In Freezer - 3.2 cu ft - 12V - Black
- Video: Review of Jensen RV and Marine Stereo - Stereo Only - JHD40BT
- Q&A: Should an Electric Trailer Jack Run Off of a Trailer Breakaway Battery
- Q&A: Could Breakaway Battery on Trailer Power A-Frame Trailer Jack
- Video: Review of Optronics Snap On LED Light Strip Connector - A90P1B
- Shop: Junction Box and Installation Kit for Autowbrake Trailer-Mounted Electric Brake Controller
- Shop: Pollak 10-Terminal Junction Box
- Shop: 7-Way Molded Trailer Wire Connector, 4' Long
- Shop: Jensen Heavy-Duty Mechless Marine Stereo - Bluetooth, Weatherband, AUX - 15 Watts - 12V
- Video: Jensen Boat Accessories - Electronics - JHD910BT Review
- Shop: Trailer Hitch
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Trailer Wiring Diagrams
- Search Results: trailer lights
- Q&A: Recommended Westin HDX Nerf Bars for a 2021 Ram 1500 Quad Cab
- Search Results: 25580
- Shop: Trailer Wiring
- Q&A: Best Way to Prevent Sagging Suspension When Towing a Trailer
- Search Results: junction box
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Suspension Enhancement
- Shop: Brake Controller
- Q&A: What is the Difference Between Over 80 inch and Under 80 inch Trailer Tail Lights
on Accessories and Parts
