Troubleshooting Curt T-Connector Not Working on a 2017 Dodge Grand Caravan
Updated 02/17/2026 | Published 06/12/2024
Question:
I bought CURT 56331 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Chrysler Town and Country, Dodge Grand Caravan , Black,Rubber fror my 2017 Dodge Caravan a couple years ago and the trailer lights dont work. It seems to be a grounding issue. I follow the instructions on installation with installing the grounding wire to the metal body panel so I am wondering if the module is now bad and that is why I am my trailer lights do not work. Thanks
asked by: Reid S
Expert Reply:
Hey Reid, thanks for reaching out!
It is possible that the Curt T-Connector Vehicle Wiring Harness # C56331 is bad, but if you suspect a ground issue then I recommend trying to make sure the metal where the ground is installed is bare metal. If you do have it connected to bare metal then I recommend trying a new ground spot to see if that resolves the issue.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- CURT
more information >
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Brooke M.
2/17/2026
Hey Reid, did trying a new ground spot fix the issue with your trailer lights and the Curt wiring harness? Knowing what worked could help others troubleshoot similar grounding problems.