Troubleshooting Trailer Wiring that Doesn't Work with Key On
Updated 08/15/2025 | Published 07/27/2025
Question:
When i hooked up my harness on a 2025 jeep wrangler it works on accessory but when I start it I have nothing curt 56407
asked by: Rick K
0
Expert Reply:
Hey Rick, that's really a pretty odd problem to have from your Curt trailer wiring harness part # 56407. Do the taillights of your Jeep also still work when the vehicle is on? Where do you have the red power wire of the harness ran to on your Jeep?
expert reply by:
Jameson C
0
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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Jameson C.
8/15/2025
Hey Rick, did you get a chance to check if your Jeep's taillights work when it's on? I'm curious because it might help others with similar issues.