Troubleshooting Curt Trailer Wiring 4-Way part # C55532 Not Functioning After Install
Updated 07/07/2025 | Published 03/06/2025
Question:
I recently installed my curt trailer lights wiring but the trailer lights aren’t turning on, I’m not getting power to the 4 prong plug, what could I be doing wrong or is there an issue with my device?
asked by: Franco R
Expert Reply:
Hey Franco, sorry to hear that your Curt trailer wiring harness part # C55532 isn't working. Did you check to make sure the red fuse is installed into the red fuse holder? Hopefully it's that as that's the easiest fix.
If not, try unplugging and replugging in the connectors that attach to your taillights as maybe it's just an unseated connector not making contact.
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
- Visible
- CURT
more information >
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Franco R.
7/3/2025
I tried this and still no luck, I used a multimeter to test and power gets to the wires going into the little box but no power comes out of the box