Troubleshooting Curt Trailer Wiring Install Where There is No Power to Anything

Updated 10/30/2025 | Published 02/16/2025

Question:

I have installed this in my vehicle but I have no power. My car lights still work but I have no power to the 4 prong for trailer lights. I have taken it apart checked my grounds, redid connections and re ran everything while outside of the vehicle and I still have nothing to the trailer lights. Let me know if I am missing something.

asked by: Drew G

Expert Reply:

Hey Drew, you didn't mention the power wire of the Curt trailer wiring kit part # C93ZV. Did you run that up to the vehicle battery positive post? If everything isn't working that would be my first guess as to where the problem is.

expert reply by: Jameson C

Jameson C.

10/30/2025

Hey Drew, did running the power wire up to the battery fix the issue with your trailer lights? Knowing what solved it could really help others troubleshooting the same wiring kit.