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Troubleshooting Blown Fuse on Curt T-Connector Vehicle Wiring Harness  


Had a short in trailer lights and blew fuse. Now running lights are powered all the time with lights turned off. Is there a fix for this or do I need to replace converter box.


Expert Reply:

If you haven't already, I would start by replacing that fuse. The # C56407 uses a 10 amp fuse. I'm assuming you repaired the short in the wiring as well so I would see if it works after the fuse is replaced. If it still doesn't work, it was probably damaged and should be replaced.

For a replacement on your 2018 Jeep JL Wrangler I would choose the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118786. When it comes to wiring we have found Tekonsha to be the most reliable option. The installation process will be the same as your old Curt wiring harness.

expert reply by:
Robin H

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