Troubleshooting Trailer Wiring Harness for Vehicle Where Pin Stay Active All the Time

Question:

I have a Curtis C 56344 when adding the 10 amp fuse the blinker light stays solid yellow color on the passenger side rear is there something that is not connected properly or is there a short

asked by: Sandra P

Expert Reply:

Whenever a trailer wiring harness has a circuit that stays on all the time that means that the converter box like what comes with the # C56344 has shorted out and you'll have to replace it.

Since these boxes don't short out on their own typically you'll want to go over your trailer's wiring looking for any obvious signs of shorts like corrosion or exposed wire and fix as needed.

We've found that the most reliable brand of trailer wiring is the Tekonsha brand so for a new harness I'd recommend the # 118539.

expert reply by: Jameson C