Troubleshooting OL Error Code of Curt Brake Controller
Published 09/12/2023
Question:
Brake controller flashing OL when no trailer is plugged in. And when I plug the trailer in the brakes does not work. How can I fix this
asked by: Jesse
0
Expert Reply:
The flashing O.L. message with the Curt Brake Controller part # C51140 when there is no trailer connected indicates that there is a short somewhere on the brake output circuit. I would check all the connections you made on the blue wire from the controller and then also check the trailer connector at the rear of the vehicle looking for any exposed wire or corrosion and fix as necessary.
expert reply by:
Jameson C
0
