Troubleshooting OL Code on Brake Controller
Question:
I am getting code OL, I had a friend hook up his truck to my trailer and it works fine.It’s in my truck.I reset the controller, it resets,the two little dots come on and as soon as I hit the brake pedal or the manual slide OL appears.I tested the ground, 12V constant and 12 V when I hit the brake it goes on and off when I release. The blue has no power at all, even hitting the brake pedal. I read the blue wire is at fault so I cut it right at the controller and figured the OL would go away and it still comes on..I even bought another controller still the same.I replaced my trailer connector harness and socket all works with the exception no power to the blue wire. I went over the harness from the rear trailer connector over the frame rails to the brake controller and all looks good.I never towed a trailer with electric brakes on this truck and it only has 30k miles.I’m exhausted and I think my next option is to bring it to the dealership,which they will use a different aftermarket controller and they said it has to be programmed. I know this is not true and are going to take advantage of me.Thank you
asked by: Gary
Expert Reply:
The OL code means that the brake controller, like the Prodigy P2 # 90885, is overloaded so your wiring is messed up somewhere. I would check your ground wire to make sure it's securely connected to a bare-metal area. If that looks good then the next step I recommend taking is replacing the current blue output wire from the brake controller back to your 7-Way connector. To do this you'll need 10 Gauge Wire # 10-1-1 and Butt Connectors # DW05745-5.
Products Referenced in This Question
Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 5
- Wiring
- Wire Connectors
- Butt Connectors
- 12-10 Gauge
- Deka
more information >
Product Page this Question was Asked From
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Video: Hayes Engage Trailer Brake Controller Installation - 2021 Ford Explorer
- Article: Troubleshooting Brake Controller Installations
- Video: Curt Venturer NEXT Trailer Brake Controller Review
- Shop: Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed
- Shop: Hayes Engage Trailer Brake Controller - 1 to 3 Axles - Time Delayed
- Q&A: Troubleshooting Reese Brakeman IV Electric Brake Controller
- Article: Trailer Wiring Diagrams
- Shop: Curt Venturer NEXT Trailer Brake Controller - 1-3 Axles - Time Delayed
- Shop: Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket - Vehicle End
- Video: Hayes Energize III+ Trailer Brake Controller Installation - 2022 Ram 1500
- Video: Pollak Wiring - Trailer Connectors - PK12-704 Review
- Video: Pollak Wiring - Trailer Connectors - PK12702 Review
- Video: Hayes Brake Controller - Time Delayed Controller - HA81760 Review
- Shop: Curt Heavy Duty Forged Ball Mount for 2-1/2" Hitch - 2-5/16" Ball - 4" Drop - 20K
- Shop: Hopkins 7-Way RV Style Connector w/ Molded Cable and LED Test Lights - Trailer End - 8' Long
- Shop: Curt 7-Way RV-Style Trailer Connector - Vehicle End
- Video: Trailer Connector Socket Installation - 2017 Chevrolet Silverado 1500
- Q&A: Troubleshooting CP Code on Hayes Engage Trailer Brake Controller
- Q&A: Should a Brake Controller Blue Wire have Voltage All the Time
- Q&A: What Does an Intermittent Flashing OL Code Mean for a Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: brake controller
- Search Results: trailer brake controller
- Shop: Trailer Hitch
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Suspension Enhancement
on Trailer Brake Controller
