Troubleshooting Running Light Circuit for Curt Flat Tow Wiring on 2019 Ford Ranger
Question:
I recently purchased from you everything I need to flat tow my 2019 Ford Ranger Lariat. I started with the tail light kit and ran into a problem. The right side running lights brown wires are not working. There is voltage from the vehicle to the butt connector but nothing at the brown to Module. Same issue with truck off and power from 4-flat connector left side brown is hot, right side is dead. I do not have a schematic of the Curt C63CR so I am reaching out to you guys for help. Im guessing maybe a bad diode or maybe mislabeled to and from on the right side browns. Thanks in advance for your help.
asked by: Bob F
Expert Reply:
That definitely doesn't sound good. The brown wires on both sides of the Curt Universal Tail Light Wiring Kit # C63CR should be sending signals since it's for different tail light sides on your 2019 Ford Ranger.
It could be a bad diode but it could also be damaged wiring. I recommend adding 12V power to the 4-Way pin with the green wire and then checking the green wire at the butt connectors to see if the signal gets to the end of the wiring. This tells you if the issue is that diode/module or if the brown wire is just damaged and needs repairing.
I've attached an installation video of this kit on a 2020 Ford F-150 that you can use to assist for the installation as well.
Product Page this Question was Asked From
Curt Universal Tail Light Wiring Kit for Towed Vehicles
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Wiring Harness
- Universal
- Tail Light Mount
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Wiring
- Search Results: wiring harness tow bar wiring
- Shop: Curt Universal Tail Light Wiring Kit for Towed Vehicles
- Shop: Trailer Wiring
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Video: Curt Universal Tail Light Wiring Kit Installation - 2020 Ford F-150
- Search Results: trailer hitch
- Video: Trailer Hitch Installation - 2001 Honda CR-V
- Video: Trailer Hitch Installation - 2000 Honda CR-V
- Shop: Trailer Hitch
- Search Results: tow bar wiring
- Shop: LCD Digital Circuit Tester
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Curt Cam Buckle Stabilizing Strap for Hitch-Mounted Accessories - 61" x 1" - Qty 1
- Shop: Draw-Tite Sportframe Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4"
- Shop: etrailer Hitch Pin Alignment Collar for Hitch Accessories - 2" Hitches
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: Base Plate for Tow Bar
- Video: Performance Tool LCD Digital Circuit Tester Review
- Q&A: Can Curt Tow Bar Wiring Kit C63CR Install on Truck with Separate Turn Signals Brake Lights
- Search Results: road master tow bar brackets
- Search Results: towed vehicle wiring
- Q&A: Why Do Some Trailer Tail Lights have 3 Wires and Some have 2 Wires
- Q&A: Installation Troubleshooting of Curt Universal Tail Light Wiring Kit on 2013 Lincoln MKS
- Q&A: Are Diodes of Curt Universal Tail Light Kit part # C63CR Designed to be Replaced
- Q&A: No Running Lights on Toad Vehicle but All Other Lights Work
- Q&A: Troubleshooting Running Light Circuit of Curt Trailer Wiring # C56673 Not Functioning
- Q&A: Trailer Turn Signals Not Working with Curt Trailer Wiring Harness on 2000 Toyota Sienna
- Search Results: 7 pin to 6 pin
- Shop: Vehicle Tow Bar Brake System
on Tow Bar Wiring
