Curt TriFlex Brake Controller C24VV Does Not Show Red Dot on Display After Installation
Question:
I installed the Curt TriFlex controller with pigtail to fit my 2007 Chevy Silverado the installing was a breeze, but when I was done and it said the red dot should light up there was nothing. What is my problem
asked by: Dale B
Expert Reply:
The Curt TriFlex Trailer Brake Controller, part # C24VV, and the matching harness for your 2007 Chevrolet Silverado Classic, part # C51352, will work with your vehicle as long as your 7-way connector on your rear bumper is not the type that includes LED test lights. Such 7-way connectors are not compatible with the Curt TriFlex.
It is critical that before installing the controller the negative battery terminal be disconnected to avoid potential damage to the unit. Also, the trailer must be disconnected from the tow vehicle before installing and testing the TriFlex.
A blank display can indicate a bad ground connection, or no power to the unit. You can use a circuit tester like # PTW2993 to confirm if 12V power is reaching the brake controller. The black wire leading into the controller carries the input power from the vehicle. You should detect 12Vpower on the black wire. If there is power going into the controller but it shows nothing at all on the display, then the unit may be damaged. You can also use a circuit tester to verify that power is present at the OEM connector. (This will tell you if the problem is in the harness.) You should be able to get a continuous 12V power reading on one pin/slot, a reading on a second pin/slot only when the brake pedal is pressed (this is the signal from the brake light switch). At least two other pins should have no power present. You might refer to the linked troubleshooting article.
If no 12V power is reaching the harness or controller you may need to install a missing fuse required for the 12V circuit. Check the power distribution block in the engine compartment for any fuse or relay locations that could be missing a fuse/relay. The installation instructions for the controller are included for reference.
Products Referenced in This Question
Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- CURT
more information >
Product Page this Question was Asked From
Curt TriFlex NEXT 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
- LCD Display
- Up to 360 Degrees
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Q&A: Where is the Fuse for Trailer Power Located on a 2004 Chevy Silverado
- Q&A: Troubleshooting Curt Triflex Brake Controller Not Working After Battery Change
- Q&A: Troubleshooting Two Dashes on Curt TriFlex Brake Controller
- Q&A: How Does Curt TriFlex NEXT Brake Controller Mount
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Q&A: Should I Get a Proportional or Time-Delayed Brake Controller
- Q&A: Which Blue Ox Weight Weight Distribution System for Lance 1475 Trailer
- Q&A: Recommended Plug and Play Adapter for a Curt Brake Controller on a 2019 Ram 1500
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: Brake Controller Installation: Starting from Scratch
- Article: How to Measure for Trailer Hitch Drop
- Article: 5 Things to Know About Weight Distribution Hitches