Troubleshooting D.C and C.C. Messages on Curt Triflex Trailer Brake Controller

Question

Question:

When I step on the brake it briefly shows power level and then flashes d.c. And then flashes c.c. What would cause this? Thanks

asked by: Rocky

0

Expert Reply:

I recommend starting by checking both the tow vehicle side and trailer side connectors. Check to make sure that they are free of any debris or corrosion, cleaning out as needed. The D.C. message you are getting on the Curt Triflex # C24VV indicates no trailer brakes. This is typically caused by a loss of trailer connection, unplugged or bad wiring. If there is corrosion inside the vehicle or trailer connector, this will lead to a bad connection which might be what is causing these error messages. The C.C. that flashes is not necessarily an error message, but an indication that the controller is checking the calibration.

If the connectors look okay or cleaning them out doesn't resolve the issue, I recommend testing the brake circuit pin of the vehicle connector with a circuit tester like # PTW2993. Test to make sure it is receiving power when the manual override lever is triggered on the brake controller.

If you find you aren't getting proper power at that pin, I recommend moving closer to the brake controller, cutting the blue wire about 10 inches from the controller and testing it there. If you still are not getting power, then the controller itself is likely bad and will need to be replaced. If you do get power there, then there is a damaged wire somewhere between there and the connector. You will simply need to trace down the bad section and repair.

If you are still unable to fix the issue, please let me know and I will be happy to look into this further.

expert reply by: Chris R

0

Answer 1

The blue wire coming from the brake controller to the trailer brakes is the brake power output wire used to tell the trailer to apply the brakes once given the response from the brake controller. Therefore, you should not have a constant charge to…

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Answer 2

When the display flashes a d.C. code, it means no trailer is connected (or at least that's what it's detecting). This could be either because the trailer connection has become unplugged, there is a bad pin, a bad wire or the trailer brake…

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Answer 3

First thing to check is to see if your truck's third brake light is still working when you hit the brakes. When the fuse for that circuit goes on GM trucks like your 2014 model it will prevent the brake controller from activating when the brakes…

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Answer 4

The install harness part #C51436 is the correct harness to install the Curt Triflex part #C24VV in your 2018 Ford F-150. What I would do is verify the controller wiring has power on the black wire as this is the power circuit for it. You'd want…

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Answer 5

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 6

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 8

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 9

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 10

To install a Redarc Tow Pro Liberty in your 2023 Toyota Tacoma Sport you will need the following parts: Redarc Tow-Pro Liberty Brake Controller item #RED24FR Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers item #RED99FR…

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Answer 11

Congrats on the new motorhome Edward! SnapPad doesn't have the 2026 Allego Red 38 KA in their system so I don't know what size your jack feet are. However, we have a few options that will work with the HWH leveling systems. What you'll…

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Answer 12

You're right, the mounting bracket is unique (in a good way) for the Curt TriFlex NEXT Trailer Brake Controller #C24VV. The bracket is smaller and all you do is put the included adhesive tape on the bracket and stick it wherever you like under…

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Troubleshooting D.C and C.C. Messages on Curt Triflex Trailer Brake Controller

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