Troubleshooting Curt TriFlex Brake Controller Not Showing Activation

Question

Question:

Just took the car for a ride and still doing the same. Decimal point when I slide override over and when driving applied brakes and still no decimal point. I know nothing is a guarantee but I used the adapter to go between the controller and the plug for the brake controller in the car. Shouldn’t that give me good connections and would the decimal light up when I slide the manual override if I had bad connections.

asked by: Ted L

0

Expert Reply:

On your Curt TriFlex Trailer Brake Controller # C24VV, the decimal point as you put it is standby mode with no trailer connected. The blank screen is also standby mode and that screen is what is seen when simply starting the vehicle, but that screen should illuminate when you press the manual override or show the decimal point when you hit the brake pedal only while moving since it is a proportional controller. If it does not operate under those criteria, then you will need to have the installation checked as it would not be receiving power or ground correctly.

I've attached a photo of the manual that shows this.

expert reply by: Jason S

0

click to enlarge

Ted

5/1/2020

Just took the car for a ride and still doing the same. Decimal point when I slide override over and when driving applied brakes and still no decimal point. I know nothing is a guarantee but I used the adapter to go between the controller and the plug for the brake controller in the car. Shouldn’t that give me good connections and would the decimal light up when I slide the manual override if I had bad connections.

Reply

Jason S.

5/1/2020

I appreciate you following up. Since you have the wiring harness, it sounds like there is a wiring issue and you will need to check your owners manual. I have looked for fuses and haven't found anything specific for your brake controller but there is a trailer mode they say needs to be selected that may have an impact on the power to your controller. You can test your brake controller itself with a bench test using the attached help article.

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Answer 3

It sounds like you are getting enough power to the unit and in fact may be getting too much power as it stated electrical overload. Curt recommends when you get that signal that the trailer wiring be inspected as there may be an issue with the…

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Answer 4

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Answer 5

You should only be seeing 12 volts on the blue wire on the brake controller, #C24VV, when the manual override is used. If there is constant power all the time then there is either something that is miswired or a problem inside the controller and it…

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Answer 6

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Answer 7

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Answer 8

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Answer 9

I think you are going in the right direction. I would definitely replace the 14 gauge wire going to the trailer brake magnets with 10 gauge wire or larger. Usually larger than 10 gauge is hard to get into the trailer connector though. I would also…

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Answer 10

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Answer 11

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Answer 12

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Troubleshooting Curt TriFlex Brake Controller Not Showing Activation

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