Troubleshooting Tow-Pro Liberty Recalibrating After Trailer Disconnect

Question

Question:

I have the Redarc unit installed in a 2008 Toyota Tundra SR5 CrewMax 4x4 5.7L V8, using the factory tow-brake connections. The system works perfectly when in operation, and installation was easy. My question: It seems that every time I attach a trailer, the system goes back through the entire recalibration process. This only seems to happen if I disconnect the trailer and drive the truck alone, then reconnect the trailer, not just from turning off the ignition as when stopping at a gas station, for example. As I live not far from the freeway, and only apply the brakes 6 or 8 times between my house and the start of a lengthy trip, I may go almost all the way to my destination without the system ever properly calibrating. That said, when it does calibrate stop flashing blue/green, it does work perfectly. Is there an issue with my install? With my unit? With something else? Or is this normal, and I should ignore this process as the way system works?

asked by: Jeremy B

0

Expert Reply:

I reached out to Redarc and it sounds like you need an extra ground wire for your Redarc Tow-Pro Liberty Brake Controller # RED24FR. There is no Redarc wiring harness available for your vehicle, but if you look at one like the # RED49FR it has an additional ground wire. This is what allows the controller to retain power when the trailer is disconnected.

If you hard wired your brake controller using the Toyota provided pigtail you will need to splice an extra ground wire in with the Toyota Brown wire/Redarc white wire, and then simply attach it to a suitable ground point under the dash. This should prevent the reset of the Liberty every time you disconnect the trailer.

expert reply by: Robin H

0

Redarc RED49FR.
(click to enlarge)

Answer 1

In regards to the Redarc Tow-Pro Liberty Brake Controller part ##RED24FR, the unit should not be illuminated while driving without a trailer. If you press the button while a trailer is not attached you should see a breathing blue light and that…

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Answer 2

Hey Scott! Your 2026 Ford Ranger may or may not have a brake controller port/plug, even with the tow package. There will be four wires coming out of a large wire harness by the driver side firewall, left of the brake pedal, which can be wired to the…

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Answer 3

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 4

For your 2024 Nissan Frontier I recommend the Redarc Tow-Pro Liberty Brake Controller #RED24FR. I like the Liberty because it is simple, reliable, and looks great in any vehicle. The main unit installs behind the dash, so only the control knob will…

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Answer 5

Hi Richard! The best brake controllers on the market for your 2023 Ford Explorer XLT are going to be from Redarc. They're super easy to use and set up, and they are very reliable. They are the ones to get. Since you said you will be towing a…

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Answer 6

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 7

Hey Ken! The correct wiring harness depends on whether or not you have the brake controller port/plug. Some models did not include the plug so you will have to check your 2025 Ranger and see. There should be four wires coming out of a large wire…

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Answer 8

Factory brake controllers seem to unfortunately be very temperamental and usually quite a bit more expensive that an aftermarket brake controller so I have to recommend going with an aftermarket option. Luckily there is a brake controller port so…

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Answer 9

When it comes to installing The Redarc Tow-Pro Liberty #RED52VR if there is no trailer connected, the active calibration may occur as normal without any indication from the LED., provided your brake light trigger point is active when there is no…

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Answer 10

To set up a weight distribution system with your Jeep you will want to first disable the quadra lift system and setup the weight distribution system without it. To do this you will use the spare tire changing setting. To assist with changing a spare…

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Answer 11

Correct, the Redarc Tow-Pro Liberty Brake Controller #RED24FR will indeed still continue to calibrate without a trailer connected, but without the constant LED light. Per Redarc, if you just drive normally - even without a trailer connected - the…

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Troubleshooting Tow-Pro Liberty Recalibrating After Trailer Disconnect

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