Troubleshooting Fault Codes in a Redarc Tow Pro Liberty Installed in a 2022 Toyota 4Runner

Question

Question:

I just installed a tow pro liberty on my 2022 4runner by using the tph-021 harness. I am getting fault codes on the knob but all wiring connections are fine. The fault codes come on intermittently. Do I need to add this product? The REDARC website states that a diode is already in the stock tow package. Seems a bit confusing as I also read on REDARCS website that they recommend using their universal harness by splicing in into jumper harness that came with the vehicle. What exactly do I need to do to have the unit installed properly with no faults?

asked by: Vinny V

0

Expert Reply:

The easiest way to determine what could be causing the issue with your Redarc Tow-Pro Liberty Brake Controller # RED24FR, installed in your 2022 Toyota 4Runner using the Plug-and-Play Wiring Harness # RED49FR is to check the fault code chart in the installation instructions.

There are a number of different fault codes that indicate the problem and solution. I have included pictures of the fault code chart here for quick reference. If you you need further help with this, please let me know what fault code(s) you are getting.

expert reply by: Scott S

0

Redarc Tow Pro Liberty Fault Code Chart
(click to enlarge)

Answer 1

According to the troubleshooting section of the instructions the controller is telling you that the black power wire is not getting the 12 volts of power from the vehicle. This happens if the in line fuse or circuit breaker goes bad. Double check…

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Answer 2

Aftermarket brake controllers send a small amount of voltage along the brake output wire, if a trailer is connected, the magnets in the brake assemblies will create a power draw. This power draw tells the controller that a trailer is connected. The…

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Answer 3

This is a common problem that I have seen when using the factory connector on your 2019 Toyota 4Runner. The ground wire for the brake controller is not capable of supporting the negative power from the Redarc Tow-Pro Elite #RED44FR. Redarc has their…

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Answer 4

The Redarc Encapsulated Power Diode #RED34FR shouldn't be needed for installing the Redarc Tow-Pro Liberty #RED24FR and Pigtail #RED69FR on your 2020 Subaru Forester. The answer page you're referring to didn't have us telling someone to…

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Answer 5

The Redarc Encapsulated Power Diode #RED34FR is only needed on vehicles with certain advanced safety systems like the Adaptive Cruise Control, Assisted Emergency Braking and Autonomous Emergency Braking. If your 2016 Toyota Highlander has these…

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Answer 6

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 7

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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Answer 8

Like most other brake controllers do, the Draw-Tite Activator IV, part #5504 sends a small test pulse of voltage through the brake output circuit to confirm that the trailer is plugged in and that the brake magnets are receiving the signal. This…

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Answer 9

The flicker you are seeing on the brake output circuit of your vehicle is normal. Brake controllers will lightly pulse their output circuit to check to see if a trailer is connected due to the amperage draw of the brake magnets. So what this all…

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Answer 10

Your 2017 Lance 1475 has the Dexter #10 torsion axle. The lift kit for that axle is #K71-707-01. This will lift your trailer frame by 2-5/8 inches you requested.

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Answer 11

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 12

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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Troubleshooting Fault Codes in a Redarc Tow Pro Liberty Installed in a 2022 Toyota 4Runner

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