Redarc Brake Controller & Sway Control

Hi all.

Does the Redarc brake controller allow the Tacoma ‘Trailer Sway Control’ to control the trailer brakes also?

Equipment used:

2020 Tacoma OR
Redarc Tow Pro Liberty

I’ve looked through literature on Toyota & Redarc websites with no solid answer.

Toyota says ‘TSC’ controls vehicle brakes and engine braking.
Redarc says if you feel sway press the button to manually engage trailer brakes…

Edit: Redarc says the Liberty is compatible with Dexter & Tuson Sway Control Systems. Presumably you would use one of those if your vehicle does not have sway control built in.

 

@caribe makaira you’re an electrical master, what are your thoughts?

Does the Redarc pick up the signal that the vehicle brakes are being applied by the TSC and apply it to the trailer brakes? If so would it apply the trailer brakes left and right individually or just both at the same time?

Mahalo’s

 

It wouldn't. The redarc controller is activated by either the button or brake pedal switch + deceleration. Toyota TSC operates in the ABS valve body and doesn't activate the brake switch but just provides brake pressure to individual wheels to stop the vehicle from rotating. I'm not sure how bad it has to get for that to activate but the idea is that you should already on the brakes at that point. There are some modules you can install in your trailer to add the same kind of functionality as TSC to the trailer itself though.

 

Thanks, that makes a lot of sense!

 

Prior comment not withstanding, anytime the TSS activates the stop switch is bypassed. The stop signal to the towing trailer comes from the brake circuit. TSS doesn't have a separate circuit to the towing trailer connector and...I have no clue what Redarc has as a cpu and onboard sensors and its behavior.

 

Check this out:

https://youtu.be/cVlXlbU38zA

 

In theory it looks to be great in a perfect application.

Here’s an example of when it’s not a perfect application… https://www.jaycoowners.com/forums/f39/sway-command-recall-38570.html

 

Lol as usual I am confused

But does it send a signal to the loom where the redarc plugs in?

Edit: I’m guessing vehicle sway control is not sent to the trailer and that is what the manual override is for on the redarc dial.

 

Yes, stop signal.

 

So please correct me if I’m wrong. The redarc operates by acknowledging the stop signal and then adjusts how much braking effort the trailer produces according to the inertia sensors and not how much the brake pedal is pressed?

So with TSC, redarc will see the stop signal and deploy both sides of the trailer brakes depending on how much the vehicle slows?

TIA

 

Yes.
No clue how Redarc operates.
You should read the install manual for the version chosen.

 

Response from Redarc…

• Question: I have a 2020 Toyota Tacoma 3.5v6 and the Liberty brake controller, my vehicle has Trailer Sway Control built in which controls the vehicles brakes in event of sway does the brake controller see this signal and does the REDARC then control the trailer brakes in relation to the TSC, either the left or right or anything at all? Or does the inertia sensor pick up the deceleration?

Answer: The Tacoma brake lights are applied during all braking events i.e. whether manually by the operator or automated during AEB Automated Electronic Braking events. The TowPro is triggered on brake light activation and from there the TowPro, inbuilt 3Axis Accelerometer, measures the amount of braking force being applied by the vehicle and then transmits a light proportional amount of this power through to the trailer brakes for a smooth braking experience.