Installing Redarc Tow-Pro Elite On 2022 Toyota Highlander
Updated 12/15/2025 | Published 11/13/2024
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Question:
Hello, We are installing the Redarc Tow Pro Elite with EPDK-0001 in our 2022 Toyota Highlander. Our Highlander has the 4 pole flat connector and module from Toyota already installed. Should we connect the brake light signal wire from the Redarc Tow Pro Elite with EPDK-0001 to the brake signal wire red shown in this video at about 9 minutes in the video?: https://videos.etrailer.com/static/images/video/install-redarc-tow-pro-elite-trailer-brake-controller-2022-Toyota-Highlander-RED44FR_web.mp4 Just wanted to double check that the Toyota OEM 4 pole flat module system would be similar to the Curt 4 pole that was installed in the Highlander in this video at about 3:20 minutes in the video: Install-CURT-Custom-Fit-T-Connector-Vehicle-Wiring-Harness-4-Pole-Flat-2022-Toyota-Highlander-C56RV_web.mp4 Thanks Pete
asked by: Pete
Expert Reply:
Hi Pete; the # RED44FR installation video doesn't actually show the typical connection to the brake light trigger using the red wire since they ran extra wire and routed it to the back. You can follow the video or you can identify the cold side of the stop light switch to connect the red wire. We don't know what the wire color is so you will have to use a tester # PTW2993 and find the wire that only has 12V power when the brake pedal is pressed.
Your 4-way will function the same way as the Curt and is probably installed in a similar fashion but I don't have much information beyond that on the OEM wiring harness. Also, you cannot use the brake controller with just a 4-way. You will have to upgrade it to a 7-way using the # ETBC7 to use the brake controller and brakes on your trailer. The 7-way installation is covered in the same video where the Tow-Pro Elite was installed on the Highlander.
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Redarc Encapsulated Power Diode for Tow-Pro Brake Controllers
- Accessories and Parts
- Trailer Brake Controller
- Power Diode
- Redarc
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Robin H.
12/15/2025
Hey Pete, how did things go with wiring the Tow-Pro Elite in your Highlander? Were you able to locate the correct brake light signal using the tester? Your update could make it easier for others working on the same setup.