2025 Toyota Sienna Wiring Needed for the Tekonsha Prodigy RF Brake Controller

Updated 12/30/2024 | Published 12/24/2024

Products Featured in This Question

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3442)

$120.68

Question:

Tekonsha Prodigy RF Wireless Brake Controller. I understand converter needed for 2025 sienna, what wire do i connect to vehicle 7 pin round BRAKE wire

asked by: Mike P

Expert Reply:

Hey Mike, thanks for reaching out!

It sounds like your 2025 Toyota Sienna doesn't have any wiring at the back so you'll need to install the T-One Wiring Harness # TK69FR along with the Universal Wiring Kit # ETBC7. This will give you all of the wiring and connections you need to operate the Tekonsha Prodigy RF Wireless Brake Controller # TK94FR.

I also recommend picking up the No-Drill Wiring Mount # 18136 to secure the wiring at the back of your van.

expert reply by: Jon G

Mike P.

12/27/2024

Jon, since the Tekonsha Prodigy RF Wireless Brake Controller is mounted to the trailer, and the Sienna has all the kits you recomended, i dont see a wire going to the 7 pin connector brake controller pin on the Sienna side. (since the controller is on the trailer} Is there a wire going the the brake pin Sienna side? Other question I want the backup lights to work on the trailer. do the mentioned above kits connect the backup lights? Thanks

Jon G.

12/30/2024

@MikeP The # ETBC7 kit comes with all of the wiring needed to install a standard brake controller, but the RF actually just needs the left and right stop/turn signals and 12V power in order to work. The ETBC7 also comes with a place to connect a reverse light function. You'll likely need to tap into the reverse light circuit by splicing into one of your brake lights.