2019 Toyota Highlander Wiring Parts Needed to Use with Autowbrake Brake Controller
Updated 08/28/2025 | Published 08/21/2025
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Question:
I have a 2019 Toyota Highlander Hybrid LTD AWD with factory 4 pin wiring. I’d like to get the Autowbrake to connect to a trailer and handle its brakes. Do I also need to convert to a 7 pin wire? Which product would I need for this if so? What will installation consist of?
asked by: Jermaine
Expert Reply:
Hey Jermaine, thanks for reaching out!
I see that you've picked up the 7-Way RV Upgrade Kit # ETBC7L to activate the Autowbrake Electric Brake Controller # 3430001, which is exactly what you need to accomplish this!
The installation is fairly simple as you'll plug it into your existing 4-Way and then run the black power cord up to the battery on your Highlander (and through the circuit breaker). We've done this installation on a 2023 Highlander, so I've linked that video to this page for your reference.
What drew you to this brake controller?
Product Page this Question was Asked From
7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
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Jermaine
8/28/2025
During my research I found some people were having issues with the direct brake controller install and the Hybrid battery setup on the Highlander. Dealerships and other installers recommended a remote brake controller as well. Between the Curt Echo and Autowbrake, it seemed unanimous the latter was the more reliable choice based on anecdotal evidence across various sites and forums.