2022 Toyota Highlander Wiring for a 7-Way Blade Connector
Question:
I have just purchased a 2022 Toyota highlander that has a flat 4 pin trailer attachment. I also just purchased a travel trailer with the round 7 pin attachment. Do I have to rewire the Toyota or is there another solution? Also, I was going to use the curt echo Bluetooth brake controller. I went to pick up trailer with Silverado with the 7 pin and the controller would not fit. Tech also said trailer would not plug into that. He said they were different shapes, but I read in one of these comments that all of the 7 pin are the same. Any thoughts?
asked by: Sharon W
Expert Reply:
I would be happy to help you set up your 2022 Toyota Highlander to haul your new travel trailer. The wiring harness you currently have controls your trailer's lighting functions only. You do not need to rewire your Toyota you just need another harness. The second harness you will need is the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your vehicle with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it. You will then connect the blue wire to the blue wire on the brake controller, connect the black wire to the positive post on the vehicle's battery, the white wire to ground, and the yellow wire to vehicle's reverse circuit if applicable. This will provide you with the ability to control your trailer's brakes and also provide you with a 12v power wire for you trailer's accessory lights.
There are two different types of 7-way connectors. 7-way blade is the most common but there is also a 7-way round. I have attached a diagram to show the differences in the two. It sounds like your trailer has a 7-way round so you will need an adapter for it to work with your Toyota Highlander and Curt Echo Brake Controller item # C51180. I recommend the Pollak Trailer Connector Adapter - 7-Blade Plug to 7-Pole Round Pin item # PK12728. This will allow you to connect your trailer's 7-way round to your Echo, and Toyota's 7-way blade.
If you want to have your trailer rewired so you do not have to worry about using an adapter I recommend the Trailer Wiring Junction Box - 7 Terminals item # 3375601100 and the Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long item # H20046 you were looking at. These two parts will allow you to rewire your new travel trailer with a standard 7-way blade trailer connector. The durable polypropylene box creates a fast, easy way to connect the wires from the trailer connector to the wiring for a 7-way connector.
(click to enlarge)
Products Referenced in This Question
Trailer Wiring Junction Box - 7 Terminals - Polypropylene
- Accessories and Parts
- Trailer Wiring
- Junction Box
- Buyers Products
more information >
Curt Echo Wireless Brake Controller - 7-Way Plug Mount w/ Bluetooth App - 1 to 2 Axle - Proportional
- Trailer Brake Controller
- Proportional Controller
- Hidden
- Up to 2 Axles
- Smartphone Display
- CURT
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Pollak Trailer Connector Adapter - 7-Blade Plug to 7-Pole Round Pin - Die-Cast Zinc
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 7 Round - Blade
- Plug and Lead
- 7 Round - Round
- Pollak
more information >
Product Page this Question was Asked From
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Brake Controller
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Trailer Hitch
- Shop: 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Set up: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2022 Toyota Highlander
- Video: Review of Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - TK57VR
- Video: Install: 7-Way RV Upgrade Kit for Trailer Brake Controller Installation on a 2023 Toyota Highlander
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Video: Setting up the Universal Installation Kit for Trailer Brake Controller on a 2019 Toyota Highlander
- Shop: Curt Echo In-Line Bluetooth Brake Controller w/ OneControl App - 1 to 4 Axles - Proportional
- Video: Install: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2023 Toyota Highlander
- Shop: Towing Mirrors
- Shop: T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Q&A: Brake Controller and 7-Way Trailer Connector Installation for 2021 Toyota Highlander
- Shop: Suspension Enhancement
- Article: Trailer Wiring Diagrams
- Video: Installation: T-One Vehicle Wiring Harness for Factory Tow Package on a 2021 Toyota Highlander
- Search Results: etbc7l
- Video: An In-Depth Look at the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: Does Curt Echo In Line Brake Controller Fit 2023 Toyota Highlander
- Q&A: Can a 4-Pole Trailer Connector Be Used to Activate Trailer Brakes
- Q&A: Recommended Locking Hitch Pin for 2017 Ford F-350
- Search Results: 23518
- Search Results: c56217
- Search Results: vehicle suspension
on Trailer Wiring
