Question:
I have a 2008 Toyota Hylander Sport. I am planning on installing a hitch, wiring, and electric brake to pull a 3,000 pound pop-up camper or a 2,000 pound jet ski trailer. The pop-up camper has electric brakes. The wiring harness that is recommended for the Toyotal Highlander 118449is a 4 pole flat connection. It is my understanding that the electric brake requires the 6 or 7 pole round connection I believe that this is the type of connector that is on the trailer. Should I use a different wiring harness than the recommended one? Will the brakes work with an adapter? What do you recommend? I am going to purchase all of the parts through etrailer.com, due primarily to your excellent how-to videos on Youtube and your ion. I appreciate both! Thanks, Mike
asked by: Mike
Expert Reply:
You will actually need the T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, item # 118449, for your vehicle and the, item # ETBC7, Brake Controller Installation Kit, along with the brake controller of your choice. I recommend going with a proportional controller, like Tekonhsa Prodigy part # 90185. The following link below will take you to the recommended brake controllers for your Highlander.
You will need to hard wire the additional brake, power and auxiliary functions that your trailers need with the supplied wiring and hardware in the ETBC7 Kit. If your trailers have different connectors you can get an adapter for the different connector or you can rewire the trailer wiring harness to the 7-Way connector. see links
expert reply by: Amanda

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Products Referenced in This Question
Adapter 7 Pole to 6 Pole - Universal
Product Summary:
Wiring Adapters
Single Function Adapter
Product Specs:
Plug Only
7 Blade
6 Round
Adapter 7 Pole to 6 Pole and 4 Pole with Cover - Universal
Product Summary:
Wiring Adapters
Single Function Adapter
Product Specs:
Plug Only
7 Blade
6 Round
4 Flat
Tekonsha Prodigy Trailer Brake Controller - 1 to 4 Axles - Proportional
Product Summary:
Proportional Controller
Electric
Digital Display
Vehicle Mount
Product Specs:
Automatic Leveling
2 - 8 Brakes
70 Degrees
Universal Installation Kit forTrailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
Product Summary:
Brake Controller
Accessories
2 - 8 Brakes
10 Gauge Wire
Product Specs:
Connector
Brake Controller Wiring
Wired to Brake Controller
Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End
Product Summary:
Trailer Connectors
Trailer End Connector
Product Specs:
Plug Only
7 Blade
Product Page this Question was Asked From
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Function of Under Dash Converter in Trailer Wiring Hanress # 118449 for a 2008 Toyota Highlander
Brake Controller Install on 2010 Toyota Highlander