How To Convert the 4-Way On a 2004 Toyota Sequoia To a 7-Way
Updated 07/14/2020 | Published 07/10/2020 >
Products Featured in This Question
Question:
I have a 2004 Sequoia with factory 4 pin and I believe the clip for a brake controller on the harness at the kick panel beside the e-brake. I bought an adapter for 4pin to 4pin and 7blade, but I don’t know where to run the purple, black, and blue wires. I have a camper that has electric brakes, so I need the 7blade to fully function. Can you help explain how to finish the install?
asked by: Eric W
Expert Reply:
In order to convert the 4-way on a 2004 Toyota Sequoia to a 7-way you'd need to use something like the Universal Installation Kit for Trailer Brake Controller part # ETBC7. The additional wires for this adapter will need to be run to the battery (black), brake controller (blue), and ground (white) using the included circuits breakers and wires etc.. This would then allow you to add a brake controller like the Tekonsha Primus IQ Trailer Brake Controller part # TK90160.
That said, I would need to know the exact adapter you have in order to be able to offer installation advice.
Product Page this Question was Asked From
Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Flat Connectors
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Factory Tow Package
- 4 Flat
- 7 Blade
- Plug and Lead
- Plug-In
- Visible
- Hopkins
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Rear View Safety Switcher Box RVS-501N-3 Wont Trigger
- Q&A: Upgrading Trailer Wiring on a 2002 Toyota Sequoia from a Factory 4 Wire to a 7 Wire RV Plug
- Q&A: How to Charge a Battery on an Enclosed Trailer
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: Trailer Wiring Harness on a 2012 Toyota Tacoma
- Q&A: Replacing 6-Way on Trailer With 7-Way Connector
- Q&A: Location of the Electric Brake Control Harness on a 2012 Toyota Tacoma
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: Trailer Wiring Diagrams

