Prodigy Brake Controller 90885 Installation in 2012 Toyota Highlander with 4-Pole Wiring

Question:

Hi, I just put a hitch on my 2012 Highlander and bought a 4-way flat output connector from Curt to install for lights. Will be pulling a pop up camper 1,500-1800 lb dry weight. I was reading I would need electric brakes on a trailer over 1,000 lb. in New York State where I live. Can I use a 4 to 7 prong adapter to get the brakes to work or do I need to install a whole new system? Thanks.

asked by: Neil H

Expert Reply:

If your trailer has electric brakes that you must by law use where you will be traveling you will need to add a trailer brake controller to the Highlander and upgrade your wiring to the 7-way format which is most likely what is on the trailer.

You will need a controller such as the Prodigy P2 # 90885 - pretty much the gold standard for ease of use, reliability and value - and a 7-way wiring upgrade kit # ETBC7. You need only these two items. The wiring kit includes all parts needed to both install the brake controller and to add a 7-way connector to your existing 4-pole harness, which will still be used.

Please refer to the linked installation video showing a Highlander to see the whole process.

An adapter would allow the different connectors to mate but it would not allow the brake controller signal to reach the trailer.

expert reply by: Adam R