Where to Find Stoplight Circuit for Installing Brake Controller in a 2015 Toyota Highlander

Question:

Installing Tekonsha Prodigy P2 on 2015 Toyota Highlander. Have done all according to the video except locating the wire that is the cold side of the stoplight switch. Where is the wire and what is the easiest way to hook to it?

asked by: Joe K

Expert Reply:

When we installed a brake controller in a 2014 Toyota Highlander very similar to your 2015 model we found that the color wire that carried the stoplight circuit needed was the larger green wire at a bundle of wires under the dash.

If you fast-forward to the 13:54 mark of the video I attached you can see it.

expert reply by: Jameson C