How to Find Cold Side of Stop Light Switch for Brake Controller Installation

Question:

I have a 2019 jeep wrangler and I purchased a kit from you. I am having issuing finding the hot brake wire that is supposed to connect to the red wire on the brake controller . can you please assist ?

asked by: Philip

Expert Reply:

I can tell you exactly how to find the cold side of the stop light switch that will attach the red wire of your brake controller, though as of this writing (May 2019) we have not yet had a chance to wire a controller to a 2019 Jeep Wrangler.

What you need to to is locate the wires connected to to the brake switch at the top of your brake pedal. Then use Circuit Tester # PTW2979 and find the wire that is active only when you press on the brake pedal; that will be the wire you will splice into with Butt Connectors like # DW05745-5.

I have added a link to a help article on brake controller installation which I strongly recommend checking out as well.

expert reply by: Kyle S