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How To Determine the Cold Side of the Stop Light Switch  


I want to know if you can be sure which one is the cold side, on a kia sorento 2012 v6 ex, i think is the yellow wire but. I just want to be sure, that i do no take the hot side. Thanks


Expert Reply:

When installing a brake controller, the only way to determine the cold side of the stop light switch on any vehicle, including your 2012 Kia Sorento, is to use a circuit tester such as the very handy Cordless Circuit Tester # PTW2979 and find the wire that only has voltage when you press the brake pedal. This is quite easy to do you will not have any issues whatsoever.

I have also added links to a couple help articles on brake controller installation I strongly recommend checking out.

expert reply by:
Kyle S

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