Locating The brake Switch Wire To Install A Brake Controller On 2009 Nissan Murano

Question:

Watch your etrailer video on 2009 murano brake controller install. Problem is you say there is a yellow wire to splice into on the brake switch. There is no yellow wire on mine, there are two switches both with a green and a red wire with grey rings. Which wire do i splice into?

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Expert Reply:

When trying to locate the correct wire on the brake switch, you will need a circuit tester like part # 40376. You will need to find the wire that shows power only when the brake pedal is depressed. The colors of the wires may vary which is why we always recommend using a circuit tester to find the right wire. It sounds like the manufacturer may have used the same color wire for multiple locations.

I have attached a photo of the switch located under the dash at the top of the brake pedal with an arrow pointing to the wiring location.

Click to Enlarge
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Jeffrey L

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