Which one of the wires on the brake switch is power and negative

5

Asked by May 13, 2019 at 07:38 PM about the 2004 Cadillac CTS

Question type: Maintenance & Repair

3 Answers

20,730

You can determine that polarity with a voltage test meter. Or the negative is usually black and positive is usually red but it could be another color.

114,315

They're usually both negative. When you press the brake pedal and activate the switch it completes the circuit to ground. Hope that helps! Jim

227,175

Use a test meter.

Your Answer:

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