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


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

Question type: Maintenance & Repair

3 Answers


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.


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


Use a test meter.

Your Answer:


Looking for a Used CTS in your area?

CarGurus has 279 nationwide CTS listings starting at $4,995.

Postal Code:

Cadillac CTS Experts

  • #1
    Brandon Foster
  • #2
  • #3
    Gaetano Viesti
View All

Find great deals from top-rated dealersTM


Related Models For Sale

Used Cadillac CTS-V
17 listings starting at $29,800
Used Cadillac SRX
13 Great Deals out of 361 listings starting at $4,490
Used Chrysler 300
45 Great Deals out of 935 listings starting at $3,995
Used Cadillac STS
14 listings starting at $4,999
Used Cadillac Escalade
11 Great Deals out of 730 listings starting at $5,750
Used Mercedes-Benz C-Class
74 Great Deals out of 1,625 listings starting at $3,988
Used Ford Mustang
59 Great Deals out of 1,884 listings starting at $3,900

Used Cars for Sale

2019 Cadillac CTS For Sale
78 listings starting at $47,194
2018 Cadillac CTS For Sale
33 listings starting at $34,688
2017 Cadillac CTS For Sale
11 listings starting at $23,488
2016 Cadillac CTS For Sale
11 listings starting at $24,995
2015 Cadillac CTS For Sale
20 listings starting at $20,888

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.