Brake light wiring

2004 HYUNDAI SONATA

150,000 MILES • 4 CYL • 2WD • AUTOMATIC

MCWOODY619

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I noticed my brake lights were staying on all the time. Did some research and replaced the brake light switch. The switch only seems to work when the car is not started, so I replaced the plug and the lights still only work when the car is not running.

Oct 23, 2018 at 1:05 PM

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Can you see if you have power to fuse #9 - 15 amp in the inside fuse panel. Here is a guide to help and the brake light wiring diagrams so you can see how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken

Images (Click to enlarge)

Mar 22, 2021 at 10:58 AM