2003 Nissan Sentra Brake lights stay on
When you depress the brake pedal, the brake pedal will move away from the brake light switch and cause a close circuit and the brake lamps light up. There is a rubber bunk on the pedal which pushes against the brake light switch to shut it off when you release the brake pedal. Most likely this rubber bunk has either fallen off or disintegrated leaving a hole in the brake pedal so there is nothing to push against the switch to shut it off. Look up the brake pedal until you see the brake light switch, then depress the brake pedal to see if the rubber bunk is still there. It is easy to replace. Or you can use some double sided adhesive tape and a coin and stick the coin over the hole in the brake pedal.
What exactly is your problem? Brake lights not working. Are you trying to replace the switch?
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