About Brake Light
The brake light bulbs are situated at the back of the car, housed inside a protective covering (lens). The brake light would turn on when you would push the brake pedal, which would let the drivers know that you are slowing down. There is a red light attached to the rear of a motor vehicle which would light up when the brakes would be applied, serving as a warning to following drivers.
What is the purpose?
It is going to tell you when to lock your parking brake. And the contacts might just hang on to your parking brake switch and let the light on. You're in no immediate danger if that's the case, and it's a quick fix. Brake light also comes on to warn you that your brake fluid is weak.
How It Works?
See how the brake light actually works? All you need to do then is look below and then you can grasp it all. Brake lights serve a simple but important purpose-when you drive slowly, drivers behind you will be notified. Have you ever stood behind a faulty Brake Lights car? If the brake lights were not working properly, then there would certainly be a much higher rate of crashes at the rear end. In many cars the Brake Light cabling system isn't very difficult. At one end is light itself: lights in sockets connected to a wiring harness. At the other end, though, there is a brake switch, where the button presses down and then produces a contact that completes the circuit.