Giving your own brakes the once-over may seem daunting, but if you have eyes, hands and feet, you already possess the tools you need to catch some major problems before they spin out of control. In this article, I’ll show you how to use your body’s onboard equipment to inspect your fluid, pads and indicators, and take you on a quick tour of other tools you’ll need to check your fluid, bleed your brakes and test your proportioning valves.