Diagnose Car Brake Failure

My car’s braking system has started acting up and I need a clear, professional diagnosis followed by practical repair guidance. The issue is isolated to the brakes—engine and transmission are working fine—so I want someone who can focus squarely on brake hydraulics, pads, rotors, and any related electronics such as ABS.

Here’s what I’m after:
• A step-by-step diagnostic plan I can follow with basic garage tools.
• A detailed report pin-pointing the root cause once the checks are complete.
• Parts list and repair procedure, including torque specs and safety precautions.

If you have hands-on experience with modern car braking systems and can explain things in clear, mechanic-level language, let’s get this sorted.