Hydraulic pressure inspection
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
- Start the engine. Depress the brake pedal when the vacuum reaches 66.7 kPa {500 mmHg, 19.7 inHg}.
- At this time, apply the indicated brake pedal force and if the fluid pressure is within the specification, the unit is normal.