Vacuum Loss Function Inspection
WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Start the engine.
- Depress the brake pedal with normal force.
- With the brake pedal is depressed, stop the engine.
- Hold the brake pedal depressed for approx. 30 s.
- If the brake pedal height does not change during this time, the unit is normal.