Brake Fluid Level Sensor Check
WARNING: This page is about a different car, the 2018 Mitsubishi Mirage G4. However, it is still accessible from the selected car via links, so may be relevant.
The brake fluid level sensor is in good condition if there is no continuity when the float surface is above "MIN" and if there is continuity when the float surface is below "MIN".
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.