Brake Fluid Level Sensor Inspection

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the brake fluid level sensor connector. (See MASTER CYLINDER REMOVAL/INSTALLATION .)
Verify that the continuity is as indicated in the table.

Fig 1: Locating Brake Fluid Level Sensor Connector
Courtesy of MAZDA MOTORS CORP.
- If not as indicated in the table, replace the master cylinder component. (See MASTER CYLINDER REMOVAL/INSTALLATION .)
Fig 2: Brake Fluid Level Sensor Terminal Continuity Chart
Courtesy of MAZDA MOTORS CORP.