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Fluid Level Sensor Inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the sensor connector.
  2. Connect an ohmmeter to the connector.
    Fig 1: Connecting Ohmmeter To Connector
    G03638243Courtesy of MAZDA MOTORS CORP.
  3. Starting with the fluid level above MIN, verify that there is no continuity.
  4. Remove the brake fluid and verify that there is continuity when the level is below MIN.
    • If not as specified, replace the sensor.