Brake Fluid Level Switch On-Vehicle Inspection
WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
Use an ohmmeter to check switch for continuity.
If found defective, replace switch (reservoir).
Brake fluid level switch specifications
OFF position (float up): No continuity
ON position (float down): Continuity