Brake Fluid Level Switch On-Vehicle Inspection
WARNING: This page is about a different car, the 2004 Suzuki XL-7 and 2004 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
Use and 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
Courtesy of SUZUKI OF AMERICA CORP.