Door Switch 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.
Door switch specifications
OFF position (Door closed): No continuity
ON position (Door open): Continuity
Courtesy of SUZUKI OF AMERICA CORP.