WARNING: This page is about a different car, the 2004 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the following items for the details of each step.
Fig 1: Checking Engine & Emission Control System (1 of 2)
Courtesy of SUZUKI OF AMERICA CORP.
Fig 2: Checking Engine & Emission Control System (2 of 2)