Fuel System Status
WARNING: This page is about a different car, the 2006 Suzuki Reno and 2006 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.
The Closed Loop is displayed indicating that the ECM is controlling the fuel delivery according to the Front Heated Oxygen Sensor (HO2S) voltage as close to an air/fuel ratio of 14.7:1 as possible.