Circuit/System Verification
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Vehicle in Service Mode, observe the scan tool Inspection/Maintenance System Status or Data indicators, and the I/M Test DTCs. All I/M System Status indicators should display YES, and no I/M Test DTCs should be present.