OBD-II Monitor Display On Scan Tool
WARNING: This page is about a different car, the 1997 Mercury Mountaineer. However, it is still accessible from the selected car via links, so may be relevant.
On-board system readiness function is available on New Generation Star (NGS) tester or generic scan tools. Readiness function indicates status of each OBD-II monitor. One Parameter Identification (PID) display on NGS tester, summarizers the status of all monitors.