Inspection/Maintenance System Check: Description
WARNING: This page is about a different car, the 2002 Cadillac Seville, 2002 Cadillac Eldorado, and 2002 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
Several states require that a vehicle pass On-Board Diagnostic (OBD) system tests and the I/M emission inspection in order to renew license plates. This is accomplished by viewing the I/M System Status display on a scan tool. Using a scan tool, the technician can observe the I/M System Status in order to verify that the vehicle meets the criteria that complies with the local area requirements.