For 1990-2009 cars

System | DTCs Required to Set System Status to YES
--- | ---
Catalyst Monitor If an I/M System Status indicator did NOT update to YES during the Inspection/Maintenance (I/M) System Check , review each indicator and reference this table to determine each DTC associated with the I/M System Status Indicator. Each DTC listed below has specific conditions that must be met for the diagnostic to run. Included in these conditions are additional DTCs which, if set, will inhibit these DTCs from running. Reviewing and operating the vehicle within the Conditions for Running for each DTC listed below will allow the I/M System Status Indicators to transition to YES.
Catalyst | DTC P0420
EVAP | DTC P0442 DTC P0443 or P0449 DTC P0446 DTC P0451, P0452, P0453, or P0454 DTC P0455

DTC P0496

Oxygen Sensor | DTC P0131, P0132, P0137, or P0138 DTC P0133, P0134, P0140, P1133, P2A00, or P2A01
Oxygen Sensor Heater | DTC P0030, P0036, P0053, P0054, P0135, or P0141