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, P2270, P2271, or P2A00

Oxygen Sensor Heater

DTC P0030, P0036, P0053, P0054, P0135, or P0141