For 1990-2009 cars

System | DTCs Required to Set System Status to YES
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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 within the conditions are additional DTCs, which if set, may inhibit the DTCs listed below 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 Monitor | DTC P0420 --Refer to DTC P0420 .
Evaporative Emission (EVAP) |

• | DTC P0442 or P0456--Refer to DTC P0442 or P0456 .

• | DTC P0446--Refer to DTC P0446 .

• | DTC P0455--Refer to DTC P0455 .

• | DTC P0496--Refer to DTC P0496 .

Oxygen Sensor |

• | DTC P0131, P0132, P0134, P0137, P0138, or P0140--Refer to DTC P0131, P0132, P0134, P0137, P0138, or P0140 .

• | DTC P0133 or P0139--Refer to DTC P0133 or P0139 .

• | DTC P1137 or P1166--Refer to DTC P1137 or P1166 .

• | DTC P1138 or P2297--Refer to DTC P1138 or P2297 .

Oxygen Sensor Heater |

• | DTC P0031, P0032, P0037, or P0038--Refer to DTC P0031, P0032, P0037, or P0038 .

• | DTC P0135 or P0141--Refer to DTC P0135 or P0141 .

EGR |

• | DTC P0400, P0401, P0402, or P1402--Refer to DTC P0400, P0401, P0402, or P1402 .

• | DTC P0403, P0404, P0405, P0406, or P042E--Refer to DTC P0403, P0404, P0405, P0406, or P042E .