GM Service Manual Online
For 1990-2009 cars only

System

DTCs Required to Set System Status to YES

Catalyst

DTC P0421 or P0431

EVAP

DTC P0440

DTC P0442

DTC P0446

DTC P0455

DTC P0496

Oxygen Sensor

DTC P0133 or P0153

Oxygen Sensor Heater

DTC P0135, P0141, P0155, or P0161