GM Service Manual Online
For 1990-2009 cars only

System

DTCs Required to Set System Status to YES

Catalyst

DTC P0420

EVAP

DTC P0441

DTC P043E

DTC P043F

DTC P0450

DTC P0452

DTC P0453

DTC P0455

DTC P0456

DTC P2401

DTC P2402

DTC P2419

DTC P2420

Oxygen Sensor

DTC P0031

DTC P0032

DTC P0037

DTC P0038

DTC P0130

DTC P0133

DTC P0134

DTC P2195

DTC P2196