GM Service Manual Online
For 1990-2009 cars only

System

DTCs Required to Set System Status to YES

AIR

DTC P0410

DTC P1415 or P1416

Catalyst

DTC P0420 or P0430

EGR

DTC P0401

DTC P0404

DTC P0405

DTC P1404

EVAP

DTC P0440

DTC P0442

DTC P0446

DTC P1441

Oxygen Sensor

DTC P0133 or P0153

DTC P0140 or P0160

DTC P1133 or P1153

DTC P1134 or P1154

Oxygen Sensor Heater

DTC P0135, P0141, P0155, or P0161