GM Service Manual Online
For 1990-2009 cars only

System

DTCs Required to Set System Status to YES

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

DTC P0420

EVAP

DTC P0442

DTC P0446

DTC P0455

DTC P0496

Oxygen Sensor

DTC P0130

DTC P0131

DTC P0132

DTC P0133

DTC P0137, P0138, or P0140

DTC P167A

DTC P2096

DTC P2097

DTC P2195

DTC P2196

DTC P2231

DTC P2237

DTC P2243

DTC P2251

DTC P2270

DTC P2271

Oxygen Sensor Heater

DTC P0030, P0031, P0032, P0036, P0037, or P0038

DTC P0053

DTC P0135

DTC P0141