Inspection/Maintenance System DTCS: Description
WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The following DTCs are required to set system status to YES:
Catalyst System
- P0420 - TWC System - Low Efficiency (Bank 1)
EVAP System
- P0440 - EVAP System
- P0442 - EVAP Control System - Small Leak Detected
- P0446 - EVAP Vent System Performance
- P1441 - EVAP System Flow During Non-Purge
Oxygen Sensor
- P0133 - HO2S Slow Response (Bank 1; Sensor 1)
- P0140 - HO2S 2 Circuit - Insufficient Activity
- P1133 - HO2S Insufficient Switching (Bank 1; Sensor 1)
Oxygen Sensor Heater
- P0135 - HO2S Heater Circuit (Bank 1; Sensor 1)
- P0141 - HO2S 2 Heater Circuit
Diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .