Inspection/Maintenance System DTCS: Description
WARNING: This page is about a different car, the 2003 Saturn Ion 3, 2003 Saturn Ion 2, and 2003 Saturn Ion 1. 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
- P0442 - EVAP Control System - Small Leak Detected
- P0446 - EVAP Vent System Performance
- P0455 - EVAP System Leak
- P0496 - EVAP System Flow During Non-Purge
Oxygen Sensor
- P0133 - HO2S Slow Response - Sensor 1
- P0140 - HO2S 2 Circuit - Insufficient Activity
- P1133 - HO2S Insufficient Switching - Sensor 1
- P1134 - HO2S Transition Time Ratio - Sensor 1
Oxygen Sensor Heater
- P0135 - HO2S Heater Circuit - Sensor 1
- P0141 - HO2S Heater Circuit - Sensor 2
Diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .