Inspection/Maintenance System DTCS: Description
The following DTCs are required to set system status to YES:
Catalyst System
- P0420 - TWC System - Low Efficiency
EGR System
- DTC P0401 - EGR Flow Error
- DTC P0404 - EGR Position Sensor Performance
- DTC P0405 - EGR Sensor Circuit - Low Voltage
- DTC P1404 - EGR System
EVAP System
- P0440 - EVAP Emission System
- P0442 - EVAP System Emission Control System - Small Leak Detected
- P0446 - EVAP Vent System Performance
- P1441 - Evaporative Emission System Flow During Non-Purge
Oxygen Sensor
- P0133 - HO2S 1 Slow Response
- P0140 - HO2S 2 Circuit - Insufficient Activity
- P1133 - HO2S Insufficient Switching - Sensor 1
Oxygen Sensor Heater
- P0135 - HO2S 1 Heater Circuit
- P0141 - HO2S 2 Heater Circuit
Diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .