Inspection/Maintenance (I/M) System DTC Table
IMPORTANT:
Not all vehicles will have every diagnostic trouble code (DTC) listed in each section. For example, a vehicle may have only 2 oxygen sensors or 1 catalyst. Only those DTCs applicable to the vehicle are required to update each System Status to YES. Refer to the appropriate service manual to determine which DTCs are supported for each vehicle.
Inspection/Maintenance (I/M) System DTC Table
| System | DTCs Required to Set System Status to YES |
|---|---|
| Catalyst | DTC P0420 Catalyst System Low Efficiency |
| EGR | DTC P0401
Exhaust Gas Recirculation (EGR) Flow Insufficient DTC P0404 Exhaust Gas Recirculation (EGR) Open Position Performance DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance |
| EVAP | DTC P0442
Evaporative Emission (EVAP) System Small Leak Detected DTC P0446 Evaporative Emission (EVAP) Vent System Performance DTC P0455 Evaporative Emission (EVAP) System Large Leak Detected DTC P0496 Evaporative Emission (EVAP) System Flow During Non-Purge |
| Oxygen Sensor | DTC P0133
HO2S Slow Response Bank 1 Sensor 1 DTC P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2 DTC P1133 HO2S Insufficient Switching Bank 1 Sensor 1 DTC P1134 HO2S Transition Time Ratio Bank 1 Sensor 1 DTC P2A01 HO2S Circuit Closed Loop (CL) Performance Bank 1 Sensor 2 |
| Oxygen Sensor Heater | DTC P0135
HO2S Heater Performance Bank 1 Sensor 1 DTC P0141 HO2S Circuit Low Voltage Bank 1 Sensor 2 |