Monitor Strategy
MONITOR STRATEGY
| Related DTCs | P0420: Catalyst deterioration |
| Required Sensors/Components (Main) | TWC |
| Required Sensors/Components (Related) | HO2S, Intake Air Temperature (IAT) sensor, Mass Air Flow (MAF) meter, Crankshaft Position (CKP) sensor, Engine Coolant Temperature (ECT) sensor |
| Frequency of Operation | Once per driving cycle |
| Duration | 90 seconds (30 seconds x 3) |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |