Typical Enabling Conditions
TYPICAL ENABLING CONDITIONS (DTC P0420)
| Monitor runs whenever following DTCs not present | See LIST OF DISABLE A MONITOR |
| Battery voltage | 11V or more |
| Engine coolant temperature sensor | 75°C (167°F) or more |
| Idling | OFF |
| Engine RPM | Less than 4,000 RPM |
| A/F sensor status | Activated |
| Sub feedback control | Executed |
| Fuel cut | OFF (for 5 seconds or more) |
| Engine load | 10 to 80% |
| Mass air flow rate | 2.5 to 33 g/second |
| Estimated catalyst temperature | Front catalyst: 620° to 830°C (1,148° to 1,526°F) (M/T) 620° to 840°C (1,148° to 1,544°F) (A/T) Rear catalyst: 400° to 760°C (752° to 1,400°F) |
| Fuel trim deviation | Within +/-5% |
| Shift position | D (A/T), or 4th or 5th gear (M/T) |