Conditions for Setting the DTC
- Ignition ON.
- Engine Coolant Temperature is greater than 50.25 °C (122.5 °F).
- Vehicle speed is between 20 km/h (12.43 mph) and 150 km/h (93.21 mph).
- Catalyst temperature is greater than 306.975 °C (584.6 °F).
- Number of vali switching times from rich to lean is 3 or greater.