Conditions for Setting the DTC
- No oxygen sensor fault exists.
- Exhaust gas temperature is greater than 349.975 °C (662 °F).
- Calculated catalyst temperature is over 600 °C (1,112 °F).
- The vehicle is in Closed Loop condition.
- No relevant DTCs are set.
- Difference between maximum and minimum HO2S voltage is less than 0.25 V.