Conditions for Setting the DTC
- HO2S1 voltage is greater than 0.55 V in Decel Fuel Cutoff (DFCO) mode.
- System voltage is greater than 10 V.
- Engine running time is greater than 10 seconds.
- Engine Coolant Temperature (ECT) is greater than 60 °C (140 °F).
- No relevant DTCs are set.
- 2 second delay after in DFCO mode.