DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Open in circuit	Poor connection Open in HO2S (S1) control circuit Faulty HO2S (S1)
Enable Conditions	Upstream O2 sensor operative readiness detected O2 sensor forced stimulation active P0420 (catalyst diagnosis) monitoring active P0133 diagnosis is synchronized with P0420 monitor Battery voltage is higher than 11Vand lower than 16V
Threshold Value	Nernst voltage higher than 4.4V Difference between pumping current and virtual ground higher than 2.35V Difference between pumping current and virtual ground lower than -2.35V Difference between nernst voltage and virtual ground higher than 1.6V Difference between nernst voltage and virtual ground lower than -0.1V Pumping current higher than 11.5mA Difference between pumping current and virtual ground lower than 1.2V, and difference between nernst voltage and virtual ground lower than 1.2V
Diagnostic Time	Immediately
MIL ON Condition	2 driving cycles