DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	HO2S current check	Poor connection Damaged or corroded terminals HO2S upstream (S1)
Enable Conditions	Exhaust gas temperature less than 800°C (1472°F). Target Lambda voltage between 0.95 - 1.05V Heating ratio greater than 20 % and less than 80 %.
Threshold Value	Sensor Current Change calculated form Sensor Output Voltage greater than 190 μA.
Diagnostic Time	Continuous.
Mil On Condition	2 driving cycles.

* S1: upstream oxygen sensor/S2: downstream oxygen sensor