General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item		Detecting Condition	Possible Cause
DTC Strategy		Signal check, wiring interruption	Poor connection Open or short in signal circuit B1S2 ECM
General Enable Conditions		After enough heated Battery voltage > 10.7 V Catalyst temperature (model) < 800 °C
Case 1	Threshold Value	Sensor voltage : 0.4 ~ 0.52 V
Case 1	Diagnostic Time	sec
Case 2	Enable Conditions	Catalyst temperature (model) > 600 °C
Case 2	Threshold Value	Internal resistance > 40 kΩ
MIL ON Condition		2 driving cycle

* B1S1 : upstream oxygen sensor/B1S2 : downstream oxygen sensor