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 > 10.7V Catalyst temperature (model) < 800°C (1472°F)
Case1	Threshold Value	Sensor voltage : 0.4~0.52 V
Diagnostic Time	600 sec
Case2	Enable Conditions	Catalyst temperature (model) > 600 °C
Threshold Value	Internal resistance > 40 kΩ
MIL ON Condition	2 driving cycle

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