General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible Cause
DTC Strategy	Rationality check	Poor connection Short to power in signal circuit B1S2 ECM
Enable Conditions	After enough heated Battery voltage > 10.7V Catalyst temperature (model) < 800°C (1472°F) Time after dew point end detected > 10 sec
Threshold Value	Counter of [ Δ ushk > 2V during 0.04 sec after heater on→off] > 5 times
Diagnostic Time	2 driving cycle
* Δushk : Sum of the signal voltage change value (B1S2) * B1S1 : upstream oxygen sensor / B1S2 : downstream oxygen sensor

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