General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Monitor the current through the heater	Poor Connection HO2S(B1/S2) ECM
Enable Conditions	Engine Running > 60 sec. Heater Duty Cycle > 40% Max. Duty Cycle - Min. Duty Cycle < 5%
Threshold value	Filtered Heater Current < threshold value
Diagnosis Time	Continuous (More than 2.5 second failure for every 5 second test)
MIL On Condition	2 Driving Cycles