DTC Information: DTC Detecting Condition

DTC DETECTING CONDITIONS AND POSSIBLE CAUSES

Item		Detecting Condition	Possible Cause
DTC Strategy		Signal check	Poor connection Open or short in signal circuit S2
Enable Conditions		Dew point end detected Battery voltage is higher than 11V Exhaust Gas temperature is between 662°F and 1472° F. No upstream O2 sensor heater error
Case1	Threshold Value	Sensor voltage is between 0.4V and 0.52V.
Case1	Diagnostic Time	600 sec
Case2	Threshold Value	Rate of heater pulse coupling to sensor signal is higher than 5 times per every 10 heating pulses
Case2	MIL ON Condition	2 driving cycle

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