DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Signal check	Poor connection Open or Short to ground in power circuit Open in control circuit S1
Enable Conditions	Exhaust Gas temperature is higher than 450°C (842°F) Heating period is higher than 45 sec Battery voltage is higher than 10.7V and lower than 16V
Threshold Value	When Internal resistance is greater than threshold value (Calculated by exhaust gas temp. or heating power)
Diagnostic Time	60 sec.
MIL ON Condition	2 driving cycle