DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Heater circuit monitoring	Poor connector connection O2 sensor (Bank1/sensor2) heater ECM
Enable Conditions	O2 sensor (down) heating time is more than 58s Coolant temperature is is lowered to over 25°C (77°F) after engine "OFF" Battery voltage is higher than 10V and lower than 16V
Threshold Value	O2 sensor (down) internal resistance is higher than 1kΩ and lower than 22.5kΩ
Diagnostic Time	10s
MIL ON Condition	2 driving cycles