DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Check open circuit of SR	Poor connector connection Open circuit of O2 sensor Faulty upstream O2 sensor
Enable Conditions	Internal resistance is higher than 950Ω Normal sensor (pump cell)
Threshold Value	The sensor voltage is between 2.3V and 2.9V
Diagnostic Time	Immediate
MIL ON Condition	2 driving cycles