DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Evaluate O2 sensor heater performance.	Related fuse blown or missing Heater control circuit open or short Power supply circuit open or short Poor connection or damaged harness Faulty HO2S
Enable Conditions	Upstream O2 sensor normal heating time is more than 1s Battery voltage is between 11V and 16V
Threshold Value	Upstream O2 sensor tip temperature is lower than 670°C (1238°F)
Diagnostic Time	20s
Mil On Condition	2 driving cycles