DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Electrical check	Poor connector connection or damaged harness Open in HO2S control circuit Front HO2S
Enable Condition	Sensor ceramic temperature is greater than 640°C (1184°F) HO2S activation status Normal auxiliary battery voltage (11 to 16V) Front HO2S heating time greater than 30s (maximum heating or normal heating condition)
Threshold Value	Measured WRAF sensor label resistor is greater than 4644Ω
Diagnostic Time	2.5s
MIL ON Condition	2 driving cycles