P2A00: O2 Sensor Not Ready (Bank 1/Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Detects Loss of O2 Ready status, which would lead to Open Loop Fueling operation	Poor Connection Faulty HO2S Faulty PCM
Enable Conditions	Engine Running Ignition ON Deceleration fuel cut off not present No Disabling Faults Present All of the above for minimum time ≥ 20sec.
Threshold value	O2 Ready Status lost
Diagnosis Time	Continuous
MIL On Condition	1 Driving Cycle