P0153: O2 Sensor Circuit Slow Response (Bank 2/Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Monitor HO2S's response rate	Poor connection Faulty HO2S Faulty ECM
Enable Conditions	Engine at operating temperature Engine run time > 60sec Drive at a steady speed between 45-55 mph(72-88 km/h) Engine Coolant > 70°C(158°F) No disabling faults
Threshold value	The calculated response rate is too slow (out of threshold in ECM)
Diagnosis Time	Continuous
MIL On Condition	2 Driving Cycles