P0057: Ho2S Heater Control Circuit Low (Bank 2/Sensor 2): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Detects a short to ground or open	Poor Connection Open in Power Circuit Open or short to ground in control circuit HO2S(B2/S2) ECM
Enable Conditions	No disabling Faults Present Engine Running 11V ≤ Ignition Voltage ≤ 16V
Threshold value	short to ground or open circuit
Diagnosis Time	Continuous (More than 5 seconds failure for every 10 seconds test)
MIL On Condition	2 Driving Cycles