FixVault

DTC P0136: Ho2S Circuit (Bank 1/Sensor 2): DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

Item Detecting Condition Possible Cause
DTC Strategy
  • Circuit voltage is monitored to check the circuit continuity
  • Poor connection
  • Open in HO2S circuit
  • Faulty HO2S
  • Faulty ECM
Enable Conditions
  • Engine coolant > 77°C (170.6°F)
  • Engine speed > 1200 rpm
  • Load value > 25%
Threshold value
  • Circuit voltage after applying 5V to sensor is greater than or equal to 4.5V
Diagnosis Time
  • Continuous
MIL On Condition
  • 2 driving cycles