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Home >> Kia >> 2009 >> Sedona Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (1 Of 2) >> P0140: Ho2S Circuit No Activity Detected (Bank 1/Sensor 2) >> DTC Detecting Condition

P0140: Ho2S Circuit No Activity Detected (Bank 1/Sensor 2): DTC Detecting Condition

DTC DETECTING CONDITION

Item Detecting Condition Possible cause
DTC Strategy
  • Open
  • Poor Connection
  • Open in harness
  • HO2S (B1/S2)
  • PCM
Enable Conditions
  • No sensor cooled status
  • The minimum airflow ≥ 2g/s
  • The battery voltage ≥ 10V
  • Engine running state > 60 sec.
  • Coolant temperature ≥ 60°C (140°F)
  • No fuel reduction
  • No transient condition
  • No fuel-cut state
  • No disabling fault
Threshold value Case 1
  • At pumping current ON
  • 1.2V ≤ Voltage of HO2S ≤ 3.9V
Case 2
  • At pumping current OFF
  • 0.415V ≤ Voltage of HO2S ≤ 0.515V
Diagnosis Time
  • Continuous (more than 6.3 sec. failure for every 10 sec. test)
MIL On Condition
  • 2 driving cycles
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