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Home >> Hyundai >> 2012 >> Genesis Coupe 3.8 Track, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC Troubleshooting) (2 Of 4) - 3.8L >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2) >> DTC Detecting Condition
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DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor signal voltage
  • Poor connection
  • Open in harness
  • HO2S (B1/S2)
  • ECM
Enable Conditions
  • Battery voltage ≥ 10V
  • Engine running ≥ 60 sec
  • Engine warm-up state
  • No disable faults
Threshold value Case 1
  • 1.2V ≤ Voltage of HO2S ≤ 3.9V

    (at pumping current ON)
Case 2
  • 0.415V ≤ Voltage of HO2S ≤ 0.515V

    (at pumping current OFF)
Diagnosis Time
  • Continuous (more than 76.5 sec. failure for every 90 sec. test)
MIL On Condition
  • 2 Driving Cycles
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