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Home >> Hyundai >> 2012 >> Genesis 4.6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) - 4.6L >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1 / Sensor 2) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • O2S signal interrupt by heater
  • Poor connection
  • Open in harness
  • HO2S (B1/S2)
  • B1S2
Enable Conditions
  • Battery voltage > 10.7V
  • Exhaust gas temperature (model) < 900C
  • After enough heated
  • Time after dew point end detected > 10 sec
Threshold value
  • Counter of Δ 'Downstream O2S voltage' > 2V during 0.04sec after heater on->off > 5 times
Diagnosis Time
  • Continuous (more than 76.5 sec. failure for every 90 sec. test)
MIL On Condition
  • 2 Driving Cycles
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