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Home >> Hyundai >> 2012 >> Genesis 4.6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) - 4.6L >> DTC P2271: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • No signal activity
  • Poor connection
  • Short to Power in signal circuit
  • HO2S (B1/S2)
  • ECM
Enable Conditions
  • Battery voltage > 10.7V
  • Lambda = 1.1 for 9 sec
Threshold value
  • Downstream O2S voltage > 0.65V
Diagnosis Time
  • 9 sec
MIL On Condition
  • 2 Driving Cycles
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