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Home >> Hyundai >> 2012 >> Equus Signature >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) - 5.0L >> DTC P0150: O2 Sensor Circuit (Bank 2/Sensor 1) >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
Case1 DTC Strategy
  • Open circuit
  1. Poor connection
  2. Open or short power/ground in signal circuit
  3. B2S1
Enable Conditions
  • Dew point end detected
  • Target lambda = 1
  • Battery voltage > 10.7V
  • Exhaust gas temperature (model): 600°C ~ 900°C (1112°F~1652°F)
  • Upstream O2S Heater control On
Threshold Value
  • Internal resistance > 40kΩ
Case2 DTC Strategy
  • Feedback check
Enable Conditions
  • Dew point end detected
  • Target lambda = 1
  • Battery voltage > 10.7V
  • Exhaust gas temperature (model) < 900°C (1652°F)
  • Upstream O2S Heater control On
Threshold Value
  • Average of loaded voltage >2.8V
Diagnostic Time
  • -
MIL ON Condition
  • 2 driving cycle
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