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Home >> Hyundai >> 2010 >> Azera GLS >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2) >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Monitor HO2S's response time
  • Poor connection
  • Faulty HO2S
  • Faulty PCM
Enable Conditions
  • The same conditions as P0420's enable conditions
Threshold value
  • The calculated response time is too long.
Diagnosis Time
  • One time during catalyst diagnosis
MIL On Condition
  • 2 driving cycles
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