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Home >> Kia >> 2010 >> Sedona Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0139: HO2S Circuit Slow Response (Bank 1/Sensor 2) >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

DTC DETECTING CONDITION

Item Detecting Condition Possible cause
DTC Strategy
  • Determines if Rear O2 Sensor is acceptable for Idle Catalyst Monitor use
  • Poor connection
  • Faulty HO2S
  • Faulty PCM
Enable Conditions
  • Idle Catalyst Monitor Diagnostic is enabled
  
Threshold value
  • The difference time between the front sensor response and the rear sensor response to fuel shift < Forced to lean or rich) ≥ 25sec.
Diagnosis Time -
MIL On Condition
  • 2 driving cycles
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