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Home >> Kia >> 2004 >> Rio Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Fuel System & Fault Isolation >> DTC Troubleshooting >> DTC P0131: Ho2S Circuit Low Input (Bank 1, Sensor 1) >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

Item Detecting Condition Possible Cause
DTC Strategy
  • Circuit low voltage
  • Open in signal harness
  • Open in ground harness
  • Contact resistance in connectors
  • Faulty Heated O2 Sensor (HO2S)
Enable Conditions
  • Lambda regulation = 40%
  • Canister purge valve closed
  • No relevant failure
  • Battery voltage > 10V
  
Threshold Value
  • Sensor voltage < 0.02V and element resistance < 20Ω
Diagnostic Time
  • 25 sec. Continuous
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