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HOMESERVICE MANUALSHYUNDAI2011SANTA FE GLS, 3.5 G, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 23 (ENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 2) - G2.4 DOHC)DTC P0139: O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1/SENSOR 2)GENERAL INFORMATIONDTC DETECTING CONDITION
2011 Hyundai Santa Fe GLS, 3.5 G, AWD

General Information: DTC Detecting Condition

2011 Hyundai Santa Fe GLS, 3.5 G, AWDSECTION DTC Detecting Condition
WARNING: This page is about a different variant/trim than selected.
DTC DETECTING CONDITION

Item Detecting Condition Possible Cause
DTC Strategy
  • Slow response (Switching time check at entry in fuel cut off)
  • Leak in intake or exhaust system
  • Faulty fuel system.
  • Front and rear HO2S connections reversed.
  • Poor connection or damaged harness
  • HO2S contamination
Enable Conditions
  • Coolant temperature >73°C (163°F)
  • Downstream O2 sensor readiness detected
  • Downstream O2 sensor pre-heating phase finished
  • 400°C (752°F)< Catalyst temperature model
  • 0.6V< Downstream O2 sensor signal at entry into fuel cut-off
  • No relevant failure
  • 11V < Battery voltage < 16V
Threshold Value
  • Average ratio between measured and maximum allowed rich to lean switching time entering fuel cut-off >1
Diagnostic Time
  • 4 valid fuel cut-off phases
Mil On Condition
  • 2 Driving Cycles
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • You are not confident in the next step or safety outcome.