LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2011 >> Azera Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2) >> General Information >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Monitor signal voltage
  1. Poor connection
  2. Open in harness
  3. HO2S(B1/S2)
  4. ECM
Enable Conditions
  • Battery voltage ≥ 10V
  • Engine running ≥ 60 sec
  • Engine warm-up state
  • No disable faults
Threshold value Case 1
  • 1.2V ≥ Voltage of HO2S ≥ 3.9V

    (at pumping current ON)
Case 2
  • 0.415V ≥ Voltage of HO2S ≥ 0.515V

    (at pumping current OFF)
Diagnosis Time
  • Continuous (more than 76.5 sec. failure for every 90 sec. test)
MIL On Condition
  • 2 Driving Cycles
scientia non olet · About LEMON Manuals