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Home >> Hyundai >> 2017 >> Azera Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0134: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor signal voltage
  1. Poor connection
  2. Open in harness
  3. HO2S(B1/S1)
  4. PCM
Enable Conditions
  • Battery voltage ≥ 10V
  • Engine running ≥ 60 sec
  • Engine warm-up state
  • No disable faults
Threshold value Case 1
  • 1.3V ≤ Voltage of HO2S ≤ 3.8V (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 Drive Cycles
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