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Home >> Hyundai >> 2021 >> Ioniq Plug-In Hybrid SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (PHEV) (1 Of 3) >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal check
  1. Poor connection
  2. Open circuit
  3. S2
Enable Conditions
  • Heating sensor status
  • Battery voltage is higher than 10.7V and lower than 16V
Threshold Value
  • If the voltage of the rear oxygen sensor is 0.2V or higher while the fuel cut is being carried out
Diagnostic Time
  • -
MIL ON Condition
  • 2 driving cycle
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