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Home › Hyundai › 2021 › Accent SE, Standard Trans › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (6 Of 6) › DTC P2271-00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2) › DTC Information And Inspection › DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • No signal activity
  1. Poor connection
  2. Short to Power in signal circuit
  3. HO2S (S2)
  4. ECM
Prerequisite Conditions
  • Battery voltage is higher than 10.7V
  • Lambda is than 1.1 for 8 sec
Threshold Value
  • S2 sensor voltage is higher than 0.69~0.7V
Diagnostic Time
  • 10 sec
MIL
  • 2 Driving Cycle
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