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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 5.0L (8 Of 9) >> DTC P2254-00: O2 Sensor Reference Ground Circuit/Open (Bank 2 Sensor 1) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Circuit continuity check
  1. Poor connection
  2. Open in HO2S control circuit
  3. S1
Enable Condition
  • Sensor ceramic temperature is higher than 720°C (1328°F)
  • Battery voltage is between 10.7V and 16V.
Threshold Value
  • Reference virtual ground circuit open
Diagnostic Time
  • -
MIL On Condition
  • 2 driving cycles
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