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Home › Genesis › 2017 › G90 5.0 Ultimate, RWD › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) - 5.0L › DTC P2254: O2 Sensor Reference Ground Circuit Open (Bank 2 Sensor 1) › DTC Information › DTC Detecting Condition

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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