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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 P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Rationality check
  1. Poor connection
  2. Open in HO2S control circuit
  3. S1
Case 1 Enable Condition
  • Sensor ceramic temperature is higher than 720°C (1328°F)
  • Ceramic temperature sensor ceramic sensor target and actual temperature difference below 65°C (149°F)
  • Battery voltage is between 10.7V and 16V.
Threshold Value
  • Sensor voltage is between 0.15V and 0.2V
Case 2 Enable Condition
  • Sensor ceramic temperature is higher than 720°C (1328°F)
  • Battery voltage is between 10.7V and 16V.
Threshold Value
  • S1 sensor voltage is lower than 0V
Diagnostic Time
  • 0.1 sec
MIL On Condition
  • 2 driving cycle