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Home >> Hyundai >> 2019 >> Accent Limited >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> 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

Troubleshooting Condition Possible Cause
Main action
  • Rationality check
  1. Poor connection
  2. Open or short power/ground in signal circuit
  3. S1
Case 1 Enable Conditions
  • Closed loop fuel control
  • Fuel factor changes is higher than 0.1
Threshold Value
  • Sensor voltage is between 1.49 and 1.51
Case 2 Enable Conditions
  • Target lambda is between 0.97 and 1.03
  • Integrated mass flow is higher than 0.3kg
Threshold Value
  • Sensor voltage is between 1.49 and 1.51
Case 3 Enable Conditions
  • Fuel cut condition
Threshold Value
  • S1 sensor voltage is lower than 0V
Diagnostic Time
  • Immediate
MIL
  • 2 driving cycle
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