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Home › Hyundai › 2014 › Elantra GT Automatic Trans › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis - 2.0L (2 Of 2) › DTC P2237: O2 Sensor Pumping Current Circuit/Open (Bank 1/Sensor 1) › DTC Information › DTC Detecting Condition

DTC Information: DTC Detecting Condition
Item Detecting Condition Possible cause
DTC Strategy
  • Rationality check
  1. Poor connection
  2. Open or short power/ground in signal circuit
  3. S1
Enable Conditions
  • Case 1: Closed loop fuel control, Fuel factor changes is higher than 0.1
  • Case 2: Target lambda is between 0.97 and 1.03, Integrated mass flow is higher than 0.3kg
  • Case 3: Fuel cut condition
Threshold value
  • Case 1: Sensor voltage is between 1.49 and 1.51
  • Case 2: Sensor voltage is between 1.49 and 1.51
  • Case 3: S1 sensor voltage is lower than 0V
Diagnosis Time
  • Immediate
MIL On Condition
  • 2 driving cycle
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