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Home › Hyundai › 2012 › Veloster Standard Trans › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (2 Of 2) - Non-Turbo › DTC P2237: O2 Sensor Pumping Current Circuit Open (Bank 1 Sensor 1) › General Information › DTC Detecting Condition

General 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
Case1 Enable Conditions
  • S1 sensor voltage: 1.49 ~ 1.5V
Threshold Value
  • Deviation of average correction value of fuel ratio >0.1
Diagnostic Time
  • 3 sec
Case2 Enable Conditions
  • Fuel cut condition > 3sec
Threshold Value
  • S1 sensor voltage < 1.7V
Diagnostic Time
  • 5 sec
Case3 Enable Conditions
  • Target value of fuel ratio ≤ 0.97
  • S1 sensor voltage: 1.49 ~ 1.5V
Threshold Value
  • Integrated air mass > 0.2kg
Threshold Value
  • 3 sec
MIL ON Condition
  • 2 driving cycle
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