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Home >> Hyundai >> 2021 >> Veloster Turbo >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (3 Of 3) >> DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) >> DTC Information and Inspection >> DTC Detecting Condition

DTC Information and Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Rationality check
  1. Poor connection
  2. Open or short power/ground in signal circuit
  3. S1
Case 1 Prerequisite Conditions
  • Closed loop fuel control
  • Fuel factor changes is higher than 0.1
Threshold Value
  • The large gap between boost pressure and calculated low pressure occurs more than 6 times (30hpa during 1 sec.)
Case 2 Prerequisite 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 Prerequisite Conditions
  • Fuel cut condition
Threshold Value
  • S1 sensor voltage is lower than 0V
Diagnostic Time
  • Immediate
MIL
  • 2 Driving Cycle
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