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Home >> Hyundai >> 2021 >> Accent Limited >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (6 Of 6) >> DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) >> DTC Information And Inspection >> DTC Detecting Condition
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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
  • Fuel system status is same as Closed loop
  • Differential of fuel factor is greater than 15%
  • Internal resistance signal is same as Valid
Threshold Value
  • Sensor voltage is between 2.48V and 2.51V
Case 2 Prerequisite Conditions
  • Target lambda is less than -3% or Target lambda is greater than 3%
Threshold Value
  • Sensor voltage is between 2.48V and 2.51V
Case 3 Prerequisite Conditions
  • Reference Cell Voltage is between 0.43V and 0.47V
Threshold Value
  • Sensor voltage is less than 1V or Sensor voltage is greater than 4V
Diagnostic Time
  • Continuous
MIL
  • 2 Driving Cycle
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