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Home › Kia › 2012 › Optima SX › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) - 2.0L › DTC P2237: O2 Sensor Pumping Current Circuit Open (Bank 1/Sensor 1) › General Information › DTC Detecting Condition

General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Pumping current circuit open (VIP)
  1. Poor connection or damaged harness
  2. Open in HO2S control circuit
  3. Front HO2S
Enable Conditions
  • Wide range sensor pump current valid
Threshold value
  • Symptom detected on no activity
  • Signal < 2.1V during fuel cut off
Diagnosis Time
  • Within 15 Seconds after related symptom detected.
MIL On Condition
  • 2 Drive Cycles
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