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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (PHEV) (3 Of 3) >> DTC P2237: O2 Sensor Pumping Current Circuit/Open (Bank 1 / Sensor 1) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical check - check symptoms related to Lambda sensor open circuit
  1. Poor connection or damaged harness
  2. Open in HO2S control circuit
  3. Front HO2S
Enable Conditions
  • Wide range sensor pump current valid
  • Upstream O2 sensor operative readiness is detected
  • Battery voltage is between 11V and 16V
Threshold Value
  • Pumping current circuit open (VIP)
  • Sensor signal voltage is lower than 2.1V during fuel cut off
Diagnostic Time
  • Within 15sec. after related symptom detected.
Mil On Condition
  • 2 Driving Cycles
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