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Home › Hyundai › 2018 › Accent Limited › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) › DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) › Component Inspection › Visual Check

Visual Check

  1. Turn the ignition switch "OFF" & Disconnect HO2S (S1) connector.
  2. Check that HO2S (S1) is contaminated or damaged by foreign materials.
  3. Has a problem been found?

    YES 

    NO 

    • Substitute with a known - good HO2S (S1) and check for proper operation. If the problem is corrected, replace HO2S (S1) and go to "Verification of Vehicle Repair " procedure.
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