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Home >> Hyundai >> 2017 >> Accent Sport >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2237: O2 Sensor Pumping Current CircuitOpen (Bank 1 Sensor 1) >> Component Inspection >> Visual Check
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Visual Check

  1. IG KEY "OFF".
  2. Disconnect HO2S(S1) connector.
  3. Check that HO2S(S1) is contaminated or damaged by foreign materials.
  4. Has a problem been found?

    YES 

    • Go to "Check HO2S(S1) performance" as follows.

    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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