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Home >> Hyundai >> 2014 >> Veloster Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) - Non-Turbo >> DTC P2237: O2 Sensor Pumping Current Circuit Open (Bank 1 Sensor 1) >> Wiring Inspection >> Current Pump Circuit Inspection

Current Pump Circuit Inspection

  1. IG KEY "OFF".
  2. Disconnect HO2S (S1) connector.
  3. IG KEY "ON" & ENG "OFF".
  4. Measure the voltage between Current Pump terminal of HO2S (S1) harness connector and chassis ground.

    Specification:  Approx 2.8V

    Fig 1: Measuring Voltage Between Current Pump Terminal Of HO2S (S1) Harness Connector And Chassis Ground
    G08814052Courtesy of HYUNDAI MOTOR AMERICA
  5. Is the measured voltage within specification?

    YES 

    Go to "COMPONENT INSPECTION " procedure.

    NO 

    Repair Open or Short circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

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