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Home >> Hyundai >> 2004 >> Accent GL, 2D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> DTC Troubleshooting Procedures >> DTC P0038: O2 Sensor Heater Circuit High (Bank 1, Sensor 2) >> Control Circuit Inspection
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Control Circuit Inspection

  1. Ignition "OFF"
  2. Disconnect HO2S sensor connector.
  3. Ignition "ON" & Engine "OFF"
  4. Measure voltage between terminal 3 of sensor harness connector.

    Specification: approximately 3.7V

    Fig 1: Measuring Voltage Between Terminal 3 Of Sensor Harness Connector
    G03851695Courtesy of HYUNDAI MOTOR CO.
  5. Is measure voltage within Specification?

    YES 

    NO 

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