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Home >> Hyundai >> 2002 >> XG350 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> Diagnostic Tests >> DTC P0136: Ho2S Circuit (Bank 1/Sensor 2) >> Scantool Diagnostics >> Monitor Scantool Data
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Monitor Scantool Data

  1. Warm up the engine to normal operating temperature.
  2. Connect Scantool then, Ignition "ON" & Engine "ON".
  3. Monitor the "HO2S VOLTAGE (B1S2)" parameter on scantool.

    Specification: Appox. 0.4~0.7 Volts at idle after warming-up.

    Fig 1: Scantool Screen Display - HO2S Voltage (B1S2) Parameter
    G07325621Courtesy of HYUNDAI MOTOR CO.
  4. Is the HO2S VOLT (B1/S2) parameter displayed within specification?

    YES

    • Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO

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