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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 P0118: Engine Coolant Temperature Circuit High Input › Scantool Diagnostics › Monitor Scantool Data

Monitor Scantool Data

  1. Engine "ON".
  2. Monitor Engine Coolant Temperature Sensor parameter on Current data.
  3. After the engine has been starting, Check that ECT rises steadily to about 90°C (194°F) and ECT stabilizes when the thermostat opens.
    1. Specification: ECT rises steadily to about 90°C (194°F) and ECT stabilizes when the thermostat opens.
      ENGINE COOLANT TEMPERATURE SENSOR SPECIFICATIONS

      Temperature (°C/°F) 0°C (32°F) 20°C (68°F) 40°C (104°F) 80°C (176°F)
      Resistance (kΩ) 5.9 2.5 1.1 0.3
      Voltage (V) 3.4~3.6 2.5~2.7 1.5~1.7 0.5~0
      Fig 1: Scantool Screen Display - Sensor Data At Normal
      G07325501Courtesy of HYUNDAI MOTOR CO.
      Fig 2: Scantool Screen Display - Sensor Data At Open
      G07325502Courtesy of HYUNDAI MOTOR CO.
      Fig 3: Scantool Screen Display - Sensor Data At Short
      G07325503Courtesy of HYUNDAI MOTOR CO.
  4. Is Current data displayed correctly?

    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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