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Home >> Hyundai >> 2003 >> Santa Fe Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3.5L) (1 Of 2) >> Troubleshooting For DTC >> 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. (error range is 2~3%.)
      TEMPERATURE SPECIFICATION

      Temperature (°C/°F) 0 (32°F) 20 (68°F) 40 (104°F) 80 (176°F)
      Voltage (V) 3.4~3.6 2.5~2.7 1.5~1.7 0.5~0.7
      Resistance (Ω) 5.1~6.5 2.1~2.7 0.9~1.3 0.26~0.36
      Fig 1: Scantool Display Engine Coolant Temperature Sensor Parameter - Sensor Data At Normal
      G07703499
      Fig 2: Scantool Display Engine Coolant Temperature Sensor Parameter - Sensor Data At Open
      G07703500
      Fig 3: Scantool Display Engine Coolant Temperature Sensor Parameter - Sensor Data At Short
      G07703501
  4. Is the measured ECTS parameter displayed within specifications?

    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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