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Home >> Hyundai >> 2007 >> Sonata SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3.3L) (1 Of 2) >> DTC Troubleshooting Procedures >> DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control >> 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 82±2°C (176-183.2 °F) and ECT stabilizes when the thermostat opens.

    Specification : ECT rises steadily to about 82±2°C (176~ 183.2 °F) and ECT stabilizes when the thermostat opens.

    TEMPERATURE AND RESISTANCE SPECIFICATION

    Temp. (°C/°F) Resistance (kΩ) Temp. (°C/°F) Resistance (kΩ)
    -40 (-40) 48.14 40 (104) 1.15
    -20 (-4) 14.13 ~ 16.83 60 (140) 0.59
    0 (32) 5.79 80 (176) 0.32
    20 (68) 2.31 ~ 2.59    
    Fig 1: Diagnosis Function Screen Display - Coolant
    G04891340Courtesy of HYUNDAI MOTOR CO.
  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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