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Home >> Hyundai >> 2006 >> Elantra Limited >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G4GC-GSL 2.0) >> DTC Troubleshooting Procedures >> DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control >> Cooling System Inspection

Cooling System Inspection

  1. Check cooling system coolant level and fill if low.
  2. Check for a proper cooling system operation. Especially check that cooling and condenser fan working normally.
  3. Remove the thermostat and check the following items:
    1. Stuck or damaged
    2. Verify the temperature at which the valve begins to open.

    Valve opening temperature: 80~84°C(176~183.2°F)

    Valve opening temperature: 95°C(203°F)

  4. Is a problem found?

    Yes: 

    No: 

    • Go to next step as below.