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Home >> Kia >> 2023 >> Sorento X-Line EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Control System Diagnosis - 2.5L (VIN C) (10 Of 14) (Except HEV)) >> DTC P2181-F0: Cooling System Performance >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Thermostat open stuck monitoring
  • Poor connector connection
  • Low coolant level
  • Open or short of circuit
  • Faulty ECTS #1, 2, 3
  • Stuck or leaking thermostat
  • Faulty ITM
Enable Conditions
  • Less than 10% of deceleration fuel cut-off time
  • Less than 60% of low load state (vehicle speed less than 20km/h (12.5MPH))
  • Less than 15% of high speed state (vehicle speed more than 90km/h (56.3MPH))
  • Less than 50% of low speed (engine load less than 8.0 to 15.0%))
  • ECT does not drop much during high engine speed
    • Decrease in ECT is lower than 2°C (35.6°F) when engine speed is over 4500RPM for more than 40s
  • Ambient temperature is more than -8°C (17.6°F)
  • ECT at startup is more than -10°C (14°F) and lower than 57.6°C (135.7°F)
  • Battery voltage is between 11V and 16V
Threshold Value
  • When the ECT is lower than 77°C (170.6°F) when modeled ECT is above 88°C (190.4°F)
Diagnostic Time
  • Once per driving cycle
MIL ON Condition
  • 2 driving cycle