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Home >> Kia >> 2019 >> Optima LX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 221 (Engine Control System (PHEV)) >> Engine Coolant Temperature Sensor (ECTS) >> Repair Procedures >> Inspection

Repair Procedures: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Turn the ignition switch OFF.
  2. Remove the ECTS (Refer to "REMOVAL ").
  3. After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 1 and 3.
  4. Check that the resistance is within the specification.
    Temperature Resistance (kΩ)
    °C °F
    -40 -40 48.14
    -20 -4 14.13 - 16.83
    0 32 5.79
    20 68 2.31 - 2.59
    40 104 1.15
    60 140 0.59
    80 176 0.32
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