Kia Cee'd: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and operation
Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage
of the cylinder head for detecting the engine coolant temperature. The ECTS
uses a thermistor that changes resistance with the temperature.
The electrical resistance of the ECTS decreases as the temperature increases,
and increases as the temperature decreases. The reference +5V is supplied to
the ECTS via a resistor in the ECM. That is, the resistor in the ECM and the
thermistor in the ECTS are connected in series. When the resistance value of
the thermistor in the ECTS changes according to the engine coolant temperature,
the output voltage also changes.
During cold engine operation, the ECM increases the fuel injection duration
and controls the ignition timing using the information of engine coolant temperature
to avoid engine stalling and improve drivability.

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the IATS connector.
3.
Measure resistance betwe ...
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
48.14
...
Other information:
Kia Cee'd JD Service Manual: Description and operation
Function Of Safety Power
Window
When driver door power window auto-up switch is operated, safety function is
activated.
1.
Safety function condition
When detect the force of 100N (using the 10N/mm spring) during the window
rising, window is ...
Kia Cee'd JD Service Manual: Blower Unit Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater & blower assembly.
(Refer to Heater - "Heater Unit")
3.
Separate the blower unit from the heater un ...