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 Owners Manual: Using the clutch
The clutch pedal should be depressed all
the way to the floor before shifting, then
released slowly. The clutch pedal should
always be fully released while driving. Do
not rest your foot on the clutch pedal
while driving. This can cause unnecessary
wear. Do not partially engage the
clu ...
Kia Cee'd JD Service Manual: Repair procedures
Diagnosis With GDS
1.
BSD system defects can be quickly diagnosed with the GDS. GDS operates
actuator quickly to monitor, input/output value and self diagnosis.
2.
Connect the cable of GDS to the data link connector in driver si ...