Kia Optima: Engine Coolant Temperature Sensor (ECTS). Description and Operation
Description
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.
Intake Air Temperature Sensor (IATS). Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the IATS connector.
3.
Measure resistance between the IATS terminals 3 and
4.
...
Engine Coolant Temperature Sensor (ECTS). Specifications
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
48.14
-20
-4
...
See also:
Keep belts clean and dry
Seat belts should be kept clean and dry. If belts become dirty, they can be cleaned
by using a mild soap solution and warm water. Bleach, dye, strong detergents or
abrasives should not be used bec ...
Speed sensing door lock system (if equipped)
All doors will be automatically locked after the vehicle speed exceeds 15 km/h
(9.3 mi/h). And all doors will be automatically unlocked when you turn the engine
off or when you remove the ignition ...
Removal
1.
Remove the shift lever knob.
(Refer to the BD group - "Console")
2.
Remove the console upper cover
(A).
3.
Disconnect the conn ...
Categories
Kia Optima Manuals
- Kia Optima DL3 2019-2026 Owners Manual
- Kia Optima DL3 2019-2026 Service and Repair Manual
- Kia Optima TF 2011-{2019} Owners Manual
- Kia Optima TF 2011-2026 Service Manual
- Kia Optima MS/Magentis 2000-2005 Owners Manual
