Kia Sedona: Engine Coolant Temperature Sensor (ECTS) Description and Operation
Third generation YP (2014-2026) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and Operation
| Description |
Located in the engine coolant passage of the cylinder, the
Engine Coolant Temperature Sensor (ECTS) is used to detect the engine
coolant temperature. The ECTS uses a thermistor whose resistance changes
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.
Engine Coolant Temperature Sensor (ECTS) Specifications
Specification
TemperatureResistance (kΩ)°C°F-40-4048.14-20-414.13 ~ 16.830325.7920682.31 ~ 2.59401041.15601400.59801760.32
...
Engine Coolant Temperature Sensor (ECTS) Schematic Diagrams
Circuit Diagram
...
Other Information:
Field Effect Transistor (DATC) Repair procedures
Inspection
1.
Turn the ignition switch ON.
2.
Manually operate the control switch and measure the voltage of the blower motor.
3.
Operate the control switch to raise the voltage up to high ...
Road warning
Type A
Type B
The hazard warning flasher serves as a warning to other drivers to exercise extreme
caution when approaching, overtaking, or passing your vehicle.
It should be used whenever eme ...
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