Kia Sorento: 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.
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
48.14
-20
-4
14.13 ~ 16.83
0
32
5.7 ...
See also:
Heated Steering wheel System Circuit Diagram
Terminal Function
Housing
Pin
Function
Wire color
Pad
A
GND
Back
B
HEATER
Yellow
C
...
Oil Pressure Switch Inspection
1.
Check the continuity between the terminal and the body with an ohmmeter.
If there is no continuity, replace the oil pressure switch.
2.
...
ATF Warmer Description
The ATF warmer is mounted on the valve body cover to reduce oil viscosity
friction by increasing oil temperature under cold condition, which in turn improves
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