Hyundai Creta: 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 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.
Specifications
Temperature [°C(°F)]
|
Resistance(kΩ)
|
-40(-40)
|
48.14
|
-20(-4)
|
14.13 ~ 16.83
|
0(32)
|
5.79
|
20(68)
|
2.31 ~ 2.59
|
40(104)
|
1.15
|
60(140)
|
0.59
|
80(176)
|
0.32
|
Schematic diagrams
(M/T)
(A/T)
Repair procedures
1. |
Turn ignition switch OFF.
|
2. |
Disconnect ECTS connector.
|
4. |
After immersing the thermistor of the sensor into engine coolant, measure
resistance between ECTS terminals 1 and 3.
|
5. |
Check that the resistance is within the specification.
Specification : Refer to "Specification"
|
|
1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
terminal.
|
2. |
Disconnect the engine coolant temperature sensor connector (A).
|
3. |
Removal the water temperature control assembly (B).
|
1. |
Install in the reverse order of removal.
Engine coolant temperature sensor :
29.4 ~ 39.2 N.m (3.0 ~ 4.0 kgf.m, 21.7 ~ 28.9 lb-ft)
|
|
Description and operation
Description
Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure
Sensor and detects the intake air temperature.
To calcu ...
Description and operation
Description
Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one
of the most important sensors of the engine control system. If th ...
Other information:
Hyundai Creta GS 2014-2024 Service Manual: Battery Sensor
Description and operation
Description
Vehicles have many control units that use more electricity. These units control
their own system based on information from diverse sensors. It is important
to have a stable power supply as there diverse sensors giving a variety of informat ...
Hyundai Creta GS 2014-2024 Service Manual: Components and components location
Components Location
1. Fuel Tank
2. Fuel Pump
3. Fuel Filter
4. Fuel Pressure Regulator
5. Canister
6. Fuel Tank Air Filter
7. Fuel Tank Band
8. Ventilation Hose
9. Vapor Tube
10. Fuel Filler Hose
11. Leveling Hose
12. Fuel Pump Plate ...