Kia Niro: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Repair procedures
| 1. |
Switch "OFF" the ignition.
|
| 2. |
Remove the ECTS (Refer to "Removal").
|
| 3. |
After immersing the thermistor of the sensor into engine coolant, measure
resistance between the ECTS terminals 1 and 2.
|
| 4. |
Check that the resistance is within the specification.
Temperature
|
Resistance (kΩ)
|
°C
|
°F
|
-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
|
|
Engine Coolant Temperature
Sensor (ECTS) [Water Temperature Control Assembly]
| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
| 2. |
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
|
| 3. |
Remove the purge control solenoid valve.
(Refer to Engine Control / Fuel System - "Purge Control Solenoid Valve
(PCSV)")
|
| 4. |
Disconnect the engine coolant temperature sensor connector (A).
|
| 5. |
Remove the spring clip (B), and then pull the sensor from the water temperature
control assembly.
|
Note that engine coolant may flow out from the water temperature
control assembly when removing the sensor.
|
|
Engine Coolant Temperature
Sensor (ECTS) [EGR Cooler Tube]
| 1. |
Turn the ignition switch OFF and disconnect the battery (-) terminal.
|
| 2. |
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
|
| 3. |
Disconnect the engine coolant temperature sensor connector (A).
|
| 4. |
Remove the spring clip (B), and then pull the sensor from the water temperature
control assembly.
|
Note that engine coolant may flow out from the water temperature
control assembly when removing the sensor.
|
|
| • |
Install the component to the specified torque.
|
| • |
Note that internal damage may occur when the component is dropped.
If the component has been dropped, inspect before installing.
|
| • |
Apply the engine coolant to the O-ring.
|
| • |
Insert the sensor in the installation hole and be careful not
to damage it.
|
|
| 1. |
Install in the reverse order of removal.
|
| 2. |
Replenish the engine coolant.
(Refer to Engine Mechanical System - “Coolant”)
|
Circuit Diagram
ECTS [Water Temperature Control Assembly]
Harness Connector
ECTS [EGR Cooler Tube]
Harness Connector
...
Specification
Item
Specification
Coil Resistance (Ω)
774 - 946 [20°C (68°F)]
...
Engine Coolant Temperature Sensor (ECTS) Schematic diagrams
Crankshaft Position Sensor (CKPS) Specifications