Hyundai Tucson: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Repair procedures
| 1. |
Turn the ignition switch OFF. |
| 2. |
Remove the ECTS (Refer to "Removal"). |
| 3. |
After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 3 and 4. |
| 4. |
Check that the resistance is within the specification.
Specification: Refer to “Specification”
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| 1. |
Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. |
Disconnect the engine coolant temperature sensor connector (A). 
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| 3. |
Supplement the engine coolant.
(Refer to Engine Control System - “Cooling System”)
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| • |
Install the component with the specified torques. |
| • |
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
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| • |
Apply the engine coolant to the O-ring. |
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| • |
Insert the sensor in the installation hole and be careful not to damage.
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| 1. |
Install in the reverse order of removal.
Engine Coolant Temperature Sensor installation :
29.4 ~ 39.2 N.m (3.0 ~ 4.0 kgf.m, 21.7 ~ 28.9 lb-ft)
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Circuit Diagram
(M/T)
(A/T)
...
Description
Crankshaft Position Sensor (CKPS) detects the crankshaft
position and is one of the most important sensors of the engine control
system. If there is no CKPS signal input, the engine ...
Engine Coolant Temperature Sensor (ECTS) Schematic Diagrams
Crankshaft Position Sensor (CKPS) Description and Operation