Hyundai Genesis: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the ECTS connector.

3.	Remove the ECTS (Refer to "Removal").

4.	After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 3 and 4.

5.	Check that the resistance is within the specification. Specification: Refer to “Specification”

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) cable.

2.	Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Intake and Exhaust System")

3.	Disconnect the engine coolant temperature sensor connector (A).

4.	Remove the water temperature sensor from the water temperature control assembly. • Note that engine coolant may leak out of the water temperature control assembly when removing the sensor.

Installation

• Install the component with the specified torques. • Note that internal damage may occur if the component drops. If the component drops, inspect it before installation.

• Insert the sensor in the installation hole and be careful not to damage during installation.

1.	To install, reverse the removal procedure.

• Supply the engine coolant. (Refer to Engine Mechanical System - "Coolant System")

Engine Coolant Temperature Sensor (ECTS) Schematic Diagrams

Circuit Diagram ...

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