Hyundai Santa Fe (TM): 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.

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

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 engine control module. (Refer to Engine Control/Fuel System - "Engine Control Module (ECM)")

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

Remove the installation bolts (B), and then remove the engine coolant temperature sensor from the engine.

Tightening Torque :

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

•	Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor.

5.	Supplement the engine coolant. (Refer to Engine Mechanical System - "Coolant")

Installation

•	Install the component with the specified torques.

•	Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

•	Apply the engine coolant to the O-ring.

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

1.	Installation is reverse of removal.

Circuit Diagram Harness Connector

Description Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system.

Other information: