2012 Hyundai Equus V8-5.0LFACTORY OEM SERVICE PROCEDURE

Coolant Temperature Sensor/Switch (For Computer): Service and Repair





Inspection

1. Turn the ignition switch OFF.
2. Remove the ECTS .
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.

Specification:Refer to "Specification"

Removal

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the engine coolant temperature sensor connector (A), and then remove the engine coolant temperature sensor (B).

Factory service manual diagram



3. Supplement the engine coolant .

Installation

CAUTION:
- 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.

CAUTION:
- Apply the engine coolant to the O-ring.

CAUTION:
- Insert the sensor in the installation hole and be careful not to damage.

1. Installation is reverse of removal.

Engine Coolant Temperature Sensor installation :
19.6 - 2.0 N.m (3.0 - 4.0 kgf.m, 14.5 - 28.9 lb-ft)

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.