Hyundai Sonata LF: Engine Control System / Intake Air Temperature Sensor (IATS) Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / Intake Air Temperature Sensor (IATS) Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the IATS connector.

3.	Measure resistance between the IATS terminals 3 and 4.

Check that the resistance is within the specification.

Specification: Refer to “Specification”

Intake Air Temperature Sensor (IATS) Schematic Diagrams

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Ambient Temperature Sensor (ATS) Description and Operation

Description Ambient Temperature Sensor (ATS) is installed on the front-end module and senses the ambient temperature. ECM receives not only the intake air temperatue but also the ambient air temperature informations at the same time to control the intake air quantity precisely provided through the turbo charger...

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Hyundai Sonata LF 2014-2019 Service Manual: Coolant Repair procedures

Replacement And Air Bleeding Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator. When pouring engine coolant, be sure to shut the relay box lid and not to let coolant spill on the electrical parts or the paint...

Hyundai Sonata LF 2014-2019 Service Manual: Special Service Tools