Hyundai Sonata: Engine Control System / Ambient Temperature Sensor (ATS) Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the ATS connector.
3.
Measure resistance between the ATS terminals 1 and 2 [B1/S1].
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 under cover front pannel.
(Refer to Engine Mechanical System - "Engine and Transaxle Assembly")
3.
Disconnect the connector, an then remove the ambient temperature sensor (A).

Installation
   
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
1.
Install in the reverse order of removal.
Ambient Temperature Sensor (ATS) Schematic Diagrams
Circuit Diagram ...

Boost Pressure Sensor (BPS) Description and Operation
Description The Boost Pressure Sensor (BPS) is installed on the intercooler assembly and measures the pressure of the compressed air in turbocharger. ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: ESC operation
ESC ON condition When the ignition switch is in the ON position, the ESC and the ESC OFF indicator lights illuminate for approximately three seconds and goes off, then the ESC is turned on. When operating When the ESC is in operation, the ESC indicator light blinks: When you apply your brakes u ...

Hyundai Sonata LF 2014-2019 Service Manual: Spark Plug Description and Operation
Description A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine. A spar ...

© 2018-2025 www.hsonatalf.org