Hyundai Sonata: Engine Control System / Ambient Temperature Sensor (ATS) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / 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. The electrical resistance of the thermistor decreases as the temperature increases, and increases as the temperature decreases This sensor has a Negative Temperature Coefficient (NTC) and its resistance is in inverse proportion to the temperature.

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. 4. Check that the resistance is within the speci ...

Ambient Temperature Sensor (ATS) Specifications

Specification Temperature[°C(°F)]Resistance(k?) -40(-40)841.2~1019.3 -20(-4)263.8~306.50(32)92.4~102.810(50)57.0~62.220(68)36.2~38.840(104)15.3~16.750(122)10.3~11.460(140)7.1~8.080(17 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Rear Door Inside Handle Repair procedures
Replacement 1. Remove the rear door trim. (Refer to Rear Door - "Rear Door Trim") 2. Remove the rear door side curtain assembly. (Refer to Rear Door - "Rear door side curtain assembly") 3. After loosening the mounting screws, then remove the rear door inside handle (A). 4. Install ...

Hyundai Sonata LF 2014-2019 Owners Manual: Defroster
NOTICE To prevent damage to the conductors bonded to the inside surface of the rear window, never use sharp instruments or window cleaners containing abrasives to clean the window. If you want to defrost and defog the front windshield, refer to the "Windshield Defrosting and Defogging" section in ...