Hyundai Sonata: Engine Control System / Intake Air Temperature Sensor (IATS) Description and Operation

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

Description

Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature.

To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM uses not only MAPS signal but also IATS signal. This sensor has a Negative Temperature Coefficient (NTC) Thermister and it's resistance changes in reverse proportion to the temperature.

Manifold Absolute Pressure Sensor (MAPS) Repair procedures

Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the MAPS at idle and IG ON. Specification: Refer to "Specification" Removal 1. Tur ...

Intake Air Temperature Sensor (IATS) Specifications

Specification TemperatureResistance (k?)°C°F-40-4040.93 ~ 48.35-20-413.89 ~ 16.030325.38 ~ 6.0910503.48 ~ 3.9020682.31 ~ 2.57401041.08 ~ 1.21501221.56 ~ 1.74601400.54 ~ 0.62801760.29 ~ 0.34 ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: How Does the Air Bag System Operate?
The SRS consists of the following components: 1. Driver's front air bag module 2. Passenger's front air bag module 3. Side air bag modules 4. Curtain air bag modules 5. Retractor pre-tensioner assemblies 6. Air bag warning light 7. SRS control module (SRSCM)/ Rollover sensor 8. Front impact sensors ...

Hyundai Sonata LF 2014-2019 Service Manual: Center Pillar Trim Repair procedures
Replacement [Center Pillar Lower Trim] • Put on gloves to protect your hands. • When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to ...