Kia Cee'd: Engine Control System / Intake Air Temperature Sensor (IATS) Description and operation

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. ...

Intake Air Temperature Sensor (IATS) Specifications

Specification   Temperature Resistance (kΩ) °C °F -40 -40 40.93 ~ 48.35 ...

Other information:

: Cold Weather Precautions. Breaking-In. Driving Economically
Cold Weather Precautions The functional operation of some components and systems can be affected at temperatures below approximately -13°F (-25°C). Breaking-In You need to break in new tires for approximately 300 mi (480 km). During this time, your vehicle may exhibit some unusual driving ch ...

Kia Cee'd JD Service Manual: Troubleshooting
Basic Troubleshooting Basic Troubleshooting Guide Customer Problem Analysis Sheet Basic Inspection Procedure Measuring Condition of Electronic Parts' Resistance The measured resistance at high temperature after vehicle running may be high or lo ...