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:

Kia Cee'd JD Owners Manual: Vehicles with smart key system
Whenever the engine start/stop button is changed to the ON position, the immobilizer system checks and verifies if the key is valid or not. If the key is valid, the engine will start. If the key is invalid, the engine will not start. To deactivate the immobilizer system Change the engin ...

Kia Cee'd JD Service Manual: Sunvisor Components and components location
Component Location   1. Sunvisor ...