Hyundai Santa Fe: 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 diagnostic tool 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 [°C (°F)] Resistance (kΩ) -40 (-40) 40.93 - 48.35 -20 (-4) 13...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: If you decide to pull a trailer?

Here are some important points if you decide to pull a trailer: Consider using a sway control. You can ask a trailer hitch dealer about sway control. Do not do any towing with your vehicle during its first 1,200 miles (2,000 km) in order to allow the engine to properly break in...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Owner maintenance

WARNING Performing maintenance work on a vehicle can be dangerous. If you lack sufficient knowledge and experience or the proper tools and equipment to do the work, we recommend that having it done by an authorized HYUNDAI dealer. ALWAYS follow these precautions for performing maintenance work: Park your vehicle on level ground...