Hyundai Santa Fe (DM): Intake Air Temperature Sensor (IATS). Description and Operation - Engine Control System - Engine Control/Fuel SystemHyundai Santa Fe (DM): 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. Turn the ignition ...

Intake Air Temperature Sensor (IATS). Specifications
Specification Temperature Resistance (kΩ) °C °F -40 -40 40.93 ~ 48.35 -20 -4 13.89 ~ 16.03 0 32 5.38 ~ 6.09 10 50 3.48 ~ 3.90 20 68 2.31 ~ 2.57 40 104 1.08 ~ 1.21 60 140 0.54 ~ 0.62 80 176 0.29 ...

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Specifications
Service Data Ignition System Ignition Coil Item Specification Rated Voltage (V) 13.5V Secondary Coil [Engine 1000RPM standard] Input voltage (V) 13.5V Dwell Time (ms) 4.0 - 4.6 Spark current (mA) Min. ...

Special Service Tools
Special Service Tools Tool(Number and Name) Illustration Use 09581-11000 Piston expander Spreading the front disc brake piston. ...

Troubleshooting
Trouble shooting Area of leakage occuring Area Applied engine ① Connecting part/under part of transfer case ② Connecting part of transmission Diesel 2.2 TCI ① Connecting part/under part of transfer ...