Hyundai Elantra: 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.

Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the MAPS at idle and IG ON.
ConditionOutput Voltage (V)IG ON3.9 ~ 4.1Idle0.8 ~ 1.6
Remo ...
Specification
Temperature [°C(°F)]Resistance (k?)-40(-40)40.93 ~ 48.35-20(-4)13.89 ~ 16.030(32)5.38 ~ 6.0910(50)3.48 ~ 3.9020(68)2.31 ~ 2.5740(104)1.08 ~ 1.2150(122)0.76 ~ 0.8560(140)0.54 ~ 0.6 ...
Other information:
Hyundai Elantra AD (2016-2020) Owners Manual: Transmission Shift Indicator
Manual transmission shift indicator
This indicator informs which gear is desired while driving to save fuel.
Shifting up : ▲2, ▲3, ▲4, ▲5, ▲6
Shifting down :▼1, ▼2, ▼3, ▼4, ▼5
For example
: Indicates that shifting up to
the 3rd gear is desired (currently the shift ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the smart key unit.
(Refer to Body - "Smart Key Unit")
4.
Disconnect the body control module connectors (A).
5.
Remove the body control ...