Kia Optima Hybrid: Engine Control System / Intake Air Temperature Sensor (IATS) Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / 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. Test ConditionOutput Voltage (V)IG ON3.9 ~ 4.1Idle0.8 ~ 1.6 Removal 1. Turn ...

Intake Air Temperature Sensor (IATS) Specifications

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)1.56 ~ 1.7460(140)0.54 ~ 0.6280(176)0.29 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Blind Spot Detection Unit Repair procedures


Removal Blind spot detection (BSD) unit 1. Disconnect the negative (-) battery.     Be careful when removing the blind spot detection unit. The bracket may break off from the bumper. 2. Remove the rear bumper. (Refer to Body - "Rear Bumper Cover") 3. Disconnect the BSD connector (A) from the ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heater hose pump Repair procedures


Inspection 1. Connect the battery voltage and check the heater hose pump motor rotation. 1. +2. - 2. If the heater hose pump voltage is not operated well, substitute with a known-good heater hose pump and check for proper operation. 3. If the problem is corrected, replace the heater hose pump. Replacement ...

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