Kia Optima Hybrid: Air Conditioning System / Photo Sensor Repair procedures

Inspection
1.
Ignition "ON"
2.
Using the scan tool.
3.
Emit intensive light toward photo sensor using a lamp, and check the output voltage change.
4.
The voltage will rise with higher intensive light and reduce with lower intensive light.

1. Auto Light Signal
2. Auto Light Signal Signal
3. Photo Signal (RH)
4. Led power (BAT)
5. Led GND (To BCM)
6. Photo Signal (LH)
7. Photo Power (SW)
8. 5V (Vcc)

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
With the (-) driver, remove the photo sensor (A) from the center of defrost nozzle.

3.
Install in the reverse order of removal.
Photo Sensor Description and Operation

Description 1. The photo sensor is located at the right of defrost nozzle. 2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving ...

Ambient Sensor Description and Operation

Description 1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Brake Actuation Unit Repair procedures


Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the air duct (A). 3. Remove air cleaner assembly (B). 4. Disconnect the brake fluid level switch connector (A), and remove the reservoir cap.     Be sure to completely remove foreign substances from ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Components and Components Location


Component Location [Vehicle Installation component] 1. Automatic transaxle2. Transaxle control module (TCM)3. Shift lever4. Data Link Connector (DLC) [Transaxle Installation component] 1. Input speed sensor2. Output speed sensor3. Solenoid valve connector4. Oil temperature sensor5. Valve body assembly6. ...

© 2025 Copyright www.koptimatfhev.com