Hyundai Santa Fe (TM): Air conditioning System / Photo Sensor. Repair procedures
| Inspection |
| 1. |
Emit intensive light toward the photo sensor using a lamp, and check
the output voltage change.
|
| 2. |
The voltage will rise with higher intensive light and reduce with lower
intensive light.
|
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal.
|
| 2. |
Using a screwdriver or remover, remove the photo sensor (A).
|
| 3. |
Press the lock pin, separate the photo sensor connector (A).
|
| 4. |
Install in the reverse order of removal.
|
Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode.
Description 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, and decrease with higher temperature.
Other information:
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: In-car Sensor. Description and operation
Description The In-car air temperature sensor is built in the heater & A/C control unit. The sensor consists of a thermistor that measures the inside temperature. The signal decided by the resistance value that changes in accordance with perceived inside temperature, is delivered to heater control unit, and according t
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Rear View Monitor (RVM)
Description and operation Description Back view camera will activate when the backup light is ON with the ignition switch ON and the shift lever in the R position. This system is a supplemental system that shows behind the vehicle through the H/UNIT or the ECM (Reverse Display Room Mirror) mirror while backing-up.
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