Hyundai Santa Fe: Air conditioning System / In-car Sensor. Description and operation

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 to this signal, the control unit regulates in-car temperature to intended value.

Evaporator Temperature Sensor. Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the evaporator temperature sensor connector...

Photo Sensor. Description and operation

Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Limitations of the system

Reverse Parking Collision-Avoidance Assist may not assist braking or warn the driver even if there are pedestrians or objects under the following circumstances: Any non-factory equipment or accessory is installed Your vehicle is unstable due to an accident or other causes Bumper height or rear ultrasonic sensor installation has been modified Rear view camera or rear ultrasonic sensor(s) is damaged Rear view camera or the rear ultrasonic sensor(s) is stained with foreign material, such as snow, dirt, etc...

Hyundai Santa Fe (TM) 2019-2025 Service Manual: 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...