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) 2019-2024 Service Manual: Engine Control Module (ECM). Schematic diagrams

ECM Terminal and Input/Output signal ECM Terminal Function Connector A Pin No Description Connected to 1 Power ground Chassis Ground 2 - - 3 - - 4 - - 5 - - 6 Fuel Sender Signal Fuel Sender 7 - - 8 - - 9 - - 10 - - 11 - - 12 - - 13 - - 14 - - 15 Stop Lamp Signal Stop Lamp 16 Brake Test Switch Brake Switch 17 18 - 19 - 20 Output Speed (Supply) ATM Solenoid Valve (Otput Speed) 21 Input Speed (Supply) ATM Solenoid Valve (Input Speed) 22 - - 23 - - 24 - - 25 - - 26 - - 27 [A/T] SOL...

Hyundai Santa Fe (TM) 2019-2024 Service Manual: Troubleshooting

Failure Diagnosis 1. In principle, ESP and TCS controls are prohibited in case of ABS failure. 2. When ESP or TCS fails, only the failed system control is prohibited. 3...