Hyundai Santa Fe (TM): Air conditioning System / Evaporator Temperature Sensor. Repair procedures
| Inspection |
| 1. |
Turn the ignition switch OFF.
|
| 2. |
Disconnect the evaporator temperature sensor connector.
|
| 3. |
Measure resistance between terminal "+" and "-" of the evaporator temperature
sensor.
Specification
|
| 4. |
Connect the evaporator temperature sensor connector.
|
| 5. |
Run the engine and turn the A/C switch ON, then measure the voltage
between the terminals of the harness connector.
|
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal.
|
| 2. |
Remove the evaporator core.
(Refer to Heater - "Evaporator Core")
|
| 3. |
Separate the evaporator temperature sensor (A) from the evaporator core.
|
| 4. |
Install in the reverse order of removal.
|
Description The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling.
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.
Other information:
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Compressor oil. Repair procedures
Oil Specification 1. The R-134a or R-1234yf system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2.
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Ambient Temperature Sensor. Repair procedures
Inspection 1. Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature. 1. Ambient Sensor (+) 2.
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