Kia Rio: Air Conditioning System / A/C Pressure Transducer
Description and operation
| Description |
The A/C Pressure Transducer (APT) convert the pressure value of high pressure line into voltage value after measure it. By converted voltage value, engine ECU controls cooling fan by operating it high speed or low speed. Engine ECU stop the operation of compressor when the temperature of refrigerant line is so high or so low irregularly to optimize air conditioning system.
Repair procedures
| Inspection |
| 1. |
Measure the pressure of high pressure line by measuring voltage output between terminal “1” and “2”.
|
| 2. |
Inspect the voltage value to determine whether it is within specification.
|
| 3. |
If the measured voltage value is not specification, replace the A/C pressure transducer. |
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal. |
| 2. |
Recover the refrigerant with a recovery/charging station. |
| 3. |
Remove the A/C pressure transducer (A) disconnecting the A/C pressure transducer connector
|
Receiver-Drier
Repair procedures
Replacement
1.
Remove the condenser.
2.
Remove the cap (B) on the bottom of the condenser with L wrench (A).
...
Evaporator Temperature Sensor
Description and operation
Description
The evaporator temperature sensor will detect the evaporator core temperature
and interrupt compressor relay power in order to prevent evaporator ...
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