Measure the pressure of high pressure line by measuring voltage output between terminals No. 1 and No. 2.
2.
Inspect the voltage value whether it is within the specified range.
Voltage = 0.00878835 * Pressure + 0.5[PSIA]
3.
If the measured voltage value is not within the specification, replace the A/C pressure transducer.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/charging station.
•
If PAG oil mixes into the POE oil of the system, dielectric
breakdown may occur due to decreased volumetric resistivity and the A/C
compressor may not work.
3.
Disconnect the A/C pressure transducer connector (A).
4.
Remove the A/C pressure transducer (B).
[Without Heat Pump]
[With Heat Pump]
•
Be careful not to bend the liquid & suction pipe.
5.
Install in the reverse order of removal.
•
When installing, replace it with a new O-ring (A).
Description
The A/C Pressure Transducer (APT) converts the pressure value
of high pressure line into voltage value after measuring it. Engine ECU
converts the voltage value to control the cooli ...
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 ...
Basic Service Symbols
There are five primary symbols used to complement
illustrations. These symbols indicate that particular materials should
be applied in each part during the sevice.
SymbolMeaningDo not reuse the part. Replace a new one.Apply engine oil or transmission oil to the part. ...