Mazda CT-L1005, Руководство по обучению

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Diagnosis and Repair Basic Climate Control
Refrigerant Pressure Check
•
Mazda service literature provides a procedure for checking the refrigerant pressure in
the A/C system. The procedure involves making sure the engine is at operating
temperature, and taking pressure and temperature readings while the A/C is operating
(see the workshop manual for the vehicle specific procedure). The measurements are
then compared to values in a graph, such as the sample graph shown below.
L1005_055
Excerpt from Mazda3 Workshop Manual
X Ambient temperature Y Refrigerant pressure
1 High-pressure side 2 Low-pressure side
•
If the pressure readings are out of specification, the table on the following page provides
information about the possible cause. See the procedures in the workshop manual to
pinpoint the fault.
Curriculum Training 05-2