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Question:

Huatai Santa Fe p0532 air conditioning pressure switch input voltage is low. The How to solve

Huatai Santa Fe p0532 air conditioning pressure switch input voltage is low. The How to solve

Answer:

Hello, fault: P0532 air conditioning refrigerant pressure sensor A circuit is low The effect of the air conditioning refrigerant pressure sensor is to transmit the air conditioning refrigerant pressure to the electronic control unit (ECU) in the form of an electrical signal as a basis for controlling the cooling fan switch and the compressor relay. If the electronic control unit detects that the air conditioning pressure sensor signal circuit voltage is below the minimum value of the calibration, the fault code will appear.
Pressure switch principle: When the pressure inside the system is higher or lower than the rated safety pressure, the disc in the sensor moves instantaneously, through the connecting rod to push the switch connector on or off, when the pressure drops to or rise the rated recovery value, The disc is instantly reset, the switch is automatically reset, or simply when the measured pressure exceeds the rated value, the free end of the elastic element displacement, directly or after comparison to push the switching element, change the switching element on and off state, to control The purpose of the measured pressure.
Because: 1, the supply voltage is insufficient, use a multimeter to check the supply voltage. 2, the pressure switch input bad contact, re-wiring. 3, the pressure switch is damaged, replace the pressure switch. 4, the pressure switch capacitor is damaged, replace the capacitor.

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