Component Location
General Description

A/C pressure transducer consists of piezoelectric element and it detects A/C refrigerant pressure. Piezoeletric type is more advantageous to obtain linear data of pressure than existing switch type. Thus, optimum control of A/C compressor and fan is realized and improved fuel efficiency follows with it.

DTC Description

P0532 is set when the voltage below 0.18V - minimum voltage of A/C pressure transducer signal - is detected for more than 0.6 sec.. This code is due to open in power circuit or short to ground in signal circuit of A/C pressure transducer.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Voltage monitoring

● A/C pressure transducer circuit

● A/C pressure transducer component

Enable Conditions

● IG KEY "ON"

Threshold Value

● When output voltage is below the minimum value (below 0.18V)

Diagnostic Time

● 0.6 sec.

Fail Safe

Fuel Cut

NO

● A/C pressure fixed at 100 hPa

EGR Off

NO

Fuel Limit

NO

MIL

OFF

Specification
Schematic Diagram
note
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Signal Waveform
note

Output signal(voltage) changes in accordance with the amount of refrigerant and the change of weather. Check if normal pressure change occurs in accordance with aircon compressor operation at normal pressure range shown in "Specification".

Яндекс.Метрика