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Home >> Hyundai >> 2011 >> Accent GL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P0532: A/C Refrigerant Pressure Sensor A Circuit Low Input >> Inspection/Repair >> Component Inspection

Component Inspection

  1. A/C pressure sensor inspection
    1. Key "OFF" and connect the scan tool.
    2. Connect the probe to A/C pressure sensor signal and select the oscilloscope in the menu.
    3. Check the change of waveform with A/C "ON" and "OFF" after engine start.
      1. Specification:
        VOLTAGE SPECIFICATION CHART

        Pressure (psi) 14.7 100 200 300 470
        Voltage (V) 0.50 1.25 2.13 3.00 4.50
        Fig 1: Identifying A/C Pressure Sensor Connector Terminals
        G06881876Courtesy of HYUNDAI MOTOR CO.
    4. Is the measured waveform of A/C pressure sensor normal?

      YES 

      1. Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      1. Substitute with a known - good A/C pressure sensor and check for proper operation. If the problem is corrected, replace A/C pressure sensor and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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