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Home >> Hyundai >> 2007 >> Accent GLS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0532 A/C Refrigerant Pressure Sensor "A" Circuit Low Input >> Component Inspection

Component Inspection

  1. A/C pressure sensor inspection
    1. Key "OFF" and connect the scantool.
    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 A/C "OFF" after engine start.
      A/C PRESSURE SENSOR SPECIFICATION

      Pressure (psi)  14.7 100 200 300 470
      Voltage (V)  0.5 1.25 2.13 3.00 4.50
      Fig 1: Identifying A/C Refrigerant Pressure Sensor Connectors
      G04801803Courtesy of HYUNDAI MOTOR CO.
    4. Is the measured waveform of A/C pressure sensor normal?

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

      NO  : --> 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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