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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (HVAC - Automatic) >> Diagnostic Information and Procedures >> DTC P0532 or P0533 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the appropriate Air Conditioning Service Center, ignition ON
  2. Verify the high side pressure on the gauge is within 10% of the scan tool A/C High Side Pressure Sensor parameter.
    • If the A/C High Side Pressure Sensor parameter is not within 10% 

      Refer to Circuit/System Testing.

    • Go to next step: If the A/C High Side Pressure Sensor parameter is within 10% 
  3. Verify the A/C High Side Pressure Sensor parameter is between 269-2929 kPa (39-425 PSI).
    • Go to next step: If the reading is between 269-2929 kPa (39-425 PSI) 
  4. All OK
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