Q&A

 Master

The only way I can see to properly diagnose this problem is to monitor the A/C data at the powertrain control module (PCM) and the body control module (BCM) using a scan tool while the problem is occurring. Looking at the BCM and PCM data items will allow the technician to begin to isolate the cause of the fault. Due to the complexity of the A/C controls in your 2002 Chevrolet Malibu the scan tool is necessary to help determine the area of the A/C control system that is causing the fault. Once the area of the fault is determined more isolated diagnostic procedures and be used to find the exact cause to the problem.

It sounds like you have a low refrigerant problem. I would take it in and have it checked for a refrigerant leak. If there isn't one present, then your accumulator's desicant bag might be bad leading to too much moisture in the system. I would have the accumulator replaced and the recovery and recycle should be part of the labor. If your still experiencing problems have the electrical checked, but more than likely it's a refrigerant leak, which means you should have the accumulator replaced anyways when the problem is fixed at your a/c shop.