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Cooling Insufficient - A/C System

TEST DESCRIPTION

Steps 1-2:




Steps 3-7:




Steps 8-9:




The number(s) below refer to the step number(s) on the diagnostic table.
1. This step determines if there is enough refrigerant in the A/C system to operate it without damage.
2. This step is to determine if the A/C compressor is operating.
3. This step measures the performance of the A/C system.
4. This step is to allow for vehicle variations as well as high ambient temperatures.