With Aux A/C and Engine Driven Cooling

Air Conditioning (A/C) System Performance Test (w/ Aux A/C and Engine Driven Cooling )

Step 1:

Step 2:

Step 3 - 8:

Performance Table:

Test Description
The numbers below refer to the step numbers on the diagnostic table.
1. This step determines if the A/C system has at least the minimum refrigerant charge required to operate the system without damage.
2. This step measures the performance of the A/C system.
3. This step is to allow for vehicle variations as well as high ambient air temperatures.