Initial Inspection and Diagnostic Overview
Air Conditioning (A/C) System Performance Test
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.
A/C System Pressure - Zone Classification with Aux A/C
