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Home >> Isuzu >> 2006 >> Ascender 2WD V8-5.3L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> A/C System Performance Test

A/C System Performance Test



AIR CONDITIONING (A/C) SYSTEM PERFORMANCE TEST

TEST DESCRIPTION
The following test measures the A/C system under the following conditions:
- The current ambient air temperature
- The current ambient air humidity
- The high side pressure of the A/C system
- The low side pressure of the A/C system
- The temperature of the air being discharged into the passenger compartment

Step 1 - Step 2:




Step 3 - Step 8:




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 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 temperatures.




A/C Performance Table:




A/C Performance Table - With Rear A/C:




A/C PERFORMANCE TABLE