• The ambient air temperature must be at least 16?C(60?F)
• Do not induce additional air flow across the front of the vehicle during the test.

• 1. Park the vehicle inside or in the shade.
  2. Open the windows in order to ventilate the interior of the vehicle.
  3. If the A/C system was operating, allow the A/C system to equalize for about 2 minutes.
  4. Turn OFF the ignition.
  5. Install the gauges.
  6. Record ambient air temperature and humidity.
  7. Record the low and high side STATIC pressure readings.

 
Are both the low side and high side pressures within the specified value?

1. Close the vehicle doors and windows.
2. Open the drivers door window 12.7-15.2 cm(5-6in)
3. Select the following HVAC control settings:
   • The A/C is ON.
   • The coldest temperature setting
   • The maximum blower speed
   • Recirculation mode
   • The instrument panel(I/P) outlet ode
   • All (I/P) outlets are OPEN.

4. Install thermometers in the left and right center panel air outlets.
5.Apply the parking brake
6. Start the engine and warm to operating temperature.
7. Operate the A/C system for 5 minutes.
8.Record the following information:
???????? The panel outlet air temperatures
???????? The low-side pressure
???????? The high-side pressure
9. Compare the low and high side pressures and the panel output temperatures to the A/C Performance table below.
 
Does all the data recorded fall within the specified ranges of the A/C Performance table below?