Refrigerant System Performance Test
WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
- Warm up the engine and run it at a constant 1,500 rpm.
- Set the fan switch at 4th position.
- Turn the A/C switch on.
- Set the RECIRCULATE mode.
- Set the temperature control to MAX COLD.
- Set the VENT mode.
- Close all the doors and windows.
- Wait until the center ventilator temperature stabilizes.
- Measure the center ventilator temperature.
- Measure the ambient temperature.
- Verify that the intersection of the center ventilator temperature and the ambient temperature is in the shaded zone.
- If not as specified, troubleshoot the refrigerant system. (See TROUBLESHOOTING INDEX .)