Refrigerant System Performance Test: Rear
- Inspect the refrigerant pressure. (Refer to REFRIGERANT PRESSURE CHECK .)
- Place a dry-bulb thermometer in the passenger's side rear ventilator outlet.
Courtesy of MAZDA MOTORS CORP.
- Start the engine and warm it up.
- Prepare the vehicle as follows.
- Airflow volume: MAX HI
- A/C switch: ON
- Air intake port:
- Airflow temperature: MAX COLD
- Airflow mode: VENT
- Bonnet: Open
- All the doors and the trunk: Close
- All the windows: Close
- Engine speed: 1, 500
rpm
- Wait until the air conditioner output temperature stabilizes. (The A/C compressor repeatedly turns on and off at regular intervals.)
- Verify the air conditioner output temperature and the ambient temperature.
NOTE:
- Measure the air conditioner output temperature after approx. 10 min
have elapsed from engine start.
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- Verify that there is air conditioner output temperature readings within the shaded areas of the figure.