Refrigerant Pressure Check

Install the manifold gauge set. (See MANIFOLD GAUGE SET CONNECTION .)
Start the engine and warm it up.
Prepare the vehicle as follows.
- Airflow volume: MAX HI
- A/C switch: ON
- Air intake port: REC
- 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
Verify the pressure indicated on the manifold gauge and ambient temperature.
NOTE:
- Measure the refrigerant pressure after approx. 10 min have elapsed from engine start.
Verify that there are high/low pressure value readings within the shaded areas of the figure.
SKYACTIV-G [VIN M] (HFC-134a)

Courtesy of MAZDA MOTORS CORP.

SKYACTIV-G [VIN Y] (HFC-134a)

Courtesy of MAZDA MOTORS CORP.

SKYACTIV-G [VIN M] (HFO-1234yf)

Courtesy of MAZDA MOTORS CORP.

SKYACTIV-G [VIN Y] (HFO-1234yf)

Courtesy of MAZDA MOTORS CORP.

If not as verified, inspect the refrigerant system according to the troubleshooting chart. (See FOREWORD [FULL-AUTO AIR CONDITIONER] .)