Refrigerant Pressure Switch Inspection

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Connect the manifold gauge.
Verify the high-pressure side reading.
Disconnect the refrigerant pressure switch connector.
Verify continuity between the terminals of the refrigerant pressure switch.
- If the continuity is not normal, replace the refrigerant pressure switch.
Fig 1: Measuring High-Pressure Side Reading (High & Low Pressure)
Courtesy of MAZDA MOTORS CORP.

Fig 2: Measuring High-Pressure Side Reading (Medium Pressure)
Courtesy of MAZDA MOTORS CORP.

Fig 3: Checking Continuity Between Terminals Of Refrigerant Pressure Switch
Courtesy of MAZDA MOTORS CORP.