Refrigerant Pressure Switch Inspection

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Install the manifold gauge set.
Disconnect the refrigerant pressure switch connector.
Verify the high-pressure side reading of the manifold gauge and continuity between the terminals of the refrigerant pressure switch.
- If not as specified, replace the refrigerant pressure switch.
  
  Fig 1: High & Low Pressure Switch Continuity Chart
  Courtesy of MAZDA MOTORS CORP.
Fig 2: Middle Pressure Switch Continuity Chart
Courtesy of MAZDA MOTORS CORP.

Fig 3: Identifying Refrigerant Pressure Switch Terminals Connection
Courtesy of MAZDA MOTORS CORP.