Refrigerant Pressure Switch Inspection

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.

Install the manifold gauge set.
Disconnect the refrigerant pressure switch connector.
Verify the high- and low-pressure side reading of manifold gauge.
Check for continuity between terminals of the refrigerant pressure switch.
- If not as specified, replace the refrigerant pressure switch.
  
  Fig 1: Refrigerant Pressure Switch Specifications - HI
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Refrigerant Pressure Switch Specifications - LO
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 3: Identifying Refrigerant Pressure Switch Circuit & Connector View
  Courtesy of MAZDA MOTORS CORP.