Refrigerant Pressure Switch Inspection

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

Install the manifold gauge set. (See Manifold Gauge Set Installation .)
Disconnect the refrigerant pressure switch connector.
Verify the high-pressure side reading of the manifold gauge and continuity between the terminal B and C, and A and D is as shown.
- If there is any malfunction, replace the front cooler pipe No. 2.
  
  Fig 1: Verifying Continuity Between Terminal B And C In High And Low Pressure Switch
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Verifying Continuity Between Terminal A And D In Medium Pressure Switch
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 3: Connector Terminal Identification
  Courtesy of MAZDA MOTORS CORP.