Refrigerant Pressure Switch Inspection

WARNING: This page is about a different car, the 2005 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 terminals B and C, and A and D is as shown.
- If there is any malfunction, replace the front cooler pipe No.2.
Fig 1: High And Low Pressure Switch Continuity
Courtesy of MAZDA MOTORS CORP.

Fig 2: Medium Pressure Switch Continuity
Courtesy of MAZDA MOTORS CORP.

Fig 3: Inspecting Pressure Switch Connector Terminals
Courtesy of MAZDA MOTORS CORP.