Refrigerant Pressure Switch Inspection

1. Install the manifold gauge set. (See MANIFOLD GAUGE SET INSTALLATION .)
2. Disconnect the refrigerant pressure switch connector.
3. 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 Specification

Courtesy of MAZDA MOTORS CORP.

Fig 2: Medium Pressure Switch Operation

Courtesy of MAZDA MOTORS CORP.

Fig 3: Identifying Pressure Switch Connector Terminals

Courtesy of MAZDA MOTORS CORP.