Refrigerant Pressure Switch Inspection

WARNING: This page is about a different car, the 2002 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 not as specified, replace the front cooler pipe No. 2.

Fig 1: High & Low Pressure Switch Continuity Check

Courtesy of MAZDA MOTORS CORP.

Fig 2: Middle Pressure Switch Continuity Check

Courtesy of MAZDA MOTORS CORP.

Fig 3: Identifying Pressure Switch Terminals & Circuit

Courtesy of MAZDA MOTORS CORP.