Refrigerant Pressure Switch Inspection

2004 Oldsmobile Bravada RWDSECTION Refrigerant Pressure Switch Inspection
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the SST  (gas charging set).
  2. Disconnect the refrigerant pressure switch connector.
  3. Verify the high-pressure side reading of the SST  (manifold gauge) and continuity between the refrigerant pressure switch terminals.
    • If there is any malfunction, replace the refrigerant pressure switch.
    Fig 1: Identifying Pressure Switch Operational Pressures (HI & LO)
    G00975607Courtesy of MAZDA MOTORS CORP.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.