Pressure Switch: Installation

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL PRESSURE SWITCH
1. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the pressure switch.
  Compressor oil: ND-OIL 8 or equivalent
2. Install the O-ring on the pressure switch.
3. Install the switch.
  Torque: 10.8 N*m (110 kgf*cm, 8 ft.*lbf)
  
  Fig 1: Identifying Pressure Switch Connector And O-Ring
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Connect the connector.
CHARGE REFRIGERANT (See REPLACEMENT )
WARM UP ENGINE (See REPLACEMENT )
CHECK FOR LEAKAGE OF REFRIGERANT (See REPLACEMENT )