LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Air Conditioning) >> Pressure Switch >> On-Vehicle Inspection

On-Vehicle Inspection

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT PRESSURE SWITCH 
    1. Install the manifold gauge set.
    2. Disconnect the connector from the pressure sensor.
    3. Connect the three 1.5 V dry cell batteries' positive (+) lead to terminal 3, and the negative (-) lead to terminal 1.
    4. Connect the voltmeter's positive (+) lead to terminal 2, and the negative (-) lead to terminal 1.
    5. Measure the voltage according to the value(s) in the table below.
      Fig 1: Identifying Pressure Sensor Terminals With Refrigerant Pressure Graph
      G05774802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage 

      PRESSURE SENSOR - TESTER CONNECTOR SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      2 - 1 Refrigerant pressure: 0.39 to 3 187 MPa (57 to 463 psi) 1.0 to 4.8 V

      If result is not as specified, replace the pressure switch.

scientia non olet · About LEMON Manuals