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VACUUM SWITCHING VALVE (for ACIS): Inspection

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 37 to 44 Ω
      1 - Body ground Always 1 MΩ or higher
      2 - Body ground

      If the result is not as specified, replace the air cleaner assembly.

      Fig 1: Inspecting Vacuum Switching Valve Assembly
      G06115197Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the vacuum switching valve operation.
      1. When vacuum is applied to port E, check that air is sucked into the filter.

        If the result is not as specified, replace the air cleaner assembly.

        Fig 2: Checking Vacuum Switching Valve Operation
        G06115198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Apply battery voltage across the terminals. When vacuum is applied to port F, check that air is sucked into port E.

        If the result is not as specified, replace the air cleaner assembly.

        Fig 3: Applying Battery Voltage Across Terminals
        G06115199Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002