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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Intake System / Exhaust System (3UR-FBE) (Service Information)) >> Vacuum Switching Valve >> On-Vehicle Inspection [08/2015 - 08/2018] >> Procedure

On-Vehicle Inspection [08/2015 - 08/2018]: Procedure

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  1. REMOVE V-BANK COVER SUB-ASSEMBLY 

    See step  2

  2. INSPECT VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) 
    1. Disconnect the vacuum switching valve connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      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 vacuum switching valve assembly.

      GTY540598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check the vacuum switching valve operation.
      1. When applying a vacuum to port E, check that air is sucked into the filter.
        GTY142069Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        If the result is not as specified, replace the vacuum switching valve assembly.

      2. Apply voltage across the terminals.
        GTY556848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. When applying a vacuum to port F, check that air is sucked into port E.

        If the result is not as specified, replace the vacuum switching valve assembly.

    4. Connect the vacuum switching valve connector.
  3. INSTALL V-BANK COVER SUB-ASSEMBLY 

    See step  16