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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Intake / Exhaust System (1AR-FE) (Service Information) (Except Hybrid)) >> Vacuum Switching Valve (For ACIS) >> Inspection [12/2013 - ] >> Procedure

Inspection [12/2013 - ]: Procedure

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.
      GTY430126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Valve Body

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 37 to 44 Ω
      1 - Valve body Always 10 kΩ or higher
      2 - Valve body

      If the result is not as specified, replace the vacuum switching valve assembly (for ACIS).

    2. Check the vacuum switching valve assembly (for ACIS) operation.
      1. When vacuum is applied to the port (E), check that air is sucked into the filter.

        If the result is not as specified, replace the vacuum switching valve assembly (for ACIS).

        GTY432948Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Filter
        *b Port (E)
        *c Air
      2. Apply battery voltage across the terminals. When vacuum is applied to the port (F), check that air is sucked into the port (E).

        If the result is not as specified, replace the vacuum switching valve assembly (for ACIS).

        GTY436214Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Port (E)
        *b Port (F)
        *c Air
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