DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Intake / Exhaust System (2GR-FKS) - Service Information >> VACUUM SWITCHING VALVE (for ACIS) >> Inspection [12/2019 - 10/2022] >> Procedure

Inspection [12/2019 - 10/2022]: Procedure

  1. INSPECT NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY618816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Valve Body
      *b Component without harness connected
      (No. 1 Vacuum Switching Valve Assembly (for ACIS))

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 33 to 39 Ω
      1 - No. 1 vacuum switching valve assembly (for ACIS) body ground Always 10 kΩ or higher
      2 - No. 1 vacuum switching valve assembly (for ACIS) body ground

      If the result is not as specified, replace the No. 1 vacuum switching valve assembly (for ACIS).

    2. Check the No. 1 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 No. 1 vacuum switching valve assembly (for ACIS).

        GTY617936Courtesy 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 No. 1 vacuum switching valve assembly (for ACIS).

        GTY626691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Port (E)
        *b Port (F)
        *c Air
Diesel-Data.com