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Vacuum Switching Valve: Inspection

  1. INSPECT PURGE VSV 
    1. Measure the resistance of the purge VSV.

      Standard resistance 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      1 - 2 26 to 30 Ω at 20°C (68°F)
      1 - Body ground 2 - Body ground 10 MΩ or higher

      If the result is not as specified, replace the purge VSV.

      Fig 1: Measuring Resistance Of Purge VSV
      G05289232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the operation of the purge VSV.
      1. Check that air does not flow from port E to port F.
        Fig 2: Locating Purge VSV
        G05289233Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Apply battery voltage across the terminals.
      3. Check that air flows from port E to port F. If the result is not as specified, replace the purge VSV.
        Fig 3: Checking Air Flows From Port E To Port F
        G05289234Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002