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# VACUUM SWITCHING VALVE (for Unleaded Gasoline Specification Vehicle) > INSPECTION

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1. INSPECT VACUUM SWITCHING VALVE (for EVAP)

1. Measure the resistance of the VSV.

   Standard resistance:

     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 VSV.

1. Check operation of the VSV.

   1. Check that air does not flow from port E to port F.

   2. Apply battery voltage across terminals 1 and 2.

   3. Check that air flows from port E to port F.
      If the result is not as specified, replace the VSV.