Vacuum Switching Valve (For Evap) Inspection

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Emission Control. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSPECT VACUUM SWITCHING VALVE (for EVAP)

Vacuum Switching Valve (For Evap) -- Inspection



1. INSPECT VACUUM SWITCHING VALVE (for EVAP)


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Emission Control.Emission Control System.Vacuum Switching Valve (For Evap)  Inspection
  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.



      Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Emission Control.Emission Control System.Vacuum Switching Valve (For Evap)  Inspection
    1. Check that air does not flow from port E to port F.



    2. Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Emission Control.Emission Control System.Vacuum Switching Valve (For Evap)  Inspection
    3. Apply battery voltage across terminals 1 and 2.

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