Vacuum Switching Valve On-Vehicle Inspection


  1. INSPECT VACUUM SWITCHING VALVE (for Engine Mounting)

Vacuum Switching Valve -- On-Vehicle Inspection



1. INSPECT VACUUM SWITCHING VALVE (for Engine Mounting)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System.Vacuum Switching Valve On-Vehicle Inspection

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		20°C (68°F)
    		37 to 44 Ω
    1 - Body ground
    2 - Body ground
    		20°C (68°F)
    		1 MΩ or higher
    Text in Illustration
    *a
    		Component without harness connected
    (Vacuum Switching Valve (for Engine Mounting))
    If the result is not as specified, replace the vacuum switching valve.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System.Vacuum Switching Valve On-Vehicle Inspection

  1. Check operation of the vacuum switching valve.

    1. When a vacuum of 67 kPa (500 mmHg, 19.7 in.Hg) is applied to port F, check that air flows from port E to the filter.

      Text in Illustration
      *1
      		Port E
      *2
      		Port F
      *3
      		Vacuum
      *4
      		Air
      *5
      		Filter


      2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System.Vacuum Switching Valve On-Vehicle Inspection

    2. Apply battery voltage across terminals 1 and 2.

      Text in Illustration
      *1
      		Port E
      *2
      		Port F
      *3
      		Air

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