VSV For Pressure Switching Valve: Inspection

1. Inspect the VSV for open circuit.

   Using an ohmmeter, check that there is continuity between the terminals.

   Resistance: 30 - 36 Ω at 20°C (68°F) 

   If there is no continuity, replace the VSV.

   Fig 1: Checking Continuity Between Terminals Using An Ohmmeter

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2. Inspect the VSV for ground.

   Using an ohmmeter, check that there is no continuity between each terminal and the body.

   If there is no continuity, replace the VSV.

   Fig 2: Checking Continuity Between Terminal And Body Using An Ohmmeter

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Inspect the VSV operation
   1. Check that air does not flow from ports E to F.
      Fig 3: Checking Air Flow From Ports E To F

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Apply battery positive voltage to the terminals.
   3. Check that air flows from ports E to F.

If the operation is not as specified, replace the VSV.