VSV For Pressure Switching Valve: Inspection

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

Fig 1: Inspecting VSV For Open Circuit

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Resistance: 

If there is no continuity, replace the VSV.

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

If there is continuity, replace the VSV.

Fig 2: Inspecting VSV For Ground

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1. Check that air does not flow from ports E to F.
   Fig 3: Checking Air Does Not Flow From Ports E To F

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2. Apply battery positive voltage across the terminals.
3. Check that air flows from ports E to F.
Fig 4: Checking Air Flows From Ports E To F
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If operation is not as specified, replace the VSV.

1. Disconnect the connector and 2 vacuum hoses.
2. Remove the bolt and VSV.

1. Disconnect the connector and 3 EVAP hoses from the VSV.
2. Remove the bolt and VSV.