Vacuum Switching Valve Inspection

Measure the resistance of the VSV.

Standard resistance:

Tester Connection	Specified Condition
1 - 2	37 to 44 Ω at 20°C (68°F)
1 - Body Ground 2 - Body Ground	1 MΩ or higher

Check operation of the VSV.

1. Check that air does not flow from port E to the filter.
   If the result is not as specified, replace the VSV.
   





2. Apply battery voltage across terminals 1 and 2.
   

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