Leak Detection Valve: Testing and Inspection

INSPECTION

1. REMOVE VSV

2. INSPECT VSV FOR OPEN CIRCUIT







Using an ohmmeter, check that there is continuity between the terminals.
If there is no continuity, replace the VSV.

3. INSPECT VSV FOR GROUND




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

4. INSPECT VSV OPERATION




a. Check that air does not flow from ports E to F.




b. Apply battery positive voltage across the terminals.
c. Check that air flows from ports E to F. If operation is not as specified, replace the VSV.

5. REINSTALL VSV