Leak Detection Valve: Testing and Inspection

INSPECTION

1. REMOVE VSV




2. INSPECT VSV
a. Inspect the VSV for open circuit.
Using an ohmmeter, measure the resistance between the terminals.

Resistance: 30 - 36 ohms @ 20 °C (68 °F)
If the resuot is not as specified, replace the VSV.




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




c. Inspect the VSV operation.
1. Check that air does not flow from ports E to F.




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.

3. REINSTALL VSV