toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Vacuum Delay Valve, EVAP > < Leak Detection Solenoid, Evaporative System|Description and Operation
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Leak Detection Solenoid: Testing and Inspection

1. REMOVE VSV
2. INSPECT VSV

a. Inspect the VSV for open circuit.

Using an ohmmeter, check that there is continuity between the terminals.
Resistance: 33 - 39 Ohms at 20° C (68° F)
If there is no continuity, replace the VSV.

b. Inspect the 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.

c. Inspect the VSV operation.

1. Check that air flows from ports E to G.

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

3. REINSTALL VSV

Vacuum Delay Valve, EVAP > < Leak Detection Solenoid, Evaporative System|Description and Operation