toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Vacuum Switching Valve (VSV) for EVAP <--> [Canister Purge Solenoid]|Specifications|Page 1762 > < Vacuum Switching Valve (VSV) for EVAP <--> [Canister Purge Solenoid]|Specifications|Page 1760
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Vacuum Switching Valve (VSV) for EVAP: Testing and Inspection

1. REMOVE AIR CLEANER CAP ASSEMBLY
2. REMOVE VSV
3. INSPECT VSV

A. Inspect VSV for open circuit

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

Resistance: At 20°C (68°F): 30 - 34 ohms 

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If there is no continuity, replace the VSV.

B. Inspect VSV for ground

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

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If there is continuity, replace the VSV.

C. Inspect VSV operation

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

NOTICE: Never apply more than 60 kPa (0.61 kgf/sq.cm, 8.7 psi) of pressure compressed air to the VSV.

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Apply battery positive voltage across the terminals.

Vacuum Switching Valve (VSV) for EVAP <--> [Canister Purge Solenoid]|Specifications|Page 1762 > < Vacuum Switching Valve (VSV) for EVAP <--> [Canister Purge Solenoid]|Specifications|Page 1760