toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Leak Detection Solenoid, Evaporative System|Testing and Inspection|Page 3135 > < Evaporative Vapor Pressure Sensor|Testing and Inspection
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Leak Detection Solenoid: Testing and Inspection

VACUUM SWITCHING VALVE (VSV) FOR VAPOR PRESSURE SENSOR INSPECTION 

1. REMOVE VSV

(a) Disconnect the connector and 3 EVAP hoses from the VSV.
(b) Remove the bolt and VSV.

2. INSPECT VSV

A. Inspect VSV for open circuit

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

Resistance: At 20°C (68°F): 37 - 44 ohm 

If there is no continuity, replace the VSV

B. 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.

C. Inspect VSV operation

(a) Check that air flows from ports E to P and does not flow from ports E to F.
(b) Apply battery voltage across the terminals.

Leak Detection Solenoid, Evaporative System|Testing and Inspection|Page 3135 > < Evaporative Vapor Pressure Sensor|Testing and Inspection