Tacoma Regular Cab 4WD V6-3.4L (5VZ-FE) (1997)
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.