Sequoia 4WD V8-4.7L (2UZ-FE) (2006)
Variable Induction Check Valve: Testing and Inspection
INSPECTION
1. INSPECT INTAKE AIR CONTROL VALVE
a. With 39.9 kPa (300 mmHg, 11.8 in.Hg) of vacuum applied to the actuator, check that the actuator rod moves.
b. One minute after applying the vacuum in the step above, check that the actuator rod does not return. If the operation is not as specified, replace
the intake manifold.
2. INSPECT VACUUM SWITCHING VALVE ASSEMBLY
a. Using an ohmmeter, check that there is continuity between each terminal.
Resistance: 33 to 39 ohms at 20 degree C (68 degree F)
If there is no continuity, replace the VSV.
b. Using an ohmmeter, check that there is no continuity between each terminal and the body. If there is continuity, replace the VSV.