Vacuum Switching Valve

COMPONENTS

2007 ENGINE Emission Control - Sequoia

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Fig. 49: Identifying Vacuum Switching Valve Components With Specified Torque Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION

1. REMOVE VACUUM SWITCHING VALVE

2. INSPECT VACUUM SWITCHING VALVE

a. Inspect the VSV for open circuit.

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

Resistance: 30 to 34 ohms at 20°C (68°F) If there is no continuity, replace the VSV.

Ohmmeter

Vacuum Switching Valve
Fig. 50: Checking Vacuum Switching Valve Continuity Between Terminals Using Ohmmeter Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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.

2007 ENGINE Emission Control - Sequoia

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