toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Air Suction Vacuum Switching Valve|Page 1370 > < Air Suction Vacuum Switching Valve|Page 1368
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Air Injection Vacuum Control Solenoid Valve: Testing and Inspection
Vacuum Switching Valve

Fig. 23  Testing VSV Operation - Current Applied

Fig. 24  Testing VSV Operation - Current Removed

1.

Disconnect the vacuum switching valve and remove it from the vehicle.

2.

Connect the VSV terminals to battery current. Fig. 23

3.

Blow into pipe E and check that air flows out of pipe G.

4.

Disconnect the battery.

5.

Blow into pipe E and check that the air comes out of the air filter. Fig. 24

Fig. 25  Testing VSV For Short Circuit

Air Suction Vacuum Switching Valve|Page 1370 > < Air Suction Vacuum Switching Valve|Page 1368