toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 3816 > < Component Tests and General Diagnostics|Page 3814
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When the engine speed is 3,700 rpm or less and the throttle valve opening angle is 60° or more, the ECM turns the vacuum switching valve (VSV)
ON and closes the IACV. At all other times, the VSV is OFF, so the IACV is open.

WIRING DIAGRAM 

INSPECTION PROCEDURE 

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