Avalon XLS V6-3.0L (1MZ-FE) (1998)
Variable Induction Control Solenoid: Description and Operation
CIRCUIT DESCRIPTION
This circuit opens and closes the IACV (Intake Air Control Valve) in response to the engine load in order to increase the intake efficiency (AC IS:
Acoustic Control Induction System).
When the engine speed is 3,700 rpm or less and the throttle valve opening angle is 600 or more, the ECM turns the VSV ON and closes the IACV
At all other times, the VSV is OFF, so the IACV is open.