Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: ACIS Control Circuit. Active Control Engine Mount System. Basic Inspection
ACIS Control Circuit DESCRIPTION ACIS (Acoustic Control Induction System) controls the opening and closing the intake air control valve sub-assembly built into the intake air surge tank assembly to increase the intake efficiency according to the engine load. When the engine speed is between 0 and 43 ...
