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Home >> Toyota >> 2009 >> Highlander Limited, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FE) - System And Component Testing, Removal, Inspection And Installation >> Active Control Engine Mount System >> Description
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Active Control Engine Mount System: Description

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Fig 1: Identifying Front Engine Mounting Insurator, Vacuum Switching Valve, Hose B And A
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The Active Control Engine Mount (ACM) system decreases engine vibration at engine idling using the ACM VSV. The VSV is controlled by a pulse signal transmitted to the VSV from the ECM. The frequency of this pulse signal is matched to the engine speed to decrease engine vibration.