Active Control Engine Mount System: Description: Location

Fig 1: Identifying Engine Mounting Insulator FR, Vacuum Switching Valve And Hose

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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.