System Description

Fig 1: Electronic Controlled Engine Mount System Description Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

The ECM controls the engine mount operation corresponding to the engine speed and the vehicle speed. The control system has 2-step control [Soft/Hard]

ENGINE MOUNT CONTROL OPERATION - VEHICLE CONDITION

Vehicle condition	Engine mount control
Idle (With vehicle stopped)	Soft
Except above conditions	Hard