Possible Cause

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

Engine mount control unit ACM SOL RLY line open
Engine mount control unit ACM RLY OUT line open
ACM control relay stuck off
ACM control relay line fuse blown
ACM control relay power supply line open
ACM control relay power supply line short to ground
ACM control relay driver line open
ACM control relay driver line short to ground
Engine mount control unit internal circuit failure