Control Of Exhaust Damper (Only Certain Versions)
The Engine Control Module (ECM) determines how the exhaust damper is to be controlled and also takes care of control.
The default position of the dampers at idle is in the closed position. The dampers open during shifts and acceleration.
If an electrical fault occurs, the dampers cannot be controlled and remain in the same position.
If this happens, DTCs are stored in the Engine Control Module (ECM).
The Engine Control Module (ECM) regularly performs an initialization of the dampers when the ignition is switched on. Initialization is performed by the control module controlling the dampers to their mechanical end positions and registering relevant positions. Initialization is also performed if the control module detects that the damper motors have been disconnected.