Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.