The Rear SAM (Signal Acquisition Module) is a component of the electrical system in Mercedes-Benz vehicles. It is responsible for receiving and distributing electrical signals throughout the vehicle, similar to the Front SAM.

The Rear SAM is typically located in the rear of the vehicle, near the trunk or the back of the car and it is connected to various electrical components such as the taillights, turn signals, backup lights and others depending on the model. It also receives signals from sensors such as the parking assist system, lane departure warning system and other advanced driver assistance systems (ADAS) to control the corresponding functions. The Rear SAM plays an important role in the proper functioning of the vehicle’s electrical systems and should be checked if any electrical issues arise.

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