Your car will no longer pick up speed like before when you press the gas pedal because the gears will not be able to make the precisely timed shifts that allow your car to speed up. For starters, you will notice a hesitation in the acceleration. Since the transmission control module plays a significant role in the automation processes in your Mercedes, when it suffers a fault, you’ll start to notice a few changes. ![]() Because the TCM is an electronic component, any wear in the wires through which voltage is transferred will directly affect the output of the TCM, negatively affecting your driving experience. Low or no voltage supply to the module makes it impossible for the transmission control module to correctly compute data, causing a myriad of problems.Īnother reason for transmission control failure is the usual wear and tear that most vehicle components suffer over time. This overload can also be due to water getting into the circuits, shorting them. ![]() The voltage overload can be on account of a short in the actuator circuit or in the solenoid. This means that it is prone to voltage overload. The transmission control module in your car is an electrical component. Why the Transmission Control Module Fails This is made possible when the Transmission Control Module, or TCM, receives and sends signals from its sensors to the lock-up clutch allowing it to adjust fuel injection into the engine for efficient fuel use. By enabling the switch between gears, the transmission control module not only ensures a smooth transition between gears, it also improves fuel economy. The data that the control module uses to enable automation of gears is provided by the engine control unit. In a nutshell, the transmission control module is responsible for the speed at which you can drive your car. It does this by collecting and processing data using sensors that then determine when and how you can change gears. While the engine is directly responsible for moving the car forward, the transmission control module is responsible for the different gears that make your Mercedes driving experience unique. There are many vehicle components that work together to make it possible for you to move from point A to point B. To get back to enjoying your driving experience, you’ll need to understand how the transmission control module works, why it fails and how you can fix it. ![]() Transmission control module failure causes problems in shifting gears, affecting your overall driving experience. This vehicle component is what controls the processes that regulate your car’s transmission’s gear shifting. Transmission control module failure is one of the most common problems that can occur in a Mercedes-Benz as it ages.
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