![]() ![]() The TCM uses these inputs to make decisions and activate actuators like shift solenoids, the TCC solenoid, EPS solenoid, and coast-timing solenoids. Transmission Module Control Function Of Transmission Module Control Responsibility Responsibility Responsibility of this module is to get information from sensors and runs certain actuator that engage gears. Pressure Sensors: The TCM uses these sensors to verify that the desired hydraulic circuit is under pressure. It's compared to the (VSS) vehicle speed sensor's signal to monitor performance. Transmission Control Module Add your vehicle Get an exact fit for your vehicle. OSS: The output shaft speed sensor informs the TCM of output shaft speed. TSS: The turbine shaft speed sensor informs the TCM of turbine shaft speed. The TCM uses this information to monitor the transmission's fluid temperature. TFT: The transmission fluid temperature sensor is located inside the transmission. At (WOT) wide-open throttle, the TCM downshifts. ![]() The TCM uses this information to control shift timing. In order to consistently transfer the right amount of energy from your engine to its wheels, a transmission control module (TCM) is needed. TPS: The throttle position sensor informs the PCM of the throttle angle. The TCM uses this information for shift timing, line pressure, and TCC application. It senses the mass of airflow in the air tube before it enters the intake manifold. The TCM on most BMW vehicles is located in the E-Box next to the ECM (DME). The TCM is programmed for maximum shift comfort and fuel economy. MAF: The mass airflow sensor informs the PCM of engine load. Electronic Transmission Control Transmission Control Module The TCM receives inputs, processes information and actuates the output elements to pro-vide optimal shift points. ![]() The TCM uses this input to delay the TCC application until the engine reaches operating temperature. The TCM uses this signal to control the TCC.ĮCT: The engine coolant temperature sensor monitors engine coolant temperature. Automatic Transmission Sensorsīrake switch: The brake switch signals the computer when the brakes are applied. Sensors detect conditions such as movement or pressure and convert them into an electrical signal for the TCM. The TCM also receives information from sensors shared over the CAN multiplex network with the PCM. The TCM has preset data to compare these inputs and make the appropriate decision. Transmission Control Module - TCM Allison for FreightlinerA61 - 12VP/Ns: A66-00577-099, 29556882Minor Cosmetic Blemishes From Storage Cracks On The Top. It receives input from various sensors to activate the various solenoids, the (TCC) torque converter clutch, control line pressure, and provide smooth shift timing. The (TCM) transmission control module can be a standalone controller or located in the (PCM) powertrain control module. ![]()
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