
Transmission control unit - Wikipedia
A transmission control unit (TCU), also known as a transmission control module (TCM), or a gearbox control unit (GCU), is a type of automotive ECU that is used to control electronic automatic …
Understanding The Transmission Control Module - AutoZone
The Transmission Control Module or TCM is an electronic control unit responsible for managing and controlling the transmission’s operations. Boiled down, the TCM acts as the brain behind your …
8 Signs of a Failing TCM (And Replacement Cost in 2026)
Jun 4, 2025 · Located somewhere in your vehicle’s interior or engine bay (depending on your car’s make and model), the TCM is separate from your engine’s main computer (ECU/ECM or PCM), though …
What Is a TCU? Transmission Control Unit (TCU) Explained
Oct 5, 2020 · A part of the Electronic Control Unit (ECU), the Transmission Control Unit covers everything related to the transmission of a vehicle. It ensures smooth gear shifts and optimal fuel …
Transmission Control Module Repair & Reman Services
Contact us today to see how quickly we can have your Transmission Control Module (TCM) fixed or remanufactured and back in your car.
Transmission Control Unit (TCU) Explained - ECU Testing
The transmission control unit (TCU) is an automotive electronic control unit that calculates how and when to change gears in your automatic vehicle, whilst maintaining optimum performance, fuel …
What Is a Transmission Control Unit (TCU) and What Does It Do?
Jul 2, 2025 · What is a Transmission Control Unit? A Transmission Control Unit is an electronic device used to control modern automatic transmissions. It processes signals from various sensors and …
Everything You Need to Know About Transmission Control Modules
The Transmission Control Module (TCM) is a vital component in modern vehicles that controls the transmission's operation. It is essentially the brain behind the transmission, receiving signals from …
Transmission control unit - Bosch Mobility
By controlling the electrohydraulic or electromechanic transmission actuators, the transmission control unit makes comfortable and dynamic driving performance possible. It also performs a diagnosis of …
TCU transmission control unit explained? - Mechanical Education
A TCU, or Transmission Control Unit, is an electronic component in a vehicle that manages and regulates the operation of the transmission system. It plays a crucial role in optimizing gear shifts and …