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2. Transmission control unit - Wikipedia

   en.wikipedia.org/wiki/Transmission_Control_Unit

   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 transmissions. Similar systems are used in conjunction with various semi-automatic transmissions, purely for clutch automation and actuation.

3. Autostick - Wikipedia

   en.wikipedia.org/wiki/Autostick

   The service manual explains that Autostick signaling is multiplexed on a single wire. The transmission control module outputs a 5v signal to the handle and monitors it for voltage drop The voltage ranges 0.3-1.6,1.6-2.8, 2.8-3.8, and 3.8-4.8 representing down, up, overdrive lockout, and all open respectively.

4. Transmission solenoid - Wikipedia

   en.wikipedia.org/wiki/Transmission_solenoid

   A transmission solenoid or cylinoid is an electro-hydraulic valve that controls fluid flow into and throughout an automatic transmission. Solenoids can be normally open or normally closed. They operate via a voltage or current supplied by the transmission computer or controller.

5. Powertrain control module - Wikipedia

   en.wikipedia.org/wiki/Powertrain_control_module

   A power-train control module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). On some cars, such as many Chryslers, there are multiple computers: the PCM, the TCU, and the Body Control ...

6. Electronic control unit - Wikipedia

   en.wikipedia.org/wiki/Electronic_control_unit

   An electronic control unit (ECU), also known as an electronic control module (ECM), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle.

7. Semi-automatic transmission - Wikipedia

   en.wikipedia.org/wiki/Semi-automatic_transmission

   The 1941 Chrysler M4 Vacamatic transmission was a two-speed manual transmission with an integral underdrive unit, a traditional manual clutch, and a fluid coupling between the engine and the clutch. [51] [52] [53] The two-speed transmission had "high" and "low" ranges, and the clutch was used when the driver wanted to switch between ranges. For ...