Main Control (Mechatronic) Assembly: Notes

The hydraulic system of this transmission includes the fluid pump, a main control, or mechatronic assembly and fluid passages in the transmission case and center support to apply the clutches.

The main control assembly has an upper valve body assembly, a separator plate and a lower valve body assembly. The lower valve body assembly has 7 solenoids to control the valves in the main control.

The Transmission Control Module (TCM) is part of the mechatronic assembly and is bolted to it. The Turbine Shaft Speed (TSS) sensor, Output Shaft Speed (OSS) sensor, Transmission Range (TR) sensor and the Transmission Fluid Temperature (TFT) sensor are all part of the TCM  .