Transmission Control Module (TCM) and Main Control Valve Body
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The transmission control module (TCM) and main control valve body is a combination of hydraulic and electronic control units. Both these modules are installed in the transmission, in the fluid pan.
This technical principle has the following advantages:
- Minimum tolerances (TCM is mated to solenoids)
- Better coordination of gear shifts
- Increased refinement
- Optimized shift quality
- Good reliability, since the number of plug connections and interfaces is reduced.
| Item Number | Description |
|---|---|
| 1 | TCM |
| 2 | Output speed sensor |
| 3 | Transmission fluid temperature sensor |
| 4 | Position switch |
| 5 | Pressure regulator 6 |
| 6 | Solenoid valve |
| 7 | Pressure regulator 5 |
| 8 | Pressure regulator 4 |
| 9 | Pressure regulator 3 |
| 10 | Pressure regulator 2 |
| 11 | Pressure regulator 1 |
| 12 | Discharge port |
| 13 | Suction port |
| 14 | Turbine speed sensor |
| 15 | Main control valve body |