Main Control Assembly
The hydraulic system of this transmission includes the fluid pump, a main control 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 Turbine Shaft Speed (TSS), Output Shaft Speed (OSS), Transmission Range (TR) and Transmission Fluid Temperature (TFT) sensors are all part of the main control assembly leadframe.
Main Control Assembly
| Item | Part Number | Description |
|---|---|---|
| 1 | 7A100 | Main control |
| 1 | 7G276 | Molded leadframe |
| 2 | - | Transmission control valve body (upper) |
| 3 | 7E195 | Transmission control valve check ball (8 required) |
| 4 | 7Z490 | Transmission control valve body separator plate |
| 5 | - | Transmission control valve body (lower) |
| 6 | - | Transmission control valve assembly |
| 7 | 7H187 | Transmission control filter assembly |
| 8 | 7B155 | Transmission fluid filter |
| 9 | - | Transmission solenoid damper valve assembly |
| 10 | 7G383 | Shift Solenoid A (SSA) |
| 11 | 7G383 | Shift Solenoid B (SSB) |
| 12 | 7G383 | Shift Solenoid C (SSC) |
| 13 | 7G383 | Line Pressure Control (LPC) solenoid |
| 14 | 7G383 | Shift Solenoid D (SSD) |
| 15 | 7G484 | Shift Solenoid E (SSE) |
| 16 | 7G383 | Torque Converter Clutch (TCC) solenoid |
| 17 | - | Forward (A) clutch latch valve assembly |
| 18 | - | Direct (B) clutch latch valve assembly |
| 19 | - | Solenoid regulator valve |
| 20 | - | Low/reverse (D1) clutch latch valve assembly |
| 21 | - | Drive enable valve |
| 22 | - | Solenoid multiplex valve |
| 23 | - | Forward (A) clutch regulator valve assembly |
| 24 | - | Overdrive (E) clutch regulator valve assembly |
| 25 | - | Overdrive (E) clutch latch valve assembly |
| 26 | - | Bypass clutch control regulator valve assembly |
| 27 | - | Main regulator valve assembly |
| 28 | - | Converter release regulator valve assembly |
| 29 | - | Lubrication control valve assembly |
| 30 | - | Manual valve assembly |
| 31 | - | Low/reverse (D2) clutch latch valve assembly |
| 32 | - | Direct (B) clutch regulator valve assembly |
| 33 | - | Low/reverse (D1) clutch regulator valve assembly |
| 34 | - | Intermediate (C) clutch regulator valve |