## Automatic Transmission

#### System Description (cont'd)

14-51

Main Valve Body

The main valve body contains the manual valve, the modulator valve, the 1-2 shift valve, the 2nd orifice control valve, the servo control valve, the CPB (Clutch Pressure Back-up) valve, the relief valve and the ATF pump gears.

The primary function of the main valve body is to switch fluid pressure on and off and to control hydraulic pressure going to the hydraulic control system.

1. MODULATOR VALVE
2. CPB VALVE
3. 2ND ORIFICE CONTROL VALVE
4. 1-2 SHIFT VALVE
5. MANUAL VALVE
6. SERVO CONTROL VALVE
7. MAIN VALVE BODY
8. RELIEF VALVE

Regulator Valve Body

The regulator valve body contains the regulator valve, the lock-up control valve, the torque converter check valve and the cooler relief valve.

1. REGULATOR VALVE
2. REGULATOR VALVE BODY
3. TORQUE CONVERTER CHECK VALVE
4. LOCK-UP CONTROL VALVE
5. COOLER RELIEF VALVE