Valve Body: Description and Operation

Hydraulic Control Valve
The hydraulic control system consists of an oil pump, control valve bodies, clutches and connecting passages and pipes. When it is activated manually, or automatically by the electronic control system, it hydraulically controls the gearshifting mechanism.





A: CONSTRUCTION





B: VALVE BODY CONFIGURATION


C: SOLENOID AND SENSOR LOCATION





The control valve body is fitted with solenoid 1 (shift), solenoid 2 (shift), duty solenoid D (2-4 brake), 2-4 brake timing solenoid, low clutch timing solenoid, duty solenoid A (line pressure), duty solenoid B (lock-up) and an ATF temperature sensor.





D: STEEL BALL AND FILTER LOCATION








E: FUNCTION