Grand Cherokee 2WD V8-5.7L VIN 2 (2005)
Signals from the Transmission Control Module (TCM) are converted into hydraulic functions in the electric valve control unit (7). The RPM sensors
(1, 12), starter interlock contact (9), and transmission oil temperature sensor (8) of the electric valve control unit (7) supply the TCM with input
signals. The solenoid valves are controlled by the TCM and trigger the hydraulic functions.
HYDRAULIC CONTROL UNIT
Working Pressure Regulating Valve (Line Pressure or Operating Pressure)
The working pressure (p-A) is regulated at the working pressure regulating valve (4) in relation to load (modulating pressure, p-Mod) and gear (K1 or
K2 pressure) (1). The spring in the working pressure regulating valve sets a minimum pressure level (basic pressure).
Torque Converter Lockup Clutch Regulating Valve
