FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Hydraulic Control

HYDRAULIC CONTROL
Solenoid Valves
The function of the three solenoid valves are to control the flow of transmission oil to the various transmission components. Three solenoid valves are located within the transmission assembly, and are closed when not energized. Valves are ground switched, the unswitched side being connected via an internal Transmission Control Module (TCM) relay to battery voltage.

Pressure Regulators
The function of the five pressure regulators is to modulate the oil pressure to the various transmission components. The regulators are pulse width modulated by the TCM, switching to ground potential. The other side of the regulators being connected, via an internal TCM relay, to battery voltage. The regulator is closed when not energized by the TCM.