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Home >> Cadillac >> 2010 >> STS 3.6 V, AWD >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6L45/6L50/6L80/6L90 - Description And Operation >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Park - Engine Running >> Fluid Pressure Directed in Preparation for a Shift >> Manual Valve

Manual Valve

Mechanically controlled by the gear selector lever, the manual valve is in the Park (P) position and prevents line pressure from the pressure regulator valve from entering the reverse and drive circuits.