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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Automatic Transaxle - 4T65-E - Overhaul) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Overdrive Range, 4-3 Downshift - Torque Converter Clutch Not Applied (With Touch Activated Power) >> TCC Control (PWM) Solenoid Valve

TCC Control (PWM) Solenoid Valve

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As the throttle position changes, the throttle position sensor provides input to the PCM indicating throttle angle. The PCM then lowers the ON/OFF cycle time of the TCC control PWM solenoid valve, lowering TCC signal (PWM) fluid pressure.

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