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Home >> Chevrolet >> 2009 >> Impala LTZ >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4T65-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Description And Operation >> Automatic Transmission Hydraulic Diagrams >> Overdrive Range, Third Gear - Torque Converter Clutch Not Applied >> Transmission Fluid Pressure (TFP) Manual Valve Position Switch

Transmission Fluid Pressure (TFP) Manual Valve Position Switch

Release fluid pressure routed to the TFP manual valve position switch signals the PCM that the TCC is released.