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Home >> Buick >> 2001 >> Regal V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> TFP Switch
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TFP Switch

Scan Tool Displays-PARK/NEUTRAL, REVERSE, DRIVE 4, DRIVE 3, DRIVE 2, or LOW. The Transmission Fluid Pressure (TFP) switch represents the decoded status of the four inputs from the internal transaxle fluid pressure switch assembly. The combination of these inputs indicates the position of the transaxle manual valve.
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