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Home >> Buick >> 2001 >> Century V6-3.1L VIN J >> 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. This represents the decoded status of the four inputs from the transaxle Range Switch. The combination of transaxle inputs indicates the position of the transaxle manual valve.