WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: TAP Shift Switches, Stop Lamp Signal, TFT Sensor and TCC, Shift Solenoids
Courtesy of GENERAL MOTORS CORP.
Fig 2: VSS and AT ISS Sensors, Pressure Control Solenoid Valve, and TCC Release Switch Schematics