GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Automatic Transmission Controller


Object Number: 406310  Size: LF
(1)Automatic Transmission Select Lever
(2)Park Brake Warning Switch Connector
(3)Brake Transmission Shift Interlock (BTSI) Connector C1
(4)Automatic Transmission Indicator Lamp Connector C2
(5)Park Brake Lever
(6)Body Wiring Harness
Figure 2:

Instrument Panel, RH


Object Number: 406296  Size: LF
(1)Body Relay Block
(2)Clutch Pedal Position Switch Connector
(3)TCC/Stop Lamp Switch Connector
(4)C211
(5)C201
(6)Data Link Connector (DLC)
(7)RH Kick Panel