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

Floor Shifter Harness Connections


Object Number: 401101  Size: MF
(1)Automatic Transmission Controller and Connector (Except Envoy)
(2)Automatic Transmission Preference Switch Connector
(3)Splice S336
(4)Floor Shifter
(5)Automatic Transmission Indicator Lamp
(6)Splice S335
Figure 2:

Park/Neutral Position and Backup Lamp Switch (w/ A/T) (4.3L Shown, 2.2L Similar)


Object Number: 627280  Size: LF
(1)C104
(2)Park/Neutral Position and Backup Lamp Switch Connector C2
(3)Park/Neutral Position and Backup Lamp Switch Connector C1
(4)Oxygen Sensor Bank 1, Sensor 1
Figure 3:

Steering Column Components


Object Number: 357152  Size: LF
(1)Shift Lever Assembly
(2)Upper Shroud
(3)Inflatable Restraint Steering Wheel Module Coil
(4)C214
(5)Multifunction Switch (T/SIG, HDLP/DM, WSW)
(6)Park Lock Solenoid Connector
(7)Automatic Transmission Shift Lock Control Solenoid
(8)C211
(9)Transmission Shift Lever
(10)Passlockā„¢ Sensor Connector
(11)Ignition and Start Switch and Ignition Key Alarm Switch