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

LH Side of IP, Above Steering Column


Object Number: 590123  Size: MF
(1)I/P Harness
(2)Instrument Cluster Connector C1
(3)Instrument Cluster
(4)Instrument Cluster Connector C2
Figure 2:

Steering Column


Object Number: 608736  Size: MF
(1)Ignition Key Alarm Switch
(2)Lock Module Assembly
Figure 3:

Overhead Console


Object Number: 622322  Size: LF
(1)Driver Information Display (DID)
(2)Interior Lamp and Multi-function Switch