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

Theft Deterrent Control Module


Object Number: 1398767  Size: SH
(1)Theft Deterrent Control Module
(2)Ignition Key Housing
(3)Key Warning Switch
Figure 2:

I/P Trim Panel


Object Number: 314813  Size: SH
(1)I/P Trim Panel
(2)Daytime Runnung Lamps (DRL) Ambient Light Sensor Connector
(3)Sunload Sensor Connector
(4)Theft LED Connector