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

I/P Harness Routing - Engine Compartment and Lower Right Side of I/P


Object Number: 1653856  Size: LF
(1)Body Control Module (BCM) C2
(2)Fuse Block I/P
(3)Relay Block I/P
(4)Splice Pack SP208
(5)Body Control Module (BCM) C1
Figure 2:

Data Link Connector


Object Number: 1863928  Size: LF
(1)Steering Column
(2)I/P Structure
(3)Data Link Connector (DLC)