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

I/P Harness Routing - Left Side of the I/P


Object Number: 883616  Size: MF
(1)C221
(2)Data Link Connector (DLC)
(3)Stop Lamp Switch Connector
Figure 2:

I/P Harness Routing - Lower Left Side of the Passenger Compartment


Object Number: 883613  Size: LF
(1)Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(2)C318
(3)G301
(4)G302
(5)G303
(6)SP200
(7)C222 (YF7)
(8)Seat Belt Pretentioner Connector - LF (Light Duty)
(9)C300 (Light Duty)
(10)Fuse Block Body - C5 (YF7)
(11)Fuse Block Body - C3