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

Behind Right Front Kick Panel


Object Number: 1554771  Size: LF
(1)Body Control Module (BCM)
(2)Body Control Module (BCM) C1 (Body Harness)
(3)Body Control Module (BCM) C2 (I/P Harness)
(4)C204 I/P Harness to Body Harness
Figure 2:

I/P Harness Components


Object Number: 1550702  Size: LF
(1)C203 I/P Harness to HVAC Module Harness
(2)C205 I/P Harness to HVAC Module Harness
(3)Body Control Module (BCM) Connector
(4)C204 I/P Harness to Body Harness
(5)Trailer Blunt-Cut Harness Wires
(6)Data Link Connector (DLC)
(7)C208 I/P Harness to Body Harness
(8)C200 I/P Harness to Body Harness
(9)C207 I/P Harness to Body Harness
(10)C201 I/P Harness to Steering Column Harness