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

Center Console


Object Number: 861251  Size: LF
(1)Body Control Module (BCM) C2 Connector
(2)Body Control Module (BCM) C1 Connector
(3)Body Control Module (BCM) C0 Connector
(4)Fuse Block - Center Console C2 Connector
(5)Fuse Block - Center Console C1 Connector
(6)Rear Parking Assist (RPA) Diagnostic Connector (UD7)
Figure 2:

Rear Parking Assist (RPA) Subsystem


Object Number: 819386  Size: LF
(1)Rear Parking Assist (RPA) Display
(2)Rear Parking Assist (RPA) Display Housing
(3)C411
(4)Object Sensor - RR Corner
(5)Object Sensor - RR Middle
(6)Object Sensor - LR Middle
(7)Object Sensor - LR Corner
(8)Rear Parking Assist (RPA) Module
(9)I/P Switch Assembly