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

Passenger Compartment, Right Side Below the IP


Object Number: 154428  Size: LF
(1)Air Inlet Actuator
(2)Blower Control Module
(3)Blower Motor
(4)C203
(5)Dash Integration Module (DIM)
(6)Passenger Air Mix Actuator
(7)S275
(8)S274
(9)S278
Figure 2:

Behind the Rear Seat


Object Number: 154443  Size: LF
(1)Continuously Variable Road Sensing Suspension (CVRSS) Module
(2)S401
(3)Rear Integration Module (RIM)