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

Left Side of Engine Compartment, In Front of Stud Tower


Object Number: 572635  Size: LF
(1)Cruise Control Module
(2)C156 (Inline From Washer/Wiper top Engine Harness)
(3)Cruise Control Module Connector
Figure 2:

Above Brake Pedal Bracket


Object Number: 587424  Size: LF
(1)Cruise Control Release Switch
(2)Brake Pedal
(3)Brake Switch