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

IP Harness Passthrough to Wiper Motor Space


Object Number: 581308  Size: LF
(1)P103
(2)Cruise Control Module
(3)Brake Level Sensor
Figure 2:

Behind Brake Pedal Bracket


Object Number: 591434  Size: LF
(1)Cruise Control Release Switch Connector
(2)Brake Switch
(3)C201 (Inline from Body to Floor Console)
(4)Brake Switch, C2 Connector
(5)Brake Switch, C1 Connector
(6)Brake Switch