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

Brake Fluid Level Switch


Object Number: 794233  Size: MF
(1)Brake Fluid Level Switch
Figure 2:

Parking Brake


Object Number: 799038  Size: MF
(1)Park Switch
(2)IP Harness Lead
(3)Parking Brake
Figure 3:

LH Lower Instrument Panel near Steering Column


Object Number: 520539  Size: MF
(1)Cruise Control Brake Switch
(2)Brake Switch
(3)SIR Branch
(4)SIR SDM Harness
(5)Cruise Control Switch