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

Park Brake Switch


Object Number: 1359047  Size: LF
(1)Park Brake Switch Connector
(2)Body Harness
(3)Park Brake Switch
(4)Park Brake Lever
(5)Cowel Side Inner Panel
Figure 2:

Brake Fluid Level Switch


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