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

Left Front Fender Well


Object Number: 1266735  Size: MF
(1)Windshield Washer Fluid Level Switch
(2)Front/Rear Window Washer Fluid Pump (C25)/Windshield Washer Fluid Pump (w/o C25)
(3)Horn Assembly
Figure 2:

Steering Wheel (3-Spoke)


Object Number: 1651900  Size: LF
(1)Steering Wheel Controls - Left
(2)Steering Wheel Controls - Right
(3)Horn Switch
Figure 3:

Steering Wheel Components (4-Spoke)


Object Number: 1730418  Size: LF
(1)Steering Wheel
(2)Steering Wheel Controls - Right
(3)Steering Wheel Controls - Left
(4)Horn Switch