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

On The Steering Wheel/Column


Object Number: 826812  Size: LF
(1)Turn Signal/Multifunction Switch (Cruise Control ON/OFF, Resume/Accel and Set/Coast Switches (K34), Headlamp Dimmer Switch, Turn Signal Switch, Windshield Wiper and Windshield Washer Switches)
(2)Horn Switch Ground Contact
Figure 2:

Wiper Motor, Fluid Pump, Fluid Level Switch, Blower Motor Assembly


Object Number: 1066341  Size: LF
(1)Blower Motor Resistor Assembly Connector
(2)Blower Motor Resistor Assembly
(3)Wiper Motor
(4)Windshield Washer Fluid Pump
(5)Windshield Washer Fluid Level Switch
(6)Blower Motor