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

Lower Center of the I/P


Object Number: 1988323  Size: LF
(1)Relay Block 2
(2)Horn Relay
(3)Starter Cut Off Relay
(4)Dome Lamp Relay
Figure 2:

Front of the Vehicle, Behind the Left Side of the Front Bumper


Object Number: 231467  Size: LF
(1)Turn Signal Harness
(2)Turn Signal Harness
(3)Horn (w/o U08)
(4)Horn, A-Note (U08)
(5)Horn, F-Note (U08)
(6)Horn Harness (U08)
Figure 3:

Left Side of the I/P


Object Number: 231673  Size: LF
(1)Tachometer
(2)Horn Switch
(3)Speedometer
(4)I/P Dimming Module
(5)Multifunction Lever