GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Horn Component Views
Figure 1:

Horns
Object Number: 354766 Size: LF
(1)Fender, LF
(2)Horn, LH
(3)Insulator
(4)Horn, RH
(5)Fender, RF
Figure 2:

HORN Relay
Object Number: 357898 Size: LF
Figure 3:

SIR Steering Wheel Module and Coil
Object Number: 357153 Size: MF
(1)Multifunction Switch
(2)Horn Switch
(3)Supplemental Inflatable Restraint (SIR) Steering Wheel Inflator Module