GM Service Manual Online
For 1990-2009 cars only
Figure 1:
Object Number: 324466  Size: LF
(1)Inflatable Restraint Steering Wheel Module
(2)Inflatable Restraint I/P Module
(3)Inflatable Restraint Sensing and Diagnostic Module (SDM)
Figure 2:

Inflatable Restraint Steering Wheel Module Coil


Object Number: 385912  Size: LF
(1)Inflatable Restraint Steering Wheel Module Coil
(2)Steering Column Assembly