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

Inflatable Restraint Sensing and Diagnostic Module (SDM)


Object Number: 590810  Size: LF
(1)G306
(2)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(3)Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
Figure 2:

Steering Wheel and Inflator Module


Object Number: 591331  Size: LF
(1)Steering wheel
(2)Inflator Restraint Steering Wheel Inflator Module
(3)Horn Switch Contact
(4)Inflatable Restraint Steering Wheel Coil
Figure 3:

Inflatable Restraint IP Module


Object Number: 239654  Size: LF
(1)Inflatable Restraint IP Module
(2)Inflatable Restraint IP Module connector
Figure 4:

Inflatable Restraint Front End Discriminating Sensor


Object Number: 239662  Size: LF
(1)Inflatable Restraint Front Discriminating Sensor