Upper Steering Column

Component Name	Callout
Theft Deterrent Module (TDM)	1
Ignition Key Alarm Switch	2
Ignition Switch	3
Ignition Key Cylinder	4
Horn Switch	5
Inflatable Restraint Steering Wheel Module	6
Turn Signal/Multifunction Switch	7
Hazard Warning Switch	8

Fig 1: Upper Steering Column

Courtesy of GENERAL MOTORS CORP.