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

Steering Column, Left


Object Number: 228426  Size: LF
(1)Multifunction Switch
(2)Right Multifunction Lever
(3)Ignition Switch
(4)Left Multifunction Lever
Figure 2:

Instrument Panel Harness to Right Seat


Object Number: 228786  Size: MF
(1)Lower IP Harness
(2)Inverting Driver Module Connector (JE3)
(3)Inverting Driver Module (JE3)
(4)Multifunction Alarm Module
(5)Ignition Main Relay
(6)Speedo Adapter (Vehicle Speed Sensor (VSS) Buffer)
(7)Pre Stroke Power Cut Relay Fusible Link, 30 A
(8)Engine Control Module
(9)Engine Control Module Connector C2 (80 cavities)
(10)Engine Control Module Connector C1 (40 cavities)