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

Middle Left Side of I/P Components


Object Number: 1536079  Size: LF
(1)Theft Light Emitted Diode (LED) (UA6)
(2)Ambient Light Sensor
(3)HVAC Control Module
(4)Vent and Floor Actuator
(5)Air Temperature Actuator (C60) or Air Temperature Actuator - Left (CJ3)
(6)Defrost Actuator
(7)Body Control Module (BCM)
(8)Digital Radio Receiver (U2K)
(9)Vehicle Communication Unit (VCU) (UE1)
Figure 2:

Steering Column Components


Object Number: 1517022  Size: LF
(1)Turn Signal/Multifunction Switch C3
(2)C279 Inflatable Restraint Steering Wheel Module Coil to Steering Wheel Harness
(3)Inflatable Restraint Steering Wheel Module Coil C1 Connector
(4)Inflatable Restraint Steering Wheel Module Coil C2 Connector
(5)Turn Signal/Multifunction Switch C2
(6)Turn Signal/Multifunction Switch C1
(7)Rear Wiper/Washer Switch
(8)Turn Signal/Multifunction Switch
(9)Turn Signal/Multifunction Switch C4
(10)S277 and S279
(11)C277 Inflatable Restraint Steering Wheel Module Coil to Steering Column Harness
(12)C275 Inflatable Restraint Steering Wheel Module Coil to Body Harness
(13)C201 Steering Column Harness to I/P Harness
(14)Steering Wheel Speed Position Sensor (JL4)
(15)Theft Deterrent Exciter Module Connector (Pigtail)
(16)Inflatable Restraint Steering Wheel Module Coil
(17)Theft Deterrent Exciter Module
(18)Ignition Switch
(19)A/T Shift Lock Control Solenoid Connector