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

Instrument Panel


Object Number: 1482230  Size: LF
(1)Speaker - Left Front Tweeter
(2)Instrument Cluster
(3)Turn Signal/Multifunction Switch
(4)Traction Control Switch
(5)Radio
(6)HVAC Control Module
(7)Speaker - Right Front Tweeter
(8)Inflatable Restraint I/P Module
(9)Inflatable Restraint I/P Module Disable Switch
(10)Digital Radio Receiver
(11)Ride Height Switch (ZM6)
(12)Tow/Haul Switch
(13)Headlamp and Panel Dimmer Switch
(14)Midgate Window Switch (SUT) or Rear Wiper/Washer Switch (Except SUT)
Figure 2:

Lower Right Side of Engine


Object Number: 828615  Size: MF
(1)Crankshaft Position (CKP) Sensor Connector
(2)Starter Motor
(3)Engine Oil Level Switch
Figure 3:

Engine Oil Pressure (EOP) Sensor and CMP Sensor


Object Number: 774474  Size: LF
(1)Engine Oil Pressure (EOP) Sensor
(2)Camshaft Position (CMP) Sensor
(3)Camshaft Position (CMP) Sensor Connector
Figure 4:

Steering Wheel and Column


Object Number: 856748  Size: LF
(1)Steering Wheel Control Switch Assembly - Upper Left
(2)Passlock Sensor Connector
(3)Ignition Key Alarm Switch
(4)Ignition Lock Cylinder Control Actuator
(5)Ignition Lock Cylinder Control Actuator Connector
(6)Ignition Switch
(7)Ignition Key Cylinder
(8)Steering Wheel Control Switch Assembly - Upper Right
(9)Horn Switch
(10)Steering Wheel Control Switch Assembly - Lower Right
(11)C277
(12)Steering Wheel Control Switch Assembly - Lower Left
(13)Turn Signal/Multifunction Switch