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

Center Console


Object Number: 329663  Size: LF
(1)Driver Seat Heater Switch
(2)Traction Control Switch
(3)Passenger Seat Heater Switch
(4)Console Compartment Lamp
(5)Front Floor Console Wiring Harness
(6)Accessory Power Receptacle
(7)Cigar Lighter
(8)Console Cover Assembly
Figure 2:

Center Of Instrument Panel (Century)


Object Number: 329256  Size: LF
(1)C242
Figure 3:

Underhood Accessory Wiring Junction Block


Object Number: 399300  Size: LF
(1)Underhood Accessory Wiring Junction, C6
(2)Underhood Accessory Wiring Junction Block, C3 (Forward Lamp)
(3)Underhood Accessory Wiring Junction Block, C2 (Instrument Panel)
(4)Underhood Accessory Wiring Junction Block, C1 (Engine)
(5)Underhood Accessory Wiring Junction Block, C7
(6)Underhood Accessory Wiring Junction Block, C5
(7)Underhood Accessory Wiring Junction Block, C4