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

Engine Compartment


Object Number: 1490201  Size: LF
(1)Battery Positive Voltage
(2)Fuse Block-Underhood C4
(3)Fuse Block-Underhood C3
(4)Fuse Block-Underhood C2
(5)Fuse Block-Underhood C1
(6)Battery
(7)Fuse Block-Underhood
(8)G104
(9)G106 (Engine Block)
(10)G107 (Engine Block)
(11)G105 (Engine Block)
(12)C103
(13)G101
(14)G102
Figure 2:

Passenger Area


Object Number: 1491111  Size: LF
(1)Cigar Lighter
(2)Auxiliary Outlet
(3)G301
(4)G201
(5)Splice Pack SP205
(6)Ignition Mode Switch
Figure 3:

Right Side of I/P


Object Number: 1491962  Size: LF
(1)Splice Pack SP208
(2)Body Control Module (BCM) C2
(3)Body Control Module (BCM) C3
(4)Body Control Module (BCM) C4
(5)G202
(6)Relay Block-I/P
(7)G302
Figure 4:

G401 and G402


Object Number: 1491963  Size: LF
(1)Fuel Tank-Right
(2)G402
(3)G401