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

Battery Cable and Grounding Point


Object Number: 581299  Size: LF
(1)Battery
(2)Underhood Accessory Wiring Junction Block
(3)G100
Figure 2:

Generator (RPO LG8)


Object Number: 589952  Size: LF
(1)Generator B+
(2)Generator
(3)Generator Connector
Figure 3:

Generator (RPO L36)


Object Number: 589977  Size: LF
(1)Generator B+
(2)Generator
Figure 4:

Generator (RPO L67)


Object Number: 589949  Size: LF
(1)Generator B+
(2)Generator
(3)Generator Connector
Figure 5:

Lower Front of Engine


Object Number: 389009  Size: LF
(1)G117 (Engine Compartment Ground)
(2)G111/G113 (Ignition Control Module, Engine Electronic and Battery Grounds)
(3)Starter Assembly
(4)Bank 1 Knock Sensor (KS)
(5)Positive Battery Cable
(6)Fusible Links
(7)Engine Oil Pressure Indicator Switch
Figure 6:

Starter (RPO L36)


Object Number: 589944  Size: LF
(1)Starter Solenoid Battery Feed
(2)Fusible Link (Starter Motor)
(3)Starter
(4)Starter Solenoid
Figure 7:

Engine (RPO L67), near Starter


Object Number: 581303  Size: LF
(1)G113
(2)G117
(3)C171 (Inline from Engine to LF Wheel Speed Sensor)
(4)Starter Solenoid Connection
(5)Engine Oil Pressure Sensor
(6)Knock Sensor
(7)Positive Battery Connection to Starter
(8)Fusible Link (Engine)