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

Left Ceter of Instrument Panel


Object Number: 593534  Size: LF
(1)Instrument Cluster Connector
Figure 2:

Lower Left of Instrument Panel


Object Number: 592288  Size: LF
(1)Driver Information Display Switch Connector
(2)Driver Information Display/Fog Lamp Switch
(3)Fog Lamp Switch Connector
Figure 3:

Right Rear Side of Engine Compartment


Object Number: 389013  Size: LF
(1)Electronic Brake Control Module (EBCM)/Brake Pressure Modulator (BPM)
(2)Electronic Brake Control Module (EBCM) Connector
(3)Brake Fluid Level Indicator Switch
Figure 4:

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)