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

Power, Grounds and DLC


Object Number: 688538  Size: FS
Master Electrical Component List original
Audible Warnings Description and Operation
Chimes
BTSI, Turn Signals/CORN LPS, Air Bag, Cluster, PCM/BCM/Crank/IGN Fuses
INADV POWER BUS/RAP, BCM, RADIO/HVAC/RFA/CLUSTER/DATA LINK, CIGAR LTR/AUXPOWER/POWER DROP Fuses and RAP Relay
IGN 2, IGN 0/Cluster/PCM/BCM, Crank/Signal/BCM/Cluster Fuses
IGN 2, IGN 0/Cluster/PCM/BCM, Crank/Signal/BCM/Cluster Fuses
BTSI, Turn Signals/CORN LPS, Air Bag, Cluster, PCM/BCM/Crank/IGN Fuses
Ground G203
01 W-Car Olds: Data LInk Communications (Data LInk Connector)
Figure 2:

Chimes


Object Number: 688539  Size: FS
Master Electrical Component List original
Audible Warnings Description and Operation
Power, Grounds and DLC
Battery, MaxiFuses, Fusible Link, CRANK, FOG, A/C CLU, R/CMPT, R/PMP, HORN, and IGN Main Relays
Park Lamps, Front Park Lamps, Tail Lamps/Lic Lamps, Panel Dimming Fuses, Headlamp Switch, Headlamp and Parklamp Relays
Ground G203
01 W-Car Olds: Hydraulic Brakes (Brake Warning Schematics)
Door Handle Controls