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

Cell 100: Power, Headlamps, Headlamp Switch, Instrument Cluster


Object Number: 400608  Size: FS
Cell 10: Battery, Generator, EBTCM, and Underhood Accessory Wiring Junction Block
Cell 14: LH IP Ground G201
Lighting Systems Components
Headlights Circuit Description
Cell 100: Power, DRL Control Module, BCM, Park Brake Indicator Switch
Handling ESD Sensitive Parts Notice
Cell 100: Power, DRL Control Module, BCM, Park Brake Indicator Switch
Cell 103: Power, Instrument Cluster, Headlamp Switch, Headlamps
Cell 10: HDLP L, HDLP R, and LP PARK Fuses
Figure 2:

Cell 100: Power, DRL Control Module, BCM, Park Brake Indicator Switch


Object Number: 400613  Size: FS
Lighting Systems Components
Headlights Circuit Description
Cell 100: Power, Headlamps, Headlamp Switch, Instrument Cluster
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Cell 14: LH IP Ground G201
Cell 100: Power, Headlamps, Headlamp Switch, Instrument Cluster
Cell 110: Power, DRL Control Module, BCM, Headlamp Switch, Park Brake Indicator Switch
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses