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

Cell 117: Power, Instrument Cluster, Headlamp Switch, Steering Wheel Control Switch,


Object Number: 400669  Size: FS
Lighting Systems Components
Interior Lights Dimming Circuit Description
Cell 117: Door Lock Switches, Window Switches, Outside Remote Control Rearview Mirror Switch
Cell 10: HDLP L, HDLP R, and LP PARK Fuses
Cell 10: HDLP L, HDLP R, and LP PARK Fuses
Cell 103: Power, Fog Lamps, Headlamp Switch, Fog Lamp Switch, BCM
Cell 51: BCM Power, DRL Link, Fog Lamps, and Horn
Cell 10: FRT PARK LPS FOG LAMPS, PANEL DIMMING, and TAIL LAMPS LIC LAMPS Fuses
Cell 103: Power, Fog Lamps, Headlamp Switch, Fog Lamp Switch, BCM
SIR Handling Caution
Cell 10: IGN 1 MaxiFuse®, and Ignition Switch
Cell 14: RH IP Ground G200
Cell 14: RH IP Ground G200
SIR Handling Caution
Cell 66
Cell 117: Door Lock Switches, Window Switches, Outside Remote Control Rearview Mirror Switch
Handling ESD Sensitive Parts Notice
Cell 14: LH IP Ground G201
Figure 2:

Cell 117: Door Lock Switchs, Window Switchs, Outside Remote Control Rearview Mirror Switch


Object Number: 400671  Size: FS
Lighting Systems Components
Interior Lights Dimming Circuit Description
Cell 117: I/P Lamp Dimmer Switch, Instrument Cluster, Radio, Heater-A/C ControL
Cell 117: Power, Instrument Cluster, Headlamp Switch, Steering Wheel Control Switch,
Cell 14: LH Body Harness Ground G301
Figure 3:

Cell 117: I/P Lamp Dimmer Switch, Instrument Cluster, Radio, Heater-A/C Control


Object Number: 400672  Size: FS
Lighting Systems Components
Interior Lights Dimming Circuit Description
Cell 117: Door Lock Switches, Window Switches, Outside Remote Control Rearview Mirror Switch
Handling ESD Sensitive Parts Notice
Cell 14: RH IP Ground G200
Handling ESD Sensitive Parts Notice
Cell 14: LH IP Ground G201
Handling ESD Sensitive Parts Notice
Cell 10: FRT PARK LPS FOG LAMPS, PANEL DIMMING, and TAIL LAMPS LIC LAMPS Fuses