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

Inside Rearview Mirror, Dome Lamp, Footwell Courtesy Lamps, and Cargo Lamp


Object Number: 1283684  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Door Lock and Window Switches, and Outside Rearview Mirror Switch
Fog Lights
Headlights/Daytime Running Light (DRL) Schematics - TT5
Headlights/Daytime Running Light (DRL) Schematics (w/o TT5)
Interior Lights Dimming
B+ Bus - Underhood Fuse Block
Outside Mirrors
OnStar Schematics
Stop Lamps, and License Lamps
Splice Pack SP105 and G105 - 1 of 2
G300, G301, and G302
Splice Pack SP105 and G105 - 1 of 2
Figure 2:

Door Lock and Window Switches, and Outside Rearview Mirror Switch


Object Number: 1283695  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Door Jamb Switches
Inside Rearview Mirror, Dome Lamp, Footwell Lamps, and Cargo Lamp
B+ Bus - Underhood Fuse Block
FRT PARK LAMP, REAR PARK LAMP #1, and REAR PARK LAMP #2 Fuses
Door Jamb Switches
Door Jamb Switches
Power Door Locks - Regular and Extended Cab
Power Door Locks - Crew Cab
Left Door - Regular and Extended Cab
Left Door - Crew Cab
Power Door Locks - Regular and Extended Cab
Power Door Locks - Crew Cab
Right Door - Regular and Extended Cab
Right Door - Crew Cab
Splice Pack SP105 and G105 - 1 of 2
Splice Pack SP106 and G106 - 1 of 2
Figure 3:

Door Jamb Switches


Object Number: 1378578  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Door Lock and Window Switches, and Outside Rearview Mirror Switch
B+ Bus - Underhood Fuse Block
Door Lock and Window Switches, and Outside Rearview Mirror Switch
Rear Doors - Crew Cab
Splice Pack SP105 and G105 - 1 of 2
Rear Doors - Crew Cab
Splice Pack SP106 and G106 - 1 of 2
G300, G301, and G302
G300, G301, and G302