GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C Sierra - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Interior Lights Dimming Schematics
Figure 1:

Cell 117: G203, Headlamp and Panel Dimmer Switch
Object Number: 297457 Size: FS
Lighting Systems Components
Interior Lights Circuit Description
Cell 117: G200, G203, Inflatable Restraint IP Module Switch
Handling ESD Sensitive Parts Notice
Cell 10: Underhood Bussed Electrical Center, HVAC Blower Switch
Exterior Lights Schematics
Exterior Lights Schematics
Cell 114: Body Control Module, Headlamp and Dimmer Switch
Cell 117: G200, G203, Inflatable Restraint IP Module Switch
Cell 14: Horn Switch, C201C, C207C
Cell 14: Horn Switch, C201C, C207C
Figure 2:

Cell 117: G200, G203, Inflatable Restraint IP Module Switch
Object Number: 297458 Size: FS
Lighting Systems Components
Interior Lights Circuit Description
Cell 117: G203, Headlamp and Panel Dimmer Switch
Handling ESD Sensitive Parts Notice
Cell 117: G203, Headlamp and Panel Dimmer Switch
Cell 14: Temperature Door Motor, Passenger Heated Seat Switch, Roof Marker Lamps
Cell 14: Full Feature Seat Heated/Memory Seat Switch, Light Bar Switch
Cell 14: Full Feature Seat Heated/Memory Seat Switch, Light Bar Switch