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

Headlamp and Panel Dimmer Switch


Object Number: 511499  Size: FS
Lighting Systems Components
Interior Lights Dimming Circuit Description
Overhead Console, Convenience Center
Turn Indicators, Park/Turn Signal Lamps, Front Side Marker Lamps
G110 (1 of 2)
G200 (1 of 2)
Overhead Console, Convenience Center
Overhead Console, Convenience Center
Overhead Console, Convenience Center
Overhead Console, Convenience Center
Overhead Console, Convenience Center
Dimming Rheostat
Lighting Systems Schematic Icons
Lighting Systems Schematic Icons
Figure 2:

Overhead Console, Convenience Center


Object Number: 511501  Size: FS
Lighting Systems Components
Interior Lights Dimming Circuit Description
Dimming Rheostat
Headlamp and Panel Dimmer Switch
Lighting Systems Schematic Icons
Headlamp and Panel Dimmer Switch
Headlamp and Panel Dimmer Switch
Headlamp and Panel Dimmer Switch
G105 and G107
Headlamp and Panel Dimmer Switch
Headlamp and Panel Dimmer Switch
Lighting Systems Schematic Icons
Figure 3:

Dimming Rheostat


Object Number: 511503  Size: FS
Lighting Systems Components
Interior Lights Dimming Circuit Description
Overhead Console, Convenience Center
Lighting Systems Schematic Icons
Headlamp and Panel Dimmer Switch
G200 (1 of 2)
G105 and G107
Lighting Systems Schematic Icons