GM Service Manual Online
For 1990-2009 cars only

Headlights Schematics Domestic

Figure 1:

Headlamp Switch


Object Number: 479799  Size: FS
Lighting Systems Components
Headlights Circuit Description
Low Beam Headlamps
Instrument Panel Dimming
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Sensors
Serial Data Class 2 (1 of 3)
Dimming Control
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 2:

Low Beam Headlamps


Object Number: 479804  Size: FS
Lighting Systems Components
Headlights Circuit Description
High Beam Headlamps
Headlamp Switch
Underhood Fuse Block Battery Voltage
Underhood Fuse Block Battery Voltage
High Beam Headlamps
High Beam Headlamps
High Beam Headlamps
High Beam Headlamps
Serial Data Class 2 (1 of 3)
Wiper/Washer Switch and Pump
Headlamp Switch, Park Lamp Relay
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 3:

High Beam Headlamps


Object Number: 479823  Size: FS
Lighting Systems Components
Headlights Circuit Description
Low Beam Headlamps
Underhood Fuse Block Battery Voltage
G402 - Fuel Sender and Other Items
Serial Data Class 2 (1 of 3)
G201 - Steering Column
Low Beam Headlamps
Low Beam Headlamps
Low Beam Headlamps
G201 - Steering Column
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice

Headlights Schematics Export

Figure 1:

Headlamp Switch


Object Number: 479813  Size: FS
Lighting Systems Components
Headlights Circuit Description
Low Beam Headlamps
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Sensors
Serial Data Class 2 (1 of 3)
Dimming Control
Instrument Panel Dimming
Headlamp Switch, Park Lamp Relay
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 2:

Low Beam Headlamps


Object Number: 479817  Size: FS
Lighting Systems Components
Headlights Circuit Description
High Beam Headlamps
Headlamp Switch
Wiper/Washer Switch and Pump
Serial Data Class 2 (1 of 3)
Headlamp Switch, Park Lamp Relay
High Beam Headlamps
High Beam Headlamps
High Beam Headlamps
High Beam Headlamps
Figure 3:

High Beam Headlamps


Object Number: 479823  Size: FS
Lighting Systems Components
Headlights Circuit Description
Low Beam Headlamps
Underhood Fuse Block Battery Voltage
G201 - Steering Column
G201 - Steering Column
Serial Data Class 2 (1 of 3)
Low Beam Headlamps
Low Beam Headlamps
Low Beam Headlamps
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice