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

Low Beam Relay K131 and Turn Signal Switch


Object Number: 595408  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
Headlamp Switch, BCM, Heater and A/C Control and Instrument Cluster
Underhood Fuse Block Fuse V5 and Fuse Block Fuses 6, 7, 20, and 25
Battery Cable Bus
Fuse Block Fuses 1, 8, and 27
Underhood Fuse Block Fuse V5 and Fuse Block Fuses 6, 7, 20, and 25
Headlamps
Headlamps
Headlamp Switch, BCM, Heater and A/C Control and Instrument Cluster
Headlamp Switch, BCM, Heater and A/C Control and Instrument Cluster
Figure 2:

Headlamp Switch, BCM, Heater and A/C Control, and Instrument Cluster


Object Number: 595418  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
Headlamps
Low Beam Relay K131 and Turn Signal Switch
Low Beam Relay K131 and Turn Signal Switch
Fuse Block Fuse 15
Underhood Fuse Block Fuses V1 and V4, and Ignition Switch
Ambient Light/Sunload and Air Temperature Sensors
Park Lamp Relay and Headlamp Switch
G103 (8 of 8)
G103 (7 of 8)
G103 (6 of 8)
G103 (1 of 8)
Low Beam Relay K131 and Turn Signal Switch
Figure 3:

Headlamps


Object Number: 595409  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
DRL and Headlamp Relays High Beam
Headlamp Switch, BCM, Heater and A/C Control and Instrument Cluster
Low Beam Relay K131 and Turn Signal Switch
Low Beam Relay K131 and Turn Signal Switch
Lighting Systems Schematic Icons
Lighting Systems Schematic Icons
G103 (3 of 8)
G103 (1 of 8)
Figure 4:

DRL and Headlamp Relays High Beam


Object Number: 595410  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
Indicators
Headlamps
Underhood Fuse Block Fuse V5 and Fuse Block Fuses 6, 7, 20, and 25
Underhood Fuse Block Fuse V5 and Fuse Block Fuses 6, 7, 20, and 25
Indicators
G103 (6 of 8)
Fog lamp Switch and Multifunction Relay K134
G103 (1 of 8)
G103 (3 of 8)
Figure 5:

Indicators


Object Number: 595411  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
DRL and Headlamp Relays High Beam
Underhood Fuse Block Fuses V1 and V4, and Ignition Switch
Underhood Fuse Block Fuse V6 and Fuse Block Fuses 17, 28, 29, 33, and34
Underhood Fuse Block Fuses V1 and V4, and Ignition Switch
Interior Lamps Relay and Door Jamb Switches
I/P Compartment, Dome/Reading, and Sunshade Lamps
Power, Headlamps On Required, ABS, Traction Control, Sport Mode, Check Engine, Brake To Shift, Air Bag, Charging System Brake Pad Wear, Low Washer Fluid, Seat Belt Leveling, Brake and Cruise Indicator
Power, Ground, DLC, Turn Signal, Fog Lamp, Security, Rear Compartment Lid Release Open, High Beam Indicators and Back Lighting Lamps
DRL and Headlamp Relays High Beam