GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Century 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Lighting Systems Component Views
Figure 1:

LF of Vehicle Forward Lamp to Headlamp
Object Number: 305303 Size: LF
(1)Headlamp Assembly Connector - Left Shown, Right Similar
(2)Headlamp Assembly - Left Shown, Right Similar
Figure 2:

Lower Left Front of Vehicle
Object Number: 592276 Size: LF
(1)Fog Lamp LH Shown, RH Similar
Figure 3:

Upper Left Side of Instrument Cluster
Object Number: 592274 Size: LF
(1)Headlamp Switch
(2)Headlamp Switch Connector
Figure 4:

Lower Left of Instrument Panel
Object Number: 592288 Size: LF
(1)Driver Information Display Switch Connector
(2)Driver Information Display/Fog Lamp Switch
(3)Fog Lamp Switch Connector
Figure 5:

Center Console (D06, D55 - If Equipped)
Object Number: 822775 Size: LF
(1)Heated Seat Switch - Driver (KA1)
(2)Traction Control Switch (Regal)
(3)Heated Seat Switch - Passenger (KA1)
(4)Cigar Lighter
(5)Auxiliary Power Outlet (If Equipped)
(6)C240 (Regal), C241 (Century - If Equipped)
(7)I/P Wiring Harness
Figure 6:

Behind Brake Pedal Bracket
Object Number: 591434 Size: LF
(1)Cruise Control Release Switch Connector
(2)Stop Lamp Switch
(3)C201
(4)Stop Lamp Switch Connector C2
(5)Stop Lamp Switch Connector C1
(6)Cruise Control Release Switch
Figure 7:

Below Left Side of I/P
Object Number: 887933 Size: MF
(1)Body Control Module (BCM)
(2)Body Control Module (BCM) Connector, C4
(3)Body Control Module (BCM) Connector, C3
(4)Body Control Module (BCM) Connector, C2
(5)Body Control Module (BCM) Connector, C1
(6)Fog Lamp Switch Connector
(7)I/P Courtesy Lamp -- Left
(8)Turn Signal/Hazard Flasher Module
(9)Backup Lamp Relay
Figure 8:

Right Side of Instrument Panel - Rear
Object Number: 855481 Size: LF
(1)Park Lamp Relay
(2)Brake to Shift Relay
(3)P100
(4)Fuse Block-I/P
Figure 9:

Behind Right Side of Instrument Panel
Object Number: 591499 Size: LF
(1)Instrument Panel Courtesy Lamp, RH
(2)Rear Compartment Lid Release Relay
(3)Automatic Headlamp Relay
(4)Rear Window Defogger Relay
(5)Retained Accessory Power (RAP) Relay
Figure 10:

Right Side of Instrument Panel Compartment
Object Number: 908759 Size: MF
(1)I/P Compartment Lamp/Switch (Regal, Century Custom)
(2)Instrument Panel Compartment
(3)Fuse Block - I/P
Figure 11:

Right Side of IP
Object Number: 399289 Size: LF
(1)Daytime Running Lamps Diode
(2)Daytime Running Lamps Control Module
(3)Instrument Panel Wiring Harness
Figure 12:

Top of Instrument Panel, Base of Windshield
Object Number: 592286 Size: LF
(1)Sun Load Temperature Sensor
(2)Daytime Running Lamp (DRL) Ambient Light Sensor
Figure 13:

Bottom Left Side of Instrument Panel
Object Number: 592278 Size: LF
(1)Instrument Panel Courtesy Lamp, LH
Figure 14:

Dome Lamp Component View
Object Number: 388937 Size: LF
(1)Dome Lamp Connector
(2)Dome Lamp
Figure 15:

Left Front Door
Object Number: 389002 Size: LF
(1)Radio Front Door Speaker
(2)Radio Front Door Speaker Connector
(3)Door Courtesy Lamp
(4)Door Courtesy Lamp Connector
Figure 16:

Center of Package Shelf
Object Number: 399301 Size: LF
(1)Center High Mounted Stop Lamp(CHMSL)
Figure 17:

Front of Rear Compartment
Object Number: 297958 Size: LF
(1)Rear Compartment Courtesy Lamp
(2)Right Rear Speaker Connector
(3)Left Rear Speaker Connector
(4)Center High Mounted Stop Lamp
Figure 18:

Rear of the Vehicle
Object Number: 1208573 Size: MF
(1)C915
(2)P915
(3)Backup Lamp Applique
Figure 19:

Left Rear of Vehicle
Object Number: 592283 Size: LF
(1)C401 LH Shown, C402 RH Similar
(2)Tail/Stop/Turn Signal Lamp Applique
(3)P401 LH Shown, P402 RH Similar