GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy C Silverado - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Lighting Systems Component Views
Figure 1:

Hood
Object Number: 310026 Size: MF
(1)Hood
(2)Hood Reinforcement
(3)Underhood Lamp Assembly Electrical Connector
(4)Underhood Lamp Assembly
(4)Underhood Lamp Assembly
Figure 2:

Center High Mounted Stop/Cargo Lamp
Object Number: 350025 Size: MF
(1)Center High Mounted Stop/Cargo Lamp
(2)Center High Mounted Stop/Cargo Lamp Connector
(3)Roof
Figure 3:

Roof Lamps
Object Number: 327891 Size: MF
(1)Lamp Assembly
(2)Lamp Assembly Socket
(3)Lamp Assembly Harness
(4)Lamp Assembly Nuts
(5)Bulb
(6)Roof Marker Lamp - Right
(7)Clearance Lamps
(8)Roof Marker Lamp - Left
Figure 4:

Ambient Light Sensor
Object Number: 310130 Size: MF
(1)Instrument Panel Bracket
(2)Ambient Light Sensor Harness
(3)Ambient Light Sensor Connector
(4)Ambient Light Sensor
(5)Instrument Panel
Figure 5:

Lamp Switch Housing
Object Number: 310113 Size: MF
(1)Automatic Transfer Case (ATC) Electrical Connector
(2)Automatic Transfer Case (ATC) Electrical Connector
(3)Automatic Transfer Case (ATC) Select Switch
(4)Cargo/Fog Lamp Switch
(5)Headlamp and Panel Dimmer Switch
(6)Instrument Panel
(7)Headlamp and Panel Dimmer Switch Electrical Connector
(8)Cargo/Fog Lamp Switch Electrical Connector
Figure 6:

Left Hand Lower Dash
Object Number: 310145 Size: MF
(1)Left Bussed Electrical Center (LBEC) Connector
(2)Body Control Module (BCM) Connector
(3)Splice Pack 205 (SP205)
(4)Left Bussed Electrical Center (LBEC)
(5)Data Link Connector (DLC)
(6)LH IP Courtesy Lamp
(7)LH IP Courtesy Lamp Socket
(8)LH IP Support to Dash
(9)Right Windshield Pillar Trim Panel
Figure 7:

Trailer Wiring Harness
Object Number: 349960 Size: MF
(1)Trailer Wiring Connector
(2)Trailer Wiring Receptacle
(3)Frame
(4)Trailer Hitch Receiver
Figure 8:

Center of the Rear Bumper (Pickup)
Object Number: 309881 Size: MF
(1)Lamp Socket
(2)Bulb
(3)RH License Lamp
(4)Bumper
(5)LH License Lamp
(6)Rear Cross Sill
(7)Rear Lamps Bussing Block-Pickup only
Figure 9:

LF Corner of the Bumper
Object Number: 350006 Size: MF
(1)Bumper
(2)Fog Lamp - LF
(3)Air Deflector
(4)Fog Lamp - LF Connector
(5)Fog Lamp Harness
(6)Fog Lamp Bracket (Part of Fog Lamp)
Figure 10:

Overhead Console (Extended Cab)
Object Number: 350007 Size: MF
(1)Headliner
(2)Overhead Console
(3)Overhead Console Electrical Connector
(4)Headliner Harness Electrical Connector
Figure 11:

Center of the I/P -- Accessory Switches
Object Number: 350001 Size: LF
(1)Fog Lamp Switch
(2)Roof Beacon Switch
(2)Roof Beacon Switch
(3)Accessory Switch Housing
(3)Accessory Switch Housing
(4)Instrument Panel
Figure 12:

LR Frame -- Camper Provision
Object Number: 309959 Size: MF
(1)Camper Wiring Harness
(2)Frame
(3)Camper Wiring Harness Connector
Figure 13:

Rear of the Vehicle Components (Pickup)
Object Number: 350027 Size: MF
(1)Rear Cross Sill
(2)Right Tail/Stop-Turn Lamp
(3)Right Taillamp Harness
(4)Bed to Sill Reinforcement
(5)Rear Lamp Harness Connectors
(6)Left Taillamp Harness
(7)Left Tail/Stop-Turn Lamp
(8)Rear Lamps Bussing Block
Figure 14:

Fog/Cargo Lamp Switch
Object Number: 350005 Size: MF
(1)Housing
(2)Fog/Cargo Lamp Switch -- Pickup Only
(3)Headlamp and Panel Dimmer Switch
Figure 15:

Dome/Reading Lamp (Regular Cab)
Object Number: 350012 Size: MF
(1)Overhead Console
(2)Dome/Reading Lamp
(3)Dome/Reading Lamp Electrical Connector
Figure 16:

Driver Door Panel Components -- Courtesy Lamp
Object Number: 350018 Size: MF
(1)Door Courtesy Lamp Electrical Connector
(2)Door Courtesy Lamp
(3)Left Door
Figure 17:

Instrument Panel Compartment Lamp
Object Number: 350014 Size: MF
(1)Instrument Panel
(2)Instrument Panel Compartment Lamp and Switch
Figure 18:

License Lamp (without Bumper)
Object Number: 350024 Size: MF
(1)Frame
(2)License Lamp Electrical Connector
(3)License Lamp
Figure 19:

RH Front of Vehicle
Object Number: 310805 Size: MF
(1)Upper Radiator Support (Tie Bar)
(2)RH Lowbeam Lamp
(3)Snowplow (Option) Connector C127
(4)RH Front Park/Turn Lamp Bulb
(5)RH Front Park/Turn Lamp Socket
(6)RH Front Park/Turn Lamp Lens
(7)RH Marker Lamp Socket
(8)RH Daytime Running Lamp Socket
(9)RH Daytime Running Lamp Bulb
(10)RH Daytime Running Lamp Lens
(11)RH Headlamp Assembly
(12)RH Highbeam Lamp
Figure 20:

LH Front of Vehicle
Object Number: 310802 Size: MF
(1)Upper Radiator Support (Tie Bar)
(2)LH Headlamp Assembly
(3)LH High Beam Lamp Connector
(4)LH Daytime Running Lamp Bulb
(5)LH Daytime Running Lamp Socket
(6)Windshield Washer Reservoir
(7)LH Front Park/Turn Lamp Socket
(8)LH Front Marker Socket
(9)LH Front Marker Bulb
(10)LH Front Park/Turn Lamp Bulb
(11)Snowplow (Option) Connector C125
(12)LH Low Beam Connector
(13)LH Front Marker Lamp Lens (RH similar)
Figure 21:

Lower Center of the I/P Components
Object Number: 310152 Size: MF
(1)Ashtray Lamp Socket
(2)Bulb
(3)Ashtray Lamp Shield
(4)Instrument Panel
(5)Accessory Power Outlet
(6)Cigar Lighter Assembly
Figure 22:

External Components
Object Number: 310233 Size: LF
(1)Vehicle Speed Sensor
(2)Harness Connector
(3)Backup Lamp Switch Connector (Part of the Park/Neutral Position Switch)
(4)Park/Neutral Position Switch Connector
(5)Input Shaft Speed Sensor Connector
(6)Park/Neutral Position Switch
Figure 23:

Manual Transmission (Light Duty)
Object Number: 310254 Size: MF
(1)Speed Sensor
(2)Transmission Crossmember
(3)HO2 Sensor Bank 1 Sensor 2 Connector
(4)Backup Lamp Switch Connector
(5)HO2 Sensor Bank 1 Sensor 1 Connector
Figure 24:

Manual Transmission (Heavy Duty)
Object Number: 310252 Size: MF
(1)Backup Lamp Switch Connector
(2)Speed Sensor
(3)Speed Sensor Connector
(4)Backup Lamp Switch
Figure 25:

Steering Column Components
Object Number: 349986 Size: LF
(1)Hazard Button
(2)High Beams/Cruise/Wiper/Washer
(3)Cruise Control Switches
(4)Tilt Steering Actuator
(5)Inflatable Restraint Harness
(6)C201 Inline Connector