GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Firebird 🢒 Body and Accessories 🢒 Body Control System 🢒 Harness Routing Views
Figure 1:

Forward Lamp Harness Grounds
Object Number: 483599 Size: MF
(01)G106
(02)Radiator Support
(03)G105
(04)Forward Lamp Harness
Figure 2:

Rear Left Side of Engine (V6 VIN K)
Object Number: 483600 Size: MF
(1)G112
(2)Left Hand Manifold Heated 02 Sensor Connector
Figure 3:

Behind Lower Left Side of I/P
Object Number: 490630 Size: MF
(1)C212
(2)C211
(3)Traction control module
(4)P100
(5)Forward lamps harness
Figure 4:

Engine Compartment
Object Number: 490808 Size: SH
(01)P100
(02)Forward Lamp Harness
(03)Battery
(04)C102
(05)C100
(06)C105
(07)C101
(08)P110
(09)Engine Harness
Figure 5:

Left Frame Rail
Object Number: 483618 Size: MF
(1)Brake pressure modulator valve (BPMV) bracket
(2)G109 cruise control ground
(3)G109
(4)Left front frame rail
Figure 6:

Lower Right Front Side of Engine (V6 VIN K)
Object Number: 490793 Size: SH
(01)G110
Figure 7:

Lower Left Side of Engine (V6 VIN K)
Object Number: 490796 Size: SH
(01)Left Engine Mount
(02)Steering Geer
(03)G111
Figure 8:

Lower Right Side of Engine (V8 VIN G)
Object Number: 490797 Size: SH
(01)Engine Mount Bracket
(02)Battery Cable
(03)G100
Figure 9:

Lower Left Front of Engine (V8 VIN G)
Object Number: 490801 Size: SH
(01)G111
(02)Generator
Figure 10:

Lower Right Side of IP
Object Number: 490811 Size: SH
(01)C240
(02)Instrument Panel
(03)Cross Car Wiring Harness
(04)Right "A" Pillar
(05)Dash Mat
(06)C210
(07)C230
(08)C220
(09)C219
Figure 11:

Left Side of Rear Compartment (Coupe)
Object Number: 490813 Size: SH
(01)C400
(02)IP Wiring Harness
(03)G400
(04)P400
(05)RR Body Harness
Figure 12:

Lower Right Side of Engine (V6 VIN K)
Object Number: 483701 Size: SF
(01)Right Engine Mount
(02)G100
Figure 13:

Rear Fascia
Object Number: 490803 Size: SH
(01)C430
(02)Rear Fascia
Figure 14:

Seats
Object Number: 490814 Size: MF
(1)Passenger seat
(2)Driver seat
(3)C300
(4)C305
Figure 15:

Right Front Engine Compartment (Left Side Similar)
Object Number: 490805 Size: SH
(01)Forward Lamp Harness
(02)C165 Right / C160 Left
(03)Body
Figure 16:

Rear Compartment (Coupe)
Object Number: 490807 Size: SH
(01)Rear Body Harness
(02)Rear Fascia Harness
(03)P400
(04)C400
(05)IP Harness
Figure 17:

Underhood Electrical Centers
Object Number: 490809 Size: SH
(1)Left Front Wheelhouse
(2)Forward Lamp Harness
(3)G101
Figure 18:

Upper Left Rear Side of Engine (V8 VIN G)
Object Number: 483710 Size: SF
(01)Knock Sensor Connector
(02)Engine Oil Pressure Sensor
(03)Engine Harness
(04)G110
(05)G112
(06)Left Cylinder Head
Figure 19:

Right Front Engine Compartment
Object Number: 490795 Size: SH
(1)Right Front Wheelhouse
(2)G102
Figure 20:

Steering Column
Object Number: 490655 Size: MF
(1)Steering column
(2)Ignition Switch Connector C1
(3)I/P wiring harness
(4)C217
(5)Ignition key lock cylinder (Resistor Pellet) connector
(6)C218
(7)C216
(8)Forward lamp harness
(9)Ignition Switch Connector C2
(10)Ignition switch
Figure 21:

Base of Steering Column
Object Number: 483732 Size: SF
(01)Steering Column
(02)Ignition Switch
(03)Ignition Switch Connector C2
(04)C215 (Not Attached to Column)
(05)Headlamp Dimmer Switch Connector
(06)Isolation Diode (Wipers)
(07)Forward Lamp Harness
Figure 22:

Clutch Jumper Harness Combinations (V6 VIN K) Manual Transmission
Object Number: 490668 Size: MF
(1)Forward lamp harness
(2)Cruise control/clutch anticipate switch connector
(3)I/P wiring harness
(4)C270 with manual transmission with cruise control
(5)Cruise control release (Brake) switch connector
(6)C270 with manual transmission, w/o cruise control
(7)Cruise control/clutch anticipate switch connector
Figure 23:

Clutch Jumper Harness Combinations (V8 VIN G)
Object Number: 490675 Size: MF
(1)Foward lamp harness
(2)C250 with automatic transmission and cruise control
(3)Cruise control release (Brake) switch connector
(4)Cruise control (Clutch) switch connector
(5)Cruise control release (Brake) switch connector
(6)C250 With manual transmission and cruise control
(7)Forward lamp harness
Figure 24:

Chevrolet I/P Ground (Pontiac Similar)
Object Number: 490680 Size: MF
(1)G201
(2)I/P wiring harness
(3)I/P wiring harness
(4)Cross car wiring harness
(5)G200
Figure 25:

Dash Panel
Object Number: 483745 Size: SF
(01)Cross Car Harness
(02)P600
(03)Door Jamb Switch, RH Connector
(04)Power Window Control Module
(05)Door Jamb Switch, LH Connector
(06)P500
Figure 26:

Under Console, Left Side (Automatic Transmission)
Object Number: 483749 Size: SF
(01)Park Brake Switch
(02)Park Brake
(03)G202
(04)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(05)Seatbelt Switch Connector
(06)IP Wiring Harness
(07)PRNDL Lamp
(08)BTSI Connector
(09)Traction Control or Second Gear Start Switch Connector
(10)Folding Top Switch Connector
(11)Cigar Lighter Connector
(12)Auxiliary Power Connector
Figure 27:

Under Console, Left Side (Manual Transmission)
Object Number: 483750 Size: SF
(1)Park Brake Switch
(2)Park Brake
(3)G202
(4)Seat Belt Switch Connector
(5)Inflatable Restraint Sensing and Diagnostic (SDM) Module
(6)Ash Tray Lamp
(7)IP Wiring Harness
(8)Convertible Top Switch Connector
(9)Cigar Lighter Connector
(10)Traction Control Switch Connector (Pontiac)
(11)Auxiliary Power Connector
Figure 28:

Rear Left Side of I/P
Object Number: 490702 Size: MF
(1)Forward lamp harness
(2)C200D
(3)I/P wiring harness
(4)C200B
(5)C200C
(6)Cross Car Wiring Harness
(7)C200A
Figure 29:

Left Rocker Panel
Object Number: 490706 Size: MF
(1)Number 2 Floor Pan Rail
(2)I/P wiring harness
(3)C310
(4)Number 3 floor pan rail
(5)G305
(6)Rocker panel
Figure 30:

Outside Left of Rear Floor Pan, Forward of Rear Axle
Object Number: 490719 Size: MF
(1)C405B
(2)I/P wiring harness
(3)C405C
(4)Rear wheel speed sensor harness
Figure 31:

Underside of Rear Compartment Lid (Coupe)
Object Number: 490726 Size: MF
(1)Rear defogger grid connector (Left Side)
(2)C420
(3)Rear defogger grid connector (Right Side)
(4)Hatch harness
(5)P300
Figure 32:

Center Rear of Roof Panel
Object Number: 483756 Size: SF
(01)Hatch Wiring Harness
(02)IP Wiring Harness
(03)G310
(04)C330
(05)Roof Panel
(06)Dome Lamp Connector
Figure 33:

Underside of Rear Compartment Lid (Pontiac Convertible)
Object Number: 483758 Size: SF
(01)CHMSL Harness
(02)C420
(03)IP Wiring Harness
(04)Deck Lid
Figure 34:

Underside of Rear Compartment Lid (Chevrolet Convertible)
Object Number: 483763 Size: SF
(01)CHMSL Wiring Harness
(02)C420
(03)IP Wiring Harness
(04)Deck Lid
Figure 35:

Inside Rear Convertible Top
Object Number: 478269 Size: SF
(01)C320
(02)Folding Top Glass