GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Grand Prix 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Harness Routing Views
Figure 1:

Forward Lamp Harness
Object Number: 1866755 Size: LF
(1)G101
(2)C143
(3)C141
(4)Front Fascia
(5)G100
(6)C142
(7)C120
(8)C144
Figure 2:

Engine Harness (L26)
Object Number: 1866689 Size: LF
(1)C126
(2)C100
(3)C101
(4)C102
(5)G112/G113
(6)C110
Figure 3:

Engine Harness (L32)
Object Number: 1866624 Size: LF
(1)C110
(2)C101
(3)C100
(4)G112\G113
(5)C104
Figure 4:

Engine Harness (LS4)
Object Number: 1866614 Size: LF
(1)C108
(2)C111
(3)C101
(4)C102
(5)C100
(6)G112/G113
(7)G115
(8)C107
(9)Fuse Block-Underhood
Figure 5:

Left Rear of Engine Compartment (L26)
Object Number: 1866685 Size: LF
(1)C104
(2)Front Fascia
(3)C125
Figure 6:

I/P Harness-Engine Compartment (L26/L32)
Object Number: 1866760 Size: LF
(1)C101
(2)Front Fascia
(3)C105
(4)C104
(5)C120
(6)Fuse Block-Underhood
Figure 7:

I/P Harness-Engine Compartment (LS4)
Object Number: 1866609 Size: LF
(1)C102
(2)C101
(3)Front Fascia
(4)C105
(5)C120
(6)Fuse Block-Underhood
Figure 8:

Left Side of I/P
Object Number: 1866586 Size: LF
(1)I/P Harness
(2)C208
(3)Body Control Module (BCM)
(4)Body Harness
(5)C290
(6)C301
(7)C250
Figure 9:

Lower Center of I/P
Object Number: 1866602 Size: LF
(1)G201
(2)G200
(3)C210
(4)C240
(5)C241
(6)Splice Pack SP205
(7)Data Link Connector (DLC)
(8)C201
(9)G202
Figure 10:

Right Side of I/P
Object Number: 1866569 Size: LF
(1)G301
(2)C200
(3)C301
(4)Fuse Block-I/P
(5)G302
Figure 11:

Center of the Passenger Compartment
Object Number: 1211267 Size: LF
(1)A/T Shift Lock Control Solenoid
(2)PRNDL Lamp
(3)C241
(4)C240
Figure 12:

Under the Floor Console
Object Number: 1230318 Size: LF
(1)S238
(2)S231
(3)Head Up Display (HUD) Switch
(4)S374
(5)Traction Control Switch
(6)Accessory Power Outlet - Front
(7)Accessory Power Outlet - Rear
Figure 13:

Left Front of the Passenger Compartment
Object Number: 1202726 Size: LF
(1)C355
(2)C290
(3)C291
(4)C208
(5)C207
(6)C301
(7)S307
(8)G301
(9)S303
Figure 14:

Right Side of the Passenger Compartment
Object Number: 1202715 Size: LF
(1)C302
(2)C200
(3)G302
(4)C356
(5)S406
Figure 15:

Passenger Compartment Inlines
Object Number: 1866520 Size: LF
(1)C313
(2)C315
(3)C356
(4)Rear Shelf
(5)C405
(6)C355
(7)C316
(8)C311
Figure 16:

Driver Door
Object Number: 1866540 Size: LF
(1)Door Lock Switch-Driver
(2)Outside Rearview Mirror Directional Switch
(3)Outside Rearview Mirror-Driver
(4)Outside Rearview Mirror LH/RH Switch
(5)Outside Rearview Mirror Connectors
(6)Speaker-LF Door Tweeter
(7)C301
(8)Speaker-LF Door
(9)C303
(10)Window Motor-Driver
(11)Window Lockout Switch
(12)Window Switches
(13)Door Latch Assembly
Figure 17:

Driver Door Trim
Object Number: 1211801 Size: LF
(1)Outside Rearview Mirror Switch
(2)Window Switch - Driver
(3)Door Lock Switch - Driver
(4)C303
(5)Speaker - LF Door Tweeter Connector
(6)S304
Figure 18:

Passenger Door
Object Number: 1866553 Size: LF
(1)Outside Rearview Mirror Connectors
(2)Outside Rearview Mirror-Front Passenger
(3)Window Switch-Front Passenger
(4)Door Lock switch-Front Passenger
(5)Door Latch Assembly
(6)Window Motor-Front Passenger
(7)C304
(8)Speaker-RF Door Tweeter
(9)Speaker-RF Door
(10)C301
Figure 19:

Front Passenger Door Trim
Object Number: 1211804 Size: LF
(1)Door Lock Switch - Front Passenger
(2)Window Switch - Front Passenger
(3)S605
(4)Speaker - RF Door Tweeter
(5)C304
Figure 20:

Rear Door Harness Components
Object Number: 1866808 Size: LF
(1)C355
(2)Window Switch-RR
(3)Door-RR
(4)Door Latch Assembly-RR
(5)Window Motor-RR
(6)C356
(7)Window Switch-LR
(8)Window Motor-LR
(9)Door Latch Assembly-LR
(10)Door-LR
Figure 21:

Front of the Passenger Compartment
Object Number: 1202720 Size: LF
(1)C315
(2)C313
(3)C311
(4)C316
(5)S314
(6)S315
Figure 22:

Under the Driver Seat
Object Number: 1215789 Size: LF
(1)Seat Adjuster Motor Assembly - Driver Connector
(2)Seat Belt Switch, Connector
(3)Front Vertical Motor
(4)Horizontal Motor
(5)Heated Seat Element - Driver Back
(6)C311
(7)Hinge
(8)C316
(9)C312
Figure 23:

Rear of the Passenger Compartment
Object Number: 1202723 Size: LF
(1)S407
(2)C405
Figure 24:

Right Side of Rear Decklid
Object Number: 1866486 Size: LF
(1)Rear Decklid
(2)C390
(3)C400
Figure 25:

Rear Exterior Lamp Inlines
Object Number: 1866481 Size: LF
(1)C404
(2)Tail Lamp - RR
(3)C402
(4)C401
(5)Tail Lamp - LR
(6)C403