Harness Routing Views. Buick Century 2003

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2003 🢒 Century 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Harness Routing Views

Figure 1:

LF of Vehicle Forward Lamp to Headlamp


(1)	Headlamp Assembly Connector - Left Shown, Right Similar
(2)	Headlamp Assembly - Left Shown, Right Similar

Figure 2:

RF of the Vehicle


(1)	Right Front Frame Rail
(2)	Horn Assembly
(3)	C103

Figure 3:

Cooling Fans


(1)	Engine Wiring Harness
(2)	C105
(3)	Cooling Fan - Right Connector
(4)	Cooling Fan Jumper Wiring Harness
(5)	Cooling Fan - Left Connector

Figure 4:

Battery Cable and Grounding Point


(1)	Battery
(2)	Fuse Block-Underhood
(3)	G100

Figure 5:

Top of Engine (RPO LG8)


(1)	C102
(2)	C108

Figure 6:

Engine (RPO L67) ICM and ECT


(1)	C110
(2)	C126

Figure 7:

RF of the Engine Compartment (L36/L67)


(1)	Camshaft Position (CMP) Sensor
(2)	Ignition Control Module (ICM) Wiring Harness
(3)	C110
(4)	Ignition Control Module (ICM)
(5)	Ignition Coils
(6)	G111
(7)	Ignition Control Module (ICM) Wiring Harness
(8)	Ignition Control Module (ICM) Wiring Harness
(9)	Crankshaft Position (CKP) Sensor

Figure 8:

Lower Rear of the Engine (L36/L67)


(1)	Knock Sensor (KS) 2
(2)	Knock Sensor (KS) 2 Connector
(3)	Knock Sensor (KS) 2 Jumper Harness
(4)	C125

Figure 9:

Lower Left Side of Engine (LG8)


(1)	A/C Compressor Clutch
(2)	Crankshaft Position (CKP) Sensor A
(3)	Knock Sensor (KS) 1
(4)	Engine Oil Pressure (EOP) Switch
(5)	Engine Wiring Harness
(6)	Starter Lead
(7)	Positive Battery Cable

Figure 10:

Lower Front of the Engine Components (L67)


(1)	Starter Solenoid B Terminal
(2)	G113
(3)	Battery Cable Wiring Harness
(4)	Engine Wiring Harness
(5)	Starter Solenoid S Terminal
(6)	Engine Oil Level Sensor
(7)	Knock Sensor (KS) 1

Figure 11:

Lower Front of the Engine Components (L36)


(1)	Starter Solenoid B Terminal
(2)	G113
(3)	Battery Cable Wiring Harness
(4)	Engine Wiring Harness
(5)	Starter Solenoid S Terminal
(6)	Engine Oil Level Sensor
(7)	Knock Sensor (KS) 1
(8)	Starter

Figure 12:

Left Side of Engine Compartment (LG8)


(1)	G111
(2)	G113
(3)	C113
(4)	Electronic Brake Control Module (EBCM) Connector (JL9/JM4)
(5)	C101
(6)	A/C Refrigerant Pressure Sensor Connector
(7)	Wheel Speed Sensor (WSS) - LF (JL9/JM4)

Figure 13:

Transmission (L36/L67)


(1)	C113
(2)	Electronic Brake Control Module (EBCM) Connector (JL9/JM4)
(3)	C101
(4)	Automatic Transmission
(5)	Engine Wiring Harness

Figure 14:

LR of the Engine Compartment


(1)	P103
(2)	I/P Wiring Harness
(3)	Cruise Control Module (CCM) Connector
(4)	Cruise Control Module (CCM) (K34)
(5)	Electronic Brake Control Module (EBCM) (JL9/JM4)
(6)	Electronic Brake Control Module (EBCM) Connector (JL9/JM4)
(7)	Engine Wiring Harness
(8)	Brake Fluid Level Switch
(9)	C101
(10)	A/C Refrigerant Pressure Sensor
(11)	Engine Wiring Harness
(12)	G171 (JL9/JM4)

Figure 15:

IP Harness Passthrough to Engine Compartment


(1)	P100

Figure 16:

Left Side of IP Harness, Near Steering Column


(1)	C207
(2)	C205
(3)	C216
(4)	C215
(5)	C201
(6)	G201

Figure 17:

Vehicle Fuel Tank


(1)	C405

Figure 18:

Upper Left of Instrument Panel


(1)	Sun Load Sensor
(2)	G203
(3)	Ambient Light Sensor

Figure 19:

Behind the Right Side of the I/P


(1)	Vacuum Reservoir
(2)	G200
(3)	Fuse Block - I/P
(4)	C200
(5)	Blower Motor
(6)	Blower Motor Resistor Assembly (CJ3)/Blower Motor Control Processor (CJ2)
(7)	P100
(8)	Vacuum Reservoir
(9)	Black Vacuum Hose
(10)	Air Temperature Actuator - Right
(11)	Automatic Headlamp Relay
(12)	Rear Compartment Lid Release Relay
(13)	Rear Window Defogger Relay
(14)	Retained Accessory Power (RAP) Relay
(15)	I/P Wiring Harness
(16)	Air Temperature Actuator - Left

Figure 20:

Behind Right Side of Instrument Panel


(1)	C206, Power Drop Connector

Figure 21:

Right Side of Instrument Panel - Front


(1)	Fuse Block - I/P
(2)	G200
(3)	C200

Figure 22:

Right Side of Instrument Panel - Rear


(1)	Park Lamp Relay
(2)	Brake to Shift Relay
(3)	P100
(4)	Fuse Block-I/P

Figure 23:

LH Side of Inflatable Restraint IP Module


(1)	C216

Figure 24:

Antenna Cable


(1)	Radio
(2)	C290

Figure 25:

Cigar Lighter Jumper Harness View


(1)	C242

Figure 26:

Center Console (D06, D55 - If Equipped)


(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 27:

LH Side of Passenger Compartment


(1)	P371
(2)	C351
(3)	Park Brake Cable
(4)	G301
(5)	C301
(6)	C303
(7)	C311
(8)	Body Wiring Harness

Figure 28:

Right Side Floor of Passenger Compartment


(1)	C352
(2)	P372
(3)	C302

Figure 29:

Lower RH A Pillar


(1)	P500
(2)	C301

Figure 30:

Lower LH A Pillar


(1)	P600
(2)	C302

Figure 31:

Cross Body Wiring


(1)	C311
(2)	Inflatable Restraint Sensing and Diagnostic Module Connector
(3)	Heated Seat Switch - Driver
(4)	Heated Seat Switch - Passenger
(5)	C312

Figure 32:

LH Pillar B


(1)	P700 LH Shown, P800 RH Similar
(2)	C351 LR Shown, RR C352 Similar

Figure 33:

Right Side Of Passenger Compartment


(1)	C405
(2)	P372

Figure 34:

Left Side of Rear Window Shelf


(1)	Cellular Antenna Connector
(2)	C404
(3)	Body Wiring Harness
(4)	C403
(5)	Navigation Antenna Connector

Figure 35:

Left Side of Rear Package Shelf, Roof/Sunroof


(1)	C398
(2)	Antenna Amplifier Connection to Rear Window Defogger (w/ RPO CF5)
(3)	C420
(4)	C399
(5)	C395
(6)	C390
(7)	Rear Window Defogger Connector, C1

Figure 36:

Left Side of Rear Compartment


(1)	Rear Compartment Courtesy Lamp
(2)	C399
(3)	C402
(4)	C410
(5)	C395
(6)	G402

Figure 37:

Right Side of Rear Compartment


(1)	Speaker Connector - RR
(2)	P425
(3)	Evaporative Emissions (EVAP) Canister Vent Solenoid Connector
(4)	C402

Figure 38:

Rear Compartment Antenna Cable


(1)	C390

Figure 39:

Rear Compartment Lid


(1)	Rear Compartment Lid Ajar Switch Connector
(2)	Rear Compartment Lid Lock Release Actuator Connector
(3)	P932
(4)	P430
(5)	C410
(6)	C915

Figure 40:

Rear of the Vehicle


(1)	C915
(2)	P915
(3)	Backup Lamp Applique