Buick Lucerne Super 2008 - 2008 GENERAL MOTORS Lucerne

Buick Lucerne Super 2008 - BUZZERS, RELAYS & TIMERS

Buick Lucerne Super 2008 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C (Relay R11)	In underhood fuse block. See Fig. 75.
AIR PUMP (Relay R9)	In underhood fuse block. See Fig. 75.
AIR/SOL (Relay R12)	In underhood fuse block. See Fig. 75.
COOL/FAN (Relay R2)	In underhood fuse block. See Fig. 75.
COOL/FAN 1 (Relay R1)	In underhood fuse block. See Fig. 75.
COOL/FAN 2 (Relay R7)	In underhood fuse block. See Fig. 75.
CRNK (Relay R3)	In underhood fuse block. See Fig. 75.
DR LCK (Relay R9)	In rear fuse block. See Fig. 76.
DR UNLATCH (Relay R8)	In rear fuse block. See Fig. 76.
DR UNLCK (Relay R10)	In rear fuse block. See Fig. 76.
ELC CMPRSR (Relay R15)	In rear fuse block. See Fig. 76.
FRT HVAC BLWR (Relay R5)	In rear fuse block. See Fig. 76.
FUEL/PUMP (Relay R7)	In rear fuse block. See Fig. 76.
OVRHD LAMPS (Relay R11)	In rear fuse block. See Fig. 76.
PRK LAMP (Relay R2)	In rear fuse block. See Fig. 76.
PWR/TRAIN (Relay R4)	In underhood fuse block. See Fig. 75.
RAP (Relay R1)	In rear fuse block. See Fig. 76.
REAR DEFOG (Relay R14)	In rear fuse block. See Fig. 76.
RT PRK LAMP (Relay R4)	In rear fuse block. See Fig. 76.
RUN/CRNK (Relay R6)	In underhood fuse block. See Fig. 75.
RUN (Relay R3)	In rear fuse block. See Fig. 76.
SPARE (Relay R5)	In underhood fuse block. See Fig. 75.
SPARE (Relay R13)	In rear fuse block. See Fig. 76.
STOP LAMPS (Relay R12)	In rear fuse block. See Fig. 76.
TRUNK RELSE (Relay R6)	In rear fuse block. See Fig. 76.
WPR HI (Relay R10)	In underhood fuse block. See Fig. 75.
WPR (Relay R8)	In underhood fuse block. See Fig. 75.

Buick Lucerne Super 2008 - CIRCUIT PROTECTION DEVICES

Buick Lucerne Super 2008 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Fuse Block - Rear	Below left side of rear seat. See Fig. 33.
Fuse Block - Underhood	On right front of engine compartment, forward of strut tower. See Fig. 53.

Buick Lucerne Super 2008 - CONTROL UNITS

Buick Lucerne Super 2008 CONTROL UNITS LOCATION

Component	Location
Automatic Level Control Module (FE1, FE3, F41)	Forward of left rear tire, on lower control arm.
Blower Motor Control Module	Near blower motor. See Fig. 38.
Body Control Module (BCM)	Right of glove box. See Fig. 15.
Climate Control Seat Module (CCSM)	Mounted below the front passenger seat cushion.
Electronic Brake Control Module (EBCM)	Left front corner of engine compartment. See Fig. 1.
Electronic Suspension Control (ESC) Module	Behind right wheelwell. See Fig. 9.
Engine Control Module (ECM)	Left side of engine compartment. See Fig. 24.
Ignition Coil/Module 1 (4.6L) (16)	Top right side of engine. See Fig. 28.
Ignition Coil/Module 2 (4.6L) (11)	Top left side of engine. See Fig. 28.
Ignition Coil/Module 3 (4.6L) (17)	Top right side of engine. See Fig. 28.
Ignition Coil/Module 4 (4.6L) (10)	Top left side of engine. See Fig. 28.
Ignition Coil/Module 5 (4.6L) (19)	Top right side of engine. See Fig. 28.
Ignition Coil/Module 6 (4.6L) (7)	Top left side of engine. See Fig. 28.
Ignition Coil/Module 7 (4.6L) (21)	Top right side of engine. See Fig. 28.
Ignition Coil/Module 8 (4.6L) (5)	Top left side of engine. See Fig. 28.
Ignition Control Module	At left front of engine, under ignition coils. See Fig. 23.
Inflatable Restraint I/P Module	Right side of dash. See Fig. 46.
Inflatable Restraint Passenger Presence System (PPS) Module	Under front passenger's seat. See Fig. 48.
Inflatable Restraint Roof Rail Module (Left)	Left roof rail. See Fig. 45.
Inflatable Restraint Roof Rail Module (Right)	Right roof rail. See Fig. 45.
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Under center console.
Inflatable Restraint Side Impact Module (Left)	Left side of driver's seat back. See Fig. 49.
Inflatable Restraint Side Impact Module (Right)	Right side of front passenger's seat back. See Fig. 48.
Inflatable Restraint Steering Wheel Module	In steering wheel. See Fig. 46.
Memory Seat Module	On underside of driver's seat, on seat adjuster frame. See Fig. 49.
Object Alarm Module (UFR)	On right rear wheelwell. See Fig. 43.
Powertrain Control Module (PCM) (3.8L)	Left front of engine compartment, inside air cleaner housing.
Remote Control Door Lock Receiver (RCDLR)	Under center of rear package shelf. See Fig. 14.
Seat Back Ventilation Heat & Cool Module (Driver) Round Module	Right side of driver's seat back. See Fig. 49.
Seat Back Ventilation Heat & Cool Module (Passenger) Round Module	Right side of Passenger's seat back.
Seat Cushion Ventilation Heat & Cool Module (Driver) Round Module	In driver's seat cushion. See Fig. 49.
Seat Cushion Ventilation Heat & Cool Module (Passenger) Round Module	In passenger's seat cushion.
Sunroof Control Module	Rear of sunroof opening. See Fig. 45.
Theft Deterrent Module (TDM)	In steering column. See Fig. 30.
Throttle Actuator Control (TAC) Module	On throttle body assembly. See Fig. 21.
Transmission Control Module (TCM) (4.6L)	Left rear of engine compartment.
Vehicle Communication Interface Module (VICM)	On right front of trunk, attached to seat back brace. See Fig. 14.
Windshield Heated Washer Fluid Module	Right side of firewall. See Fig. 51.

Buick Lucerne Super 2008 - MOTORS

Buick Lucerne Super 2008 MOTORS LOCATION

Component	Location
Air Temperature Actuator	Right side of HVAC module. See Fig. 38.
Air Temperature Actuator (Driver)	Left side of HVAC module. See Fig. 39.
Air Temperature Actuator (Front Passenger)	Right side of HVAC module. See Fig. 39.
Blower Motor	Behind right side of dash. See Fig. 38.
Cooling Fan (Left)	On left rear side of radiator. See Fig. 29.
Cooling Fan (Right)	On right rear side of radiator. See Fig. 29.
Door Latch Assembly (Driver)	Rear of driver's door. See Fig. 16.
Door Latch Assembly (Front Passenger)	Rear of front passenger's door. See Fig. 17.
Door Latch Assembly (Left Rear)	Rear of left rear door. See Fig. 18.
Door Latch Assembly (Right Rear)	Rear of right rear door. See Fig. 19.
Fuel Pump & Sender Assembly	Top of fuel tank. See Fig. 25.
Mode Actuator	On right side of HVAC module. See Fig. 38.
Outside Rear View Mirror (Driver)	In driver's door. See Fig. 16.
Outside Rear View Mirror (Front Passenger)	In front passenger's door. See Fig. 17.
Rear Compartment Lid Latch	Center rear of luggage compartment. See Fig. 12.
Recirculation Actuator	Behind right side of dash, right of blower motor. See Fig. 38.
Seat Adjuster Motor Assembly (Driver)	Below driver seat. See Fig. 49.
Seat Adjuster Motor Assembly (Front Passenger)	Below front passenger's seat. See Fig. 48.
Seat Lumbar Massage Motor (Driver)	In driver's seat back. See Fig. 49.
Seat Lumbar Motor (Driver)	In driver's seat back. See Fig. 49.
Seat Recline Motor (Driver)	In driver's seat back. See Fig. 49.
Secondary Air Injection (AIR) Pump (4.6L)	Lower left front of engine compartment.
Starter Motor	Lower left rear of engine. See Fig. 23.
Starter (1)	Top rear of engine. See Fig. 28.
Sunroof Motor	Rear of sunroof opening. See Fig. 45.
Telescoping Actuator	On steering column assembly.
Tilt Actuator	On steering column.
Variable Effort Steering Actuator	Left rear of engine compartment. See Fig. 2.
Window Motor (Driver)	In driver's door. See Fig. 16.
Window Motor (Front Passenger)	In front passenger's door. See Fig. 17.
Window Motor (Left Rear)	In left rear door. See Fig. 18.
Window Motor (Right Rear)	In right rear door. See Fig. 19.
Windshield Washer Fluid Pump	Bottom of windshield washer fluid reservoir. See Fig. 51.
Windshield Wiper Motor	On left side of firewall. See Fig. 51.

Buick Lucerne Super 2008 - SENDING UNITS & SENSORS

Buick Lucerne Super 2008 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Position (APP) Sensor	Top of accelerator pedal assembly. See Fig. 4.
A/C Refrigerant Pressure Sensor	Near A/C compressor, on hose assembly. See Fig. 37.
Air Temperature Sensor (Inside)	Under left side of dash, left of steering column. See Fig. 3.
Ambient Air Temperature Sensor	On center front of engine compartment, on hood latch brace.
Ambient Light Sensor	Center of dash, in defroster deflector.
Automatic Transmission Fluid Temperature (TFT) Sensor	In transmission. See Fig. 11.
Automatic Transmission Input Shaft Speed (A/T ISS) Sensor Assembly	In transmission. See Fig. 10.
Automatic Transmission Input (Shaft) Speed Sensor (ISS)	In transmission. See Fig. 11.
Battery Current Sensor	Below right side of rear seat. See Fig. 33.
Brake Pedal Position Sensor	Top of brake pedal assembly. See Fig. 4.
Camshaft Position (CMP) Sensor (3.8L)	On right front of engine. See Fig. 21.
Camshaft Position (CMP) Sensor (4.6L) (15)	On right front of engine. See Fig. 28.
Crankshaft Position (CKP) Sensor (3.8L)	On left front of engine, next to crankshaft balancer. See Fig. 21.
Crankshaft Position (CKP) Sensor (4.6L) (13)	Top center of engine. See Fig. 28.
Engine Coolant Temperature (ECT) Sensor (3.8L)	Left rear of engine. See Fig. 23.
Engine Coolant Temperature (ECT) Sensor (4.6L)	Right rear of engine. See Fig. 26.
Engine Oil Pressure (EOP) Sensor (3.8L)	Near oil filter. See Fig. 21.
EVAP Temperature Sensor	Left of blower motor. See Fig. 38.
Fuel Tank Pressure (FTP) Sensor	On top of fuel tank.
Fuel Tank Pressure (FTP) Sensor Connector	On fuel pump & sender assembly. See Fig. 25.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1	On right exhaust manifold. See Fig. 26.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1	In left exhaust manifold. See Fig. 27.
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2	On exhaust system, rear of catalytic converter. See Fig. 26.
Heated Oxygen Sensor (HO2S) 1	On right exhaust manifold. See Fig. 22.
Heated Oxygen Sensor (HO2S) 2 (3.8L)	Under vehicle, after catalytic converter.
Heated Oxygen Sensor (HO2S) 2 (4.6L)	In exhaust, after catalytic converter.
Inflatable Restraint Front End Sensor (Left)	Left front of engine compartment. See Fig. 29.
Inflatable Restraint Front End Sensor (Right)	Right front of engine compartment. See Fig. 29.
Inflatable Restraint Passenger Presence System (PPS) Sensor	Under right side of front passenger's seat. See Fig. 48.
Inflatable Restraint Passenger Seat Belt Tension Retractor Sensor (Left/Right)	Bottom of respective "B" pillar. See Fig. 47.
Inflatable Restraint Seat Position Sensor (SPS) (Right)	On front passenger's seat left seat rail. See Fig. 48.
Inflatable Restraint Side Impact Sensor (Left/Right)	Base of respective "B" pillar. See Fig. 45.
Input Speed Sensor	Inside automatic transmission.
Knock Sensor (KS) 1 (3.8L)	On left side of engine, near starter. See Fig. 23.
Knock Sensor (KS) 1 (4.6L)	Top right side of engine.
Knock Sensor (KS) 2 (3.8L)	On right side of engine, below exhaust manifold. See Fig. 22.
Knock Sensor (KS) 2 (4.6L) (8)	Top left side of engine. See Fig. 28.
Manifold Absolute Pressure (MAP) Sensor (3.8L)	On top front of engine. See Fig. 21.
Manifold Absolute Pressure (MAP) Sensor (4.6L) (2)	On top rear of engine. See Fig. 28.
Mass Airflow (MAF)/Intake Air Temperature (IAT) Sensor	Left side of engine compartment, in air intake tube.
Object Alarm Sensor (Left Rear Corner)	On left corner of rear bumper fascia. See Fig. 36.
Object Alarm Sensor (Left Rear Middle)	On left middle of rear bumper fascia. See Fig. 36.
Object Alarm Sensor (Right Rear Corner)	On right corner of rear bumper fascia. See Fig. 36.
Object Alarm Sensor (Right Rear Middle)	On right middle of rear bumper fascia. See Fig. 36.
Outside Moisture Sensor	Above rearview mirror on windshield. See Fig. 52.
Steering Angle Sensor	Base of steering column. See Fig. 30.
Sunload Twilight Sensor	Top center of dash. See Fig. 3.
Suspension Position Sensor (Left Front)	On shock absorber assembly. See Fig. 20.
Suspension Position Sensor (Left Rear)	On left rear frame rail. See Fig. 8.
Suspension Position Sensor (Right Front)	On shock absorber assembly. See Fig. 20.
Suspension Position Sensor (Right Rear)	On right rear frame rail. See Fig. 8.
Transmission Fluid Temperature (TFT) Sensor	In transmission. See Fig. 10.
Vehicle Speed Sensor (VSS)	In transmission. See Fig. 11.
Vehicle Speed Sensor (VSS) Assembly	In lower right rear of engine compartment, on transaxle. See Fig. 10.
Wheel Speed Sensor (WSS) (Left Front)	On left front brake assembly, on back of hub. See Fig. 6.
Wheel Speed Sensor (WSS) (Left Rear)	On left rear brake assembly, on back of hub. See Fig. 7.
Wheel Speed Sensor (WSS) (Right Front)	On right front brake assembly, on back of hub. See Fig. 6.
Wheel Speed Sensor (WSS) (Right Rear)	On right rear brake assembly, on back of hub. See Fig. 7.
Yaw & Lateral Acceleration Sensor	On floor pan, left of center console. See Fig. 5.

Buick Lucerne Super 2008 - SOLENOIDS & SOLENOID VALVES

Buick Lucerne Super 2008 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch	On A/C compressor. See Fig. 31.
A/T Shift Lock Control Solenoid	Base of floor shifter assembly. See Fig. 44.
Evaporative Emission (EVAP) Canister Vent Solenoid Valve	Below rear of vehicle, on EVAP canister. See Fig. 25.
Evaporative Emissions (EVAP) Canister Purge Solenoid Valve	On top right rear of engine. See Fig. 22.
Exhaust Gas Recirculation (EGR) Valve (3.8L)	On top right rear of engine. See Fig. 22.
Exhaust Gas Recirculation (EGR) Valve (4.6L)	On top right rear of engine. See Fig. 54.
Fuel Injectors 1, 3 & 5 (3.8L)	Top left side of engine. See Fig. 23.
Fuel Injectors 2, 4 & 6 (3.8L)	Top right side of engine. See Fig. 22.
Fuel Injector 1 (4.6L) (18)	Top right side of engine. See Fig. 28.
Fuel Injector 2 (4.6L) (12)	Top left side of engine. See Fig. 28.
Fuel Injector 3 (4.6L) (20)	Top right side of engine. See Fig. 28.
Fuel Injector 4 (4.6L) (9)	Top left side of engine. See Fig. 28.
Fuel Injector 5 (4.6L) (22)	Top right side of engine. See Fig. 28.
Fuel Injector 6 (4.6L) (6)	Top left side of engine. See Fig. 28.
Fuel Injector 7 (4.6L) (23)	Top right side of engine. See Fig. 28.
Fuel Injector 8 (4.6L) (4)	Top left side of engine. See Fig. 28.
Pressure Control (PC) Solenoid Valve Assembly	In transmission. See Fig. 10.
Pressure Control Solenoid (PCS) Valve	In transmission. See Fig. 11.
Reverse Lockout Solenoid	Base of floor shifter assembly. See Fig. 44.
Secondary Air Injection (AIR) Check Valve (4.6L)	Top center of rear camshaft cover.
Starter Solenoid (3.8L)	Lower left rear of engine. See Fig. 23.
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly	Inside transmission. See Fig. 10.
Torque Converter Clutch (TCC) Solenoid Valve	In transmission. See Fig. 11.
1-2 & 2-3 Shift Solenoid (1-2 SS) (2-3 SS) Valves	In transmission. See Fig. 11.
1-2, 3-4 Shift Solenoid (SS) Valve Assembly	In transmission. See Fig. 10.
2-3 Shift Solenoid (SS) Valve Assembly	In transmission. See Fig. 10.

Buick Lucerne Super 2008 - SWITCHES

Buick Lucerne Super 2008 SWITCHES LOCATION

Component	Location
Brake Fluid Level Switch	On master cylinder reservoir. See Fig. 1.
Engine Oil Level Switch (3.8L)	Left side of oil pan. See Fig. 23.
Engine Oil Level Switch (4.6L)	Left side of oil pan. See Fig. 32.
Engine Oil Pressure (EOP) Switch	Near oil filter. See Fig. 27.
Hood Ajar Switch	Center front of engine compartment. See Fig. 41.
Internal Mode Switch (IMS)	In transmission. See Fig. 11.
Lever Assembly-Manual Shaft Detent With Shift Position Switch - Internal Mode Switch (IMS)	In transmission. See Fig. 10.
Park Brake Switch	On top of park brake assembly. See Fig. 4.
Seat Belt Switch Connector (Driver)	In left front seat buckle assembly. See Fig. 50.
Tilt/Telescope Switch	On steering column.
Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly	In transmission. See Fig. 10.
Transmission Internal Mode Switch	Inside transmission.
Windshield Washer Fluid Level Switch	Bottom of windshield washer fluid reservoir. See Fig. 51.

Buick Lucerne Super 2008 - MISCELLANEOUS

Buick Lucerne Super 2008 MISCELLANEOUS LOCATION

Component	Location
Amplifier	Mounted to left rear of rear seat. See Fig. 14.
Automatic Level Control (ALC) Compressor	Rear underside of vehicle. See Fig. 8.
Battery	Below rear seat. See Fig. 33.
Battery Negative Ground	Bolted to left side of engine block. See Fig. 32.
Cellular Microphone	In overhead console. See Fig. 13.
Cellular Navigation & Digital Radio Antenna	Center rear of roof. See Fig. 36.
Data Link Connector (DLC)	Under left side of dash. See Fig. 3.
Digital Radio Receiver (DRR)	At left "D" pillar. See Fig. 35.
Engine Coolant Heater	Left side of engine. See Fig. 31.
Garage Door Opener Transmitter	In overhead console. See Fig. 13.
Generator (3.8L)	Top right front of engine. See Fig. 31.
Generator (4.6L)	Top left front of engine. See Fig. 32.
Global Positioning System (GPS) Antenna	Under top center of dash. See Fig. 42.
Horn Assembly	Left front of engine compartment. See Fig. 40.
Inflatable Restraint Steering Wheel Module Coil	Top of steering column. See Fig. 30.
Noise Compensation Microphone	In overhead console. See Fig. 13.
Radio Antenna Module	At right "D" pillar. See Fig. 34.
Rear Window Antenna	At right "D" pillar. See Fig. 34.
Roof Rail Airbag (Left	Left center of roof. See Fig. 45.
Roof Rail Airbag (Right)	Right center of roof. See Fig. 45.
Suspension Damper (Left Front)	On left front shock absorber assembly. See Fig. 20.
Suspension Damper (Left Rear)	On left rear shock absorber assembly. See Fig. 8.
Suspension Damper (Right Front)	On right front shock absorber assembly. See Fig. 20.
Suspension Damper (Right Rear)	On right rear shock absorber assembly. See Fig. 8.

Buick Lucerne Super 2008 - CONNECTORS

Buick Lucerne Super 2008 CONNECTORS LOCATION

Component	Location
X100 (Dark Gray, 4 Pin) (2)	Left rear of engine compartment. See Fig. 64.
X108 (Black, 1 Pin)	Rear of engine compartment.
X109 (Black, 2 Pin)	Left front corner of engine.
X110 (Black, 8 Pin)	Right front of engine.
X111 (Black, 38 Pin) (3)	Left rear of engine compartment. See Fig. 64.
X113 (Black, 6 Pin) (1)	Left front corner of vehicle. See Fig. 60.
X114 (Black, 6 Pin) (6)	Right front corner of vehicle. See Fig. 60.
X120 (Black, 10 Pin) (4)	Right front corner of vehicle. See Fig. 60.
X121 (Black, 12 Pin)	Near front of vehicle.
X124 (Black, 1 Pin) (11)	Under right rear seat. See Fig. 65.
X138 (Black, 10 Pin) (4)	Rear of engine. See Fig. 62.
X139 (Black, 7 Pin) (4)	Top left rear of engine. See Fig. 61.
X140 (Black, 7 Pin) (8)	Top right front of engine. See Fig. 62.
X161 (Dark Gray, 2 Pin) (7)	Rear of engine. See Fig. 62.
X200 (Black, 43 Pin) (18)	Behind right end of dash. See Fig. 63.
X201 (Black, 43 Pin) (10)	Behind right end of dash. See Fig. 63.
X202 (Brown, 16 Pin) (26)	Under front of floor console. See Fig. 65.
X203 (Black, 40 Pin) (11)	Behind center of dash. See Fig. 63.
X205 (Light Gray, 40 Pin) (27)	Under center of dash. See Fig. 65.
X206 (White, 6 Pin) (32)	Behind right side of dash. See Fig. 65.
X207 (Yellow, 4 Pin)	At base of steering column.
X208 (Gray, 6 Pin) (1)	Behind right end of dash. See Fig. 63.
X211 (4 Pin)	Under steering wheel.
X216 (Yellow, 4 Pin)	Behind left lower knee bolster, near X217.
X217 (Yellow, 4 Pin)	At base of steering column.
X219 (Black, 3 Pin) (7)	Behind center of dash. See Fig. 63.
X240 (Black, 4 Pin)	Inside center of steering wheel.
X276 (White, 10 Pin)	At base of steering column.
X277 (White, 10 Pin)	In steering wheel, behind inflatable restraint steering wheel module.
X300 (14 Pin)	Left kick panel.
X301 (14 Pin) (5)	Right kick panel. See Fig. 65.
X304 (Yellow, 2 Pin)	In roof headliner.
X304 (Yellow, 2 Pin)	Behind left rear pillar trim.
X305 (Yellow, 2 Pin)	In roof headliner.
X308 (Gray, 4 Pin)	At rear underside of vehicle.
X309 (Black, 7 Pin)	Near fuel tank.
X311 (2 Pin)	Left side of passenger compartment.
X312 (Yellow, 2 Pin)	Right side of passenger compartment.
X314 (Black, 43 Pin) (8)	Under front passenger's seat. See Fig. 65.
X315 (Black, 43 Pin)	Under driver's seat.
X316 (Yellow, 4 Pin) (25)	Under front of floor console. See Fig. 65.
X318 (4 Pin)	In left front seat back.
X319 (4 Pin)	In driver's seat back.
X321 (Black, 38 Pin) (11)	Left side of luggage compartment. See Fig. 66.
X325 (Gray, 30 Pin) (6)	Right kick panel. See Fig. 65.
X326 (Black, 30 Pin) (7)	Right kick panel. See Fig. 65.
X328 (Black/Natural, 34 Pin)	Left rear of passenger compartment.
X330 (Black/Natural, 34 Pin)	Right rear of passenger compartment.
X340 (Black, 14 Pin) (21)	Under front of floor console. See Fig. 65.
X341 (Black, 14 Pin)	Lower front of center console.
X351 (Black, 2 Pin)	In left front seat back.
X352 (Black, 2 Pin)	In left front seat back.
X354 (Light Gray, 4 Pin)	In right front seat back.
X397 (Light Gray, 3 Pin) (2)	Top of right rear wheelwell. See Fig. 66.
X399 (Light Gray, 10 Pin)	Top of right "C" pillar.
X445 (Black, 18 Pin) (15)	Top of left rear wheelwell. See Fig. 66.
X492 (Gray, 3 Pin) (6)	Right rear of luggage compartment. See Fig. 66.
X493 (Gray, 3 Pin) (7)	Left rear of luggage compartment. See Fig. 66.
X494 (Black, 10 Pin) (1)	Behind right side of rear bumper. See Fig. 74.
X495 (Black, 2 Pin)	Rear of vehicle.
X497 (Light Gray, 6 Pin)	In luggage compartment.
X498 (Gray, 4 Pin) (8)	Left rear corner of vehicle. See Fig. 66.
X499 (Gray, 4 Pin) (4)	Right rear of luggage compartment. See Fig. 66.
X500 (14 Pin)	In left front door jamb.
X501 (Black, 38 Pin) (2)	In driver's door. See Fig. 67.
X600 (Light Blue, 14 Pin)	In right front door jamb.
X601 (Black, 38 Pin) (2)	In front passenger's door. See Fig. 68.
X700 (Black, 12 Pin) (2)	In left rear door. See Fig. 69.
X710 (Black/White, 17 Pin)	In left door jamb.
X800 (Black, 12 Pin) (2)	In right rear door. See Fig. 70.
X810 (Black/White, 17 Pin)	In right door jamb.
X900 (Gray, 3 Pin)	At right rear of rear compartment lid.
X901 (Gray, 3 Pin)	At left rear of rear compartment lid.

Buick Lucerne Super 2008 - GROUNDS

Buick Lucerne Super 2008 GROUNDS LOCATION

Component	Location
G100	Below exhaust gas recirculation (EGR) valve. See Fig. 54.
G101	Left front corner of engine compartment. See Fig. 55.
G104 (3)	Right front corner of engine compartment. See Fig. 53.
G110	Ground strap to generator.
G111	In engine compartment, ground strap to right frame rail.
G112	Lower left rear of engine. See Fig. 56.
G114	Lower left rear of engine. See Fig. 56.
G115	Lower left rear of engine. See Fig. 56.
G300	Under driver's seat. See Fig. 59.
G301	Under left rear seat.
G302	Under right front passenger's seat. See Fig. 59.
G303	Below right side of rear seat. See Fig. 33.
G304	Under right front passenger's seat. See Fig. 59.
G305	Under driver's seat. See Fig. 59.
G306	At left "C" pillar. See Fig. 57.
G307	At right "C" pillar. See Fig. 58.
G402 (9)	Left rear of luggage compartment. See Fig. 66.
G403	Right front wall of luggage compartment. See Fig. 58.

Buick Lucerne Super 2008 - SPLICES

Buick Lucerne Super 2008 SPLICES LOCATION

Component	Location
JX100	In front of engine compartment.
JX300	In passenger compartment, under rear seat, near rear fuse block. See Fig. 33.
J100 (3)	In engine harness, approximately 80 cm (31 in) from underhood fuse block connector C3. See Fig. 61.
J102 (5)	In engine harness, approximately 7 cm (4 in) from branch for X139, toward breakout for X138. See Fig. 62.
J104	In engine harness, approximately 13 cm (5 in) from breakout for X138.
J105 (5)	In engine harness, approximately 14 cm (6 in) from branch for throttle body assembly. See Fig. 61.
J106 (6)	In engine harness, approximately 7 cm (3 in) from branch for throttle body assembly. See Fig. 61.
J107	In forward lamp harness, approximately 8 cm (4 in) from branch for distance sensing cruise control module.
J108	In engine harness, approximately 10 cm (4 in) from breakout for automatic transmission.
J109	In engine harness, approximately 3 cm (1 in) from branch for X139.
J110 (3)	In engine harness, approximately 6 cm (2 in) from branch for engine coolant temperature (ECT) sensor. See Fig. 62.
J111 (2)	In engine harness, approximately 41 cm (16 in) from underhood fuse block connector C3. See Fig. 61.
J113 (13)	In engine harness, approximately 53 cm (21 in) from left front wheel speed sensor. See Fig. 61.
J114 (12)	In engine harness, approximately 47 cm (19 in) from right front wheel speed sensor. See Fig. 61.
J115 (10)	In engine harness, approximately 59 cm (24 in) from left front wheel speed sensor. See Fig. 62.
J116 (9)	In engine harness, approximately 53 cm (21 in) from right front wheel speed sensor. See Fig. 62.
J122	In forward lamp harness, approximately 7 cm (3 in) from breakout for horn assembly.
J123	In forward lamp harness, approximately 36 cm (14 in) from X114.
J124 (5)	In forward lamp harness, approximately 26 cm (11 in) from X114. See Fig. 60.
J125 (7)	In forward lamp harness, approximately 8 cm (4 in) from breakout for X120. See Fig. 60.
J126 (5)	In body harness, approximately 60 cm (24 in) from left front strut actuator. See Fig. 64.
J127	In body harness, approximately 65 cm (25 in) from left front strut actuator.
J128 (1)	In body harness, approximately 60 cm (24 in) from right front strut actuator. See Fig. 64.
J129 (9)	In body harness, approximately 65 cm (25 in) from right front strut actuator. See Fig. 64.
J131	In even bank ignition coil harness, between X139 & ignition coil/module 8.
J133	In even bank ignition coil harness, between X139 & ignition coil/module 2.
J135	In even bank ignition coil harness, between X139 & ignition coil/module 8.
J142	In odd bank ignition coil harness, between X140 & ignition coil/module 7.
J146	In odd bank ignition coil harness, between X140 & ignition coil/module 7.
J200 (6)	In I/P harness, approximately 6 cm (2 in) from branch for HVAC module. See Fig. 63.
J201	In steering column harness, between X203 & ignition switch connector.
J202 (3)	In I/P harness, approximately 7 cm (3 in) from branch for hazard lamp switch. See Fig. 63.
J203 (12)	In I/P harness, approximately 36 cm (14 in) from breakout for HVAC module. See Fig. 63.
J204	In steering column harness, between X205 & turn signal/multifunction switch connector C4.
J205	In HVAC harness, between X206 & blower motor control module.
J206 (2)	In I/P harness, approximately 10 cm (4 in) from breakout for I/P compartment lamp. See Fig. 63.
J207 (8)	In I/P harness, approximately 17 cm (7 in) from data link connector. See Fig. 63.
J208 (9)	In I/P harness, approximately 12 cm (5 in) from data link connector. See Fig. 63.
J209	In HVAC harness between X206 & blower motor control module.
J210 (5)	In I/P harness, approximately 41 cm (16 in) from branch for hazard lamp switch. See Fig. 63.
J211 (16)	In I/P harness, approximately 28 cm (11 in) from breakout for body control module connector. See Fig. 63.
J212 (4)	In I/P harness, approximately 21 cm (8 in) from branch for hazard lamp switch, toward branch for HVAC module. See Fig. 63.
J213 (13)	In I/P harness, approximately 13 cm (5 in) from breakout for HVAC module. See Fig. 63.
J214	In I/P harness, approximately 17 cm (6 in) from breakout for body control module connector.
J219	In steering column harness, between horn switch & inflatable restraint steering wheel module coil.
J220	In steering column harness, between cruise control on/off switch & inflatable restraint steering wheel module coil.
J221	In ashtray harness, approximately 8 cm (3 in) from breakout for cigar lighter.
J222	In I/P harness, approximately 15 cm (6 in) from X201.
J223	In I/P harness, approximately 15 cm (6 in) from breakout for radio coax connector.
J224	Inside of heated steering wheel.
J225	Inside of heated steering wheel.
J226	In HVAC harness, between HVAC control module & mode motors.
J227	In HVAC harness, between evaporator temperature sensor & X202.
J228	In HVAC harness, between auxiliary blower motor control module & auxiliary blower motor.
J229 (14)	In IP harness, between X201 & X202. See Fig. 63.
J301	In body harness, approximately 14 cm (6 in) from breakout for yaw & lateral acceleration sensor.
J302 (15)	In body harness, approximately 19 cm (8 in) from breakout for G301. See Fig. 65.
J303	In body harness, between rear fuse block & video display.
J305 (4)	In left front seat harness, approximately 8 cm (4 in) from breakout for inflatable restraint seat position sensor. See Fig. 71.
J306 (6)	In right front seat harness, approximately 7 cm (3 in) from breakout for passenger seat belt switch. See Fig. 72.
J307	In center console harness, approximately 6 cm (2 in) from breakout for A/T shift lock control solenoid.
J312 (5)	In headliner harness, approximately 10 cm (4 in) from branch for X321. See Fig. 73.
J314	In body harness, approximately 9 cm (4 in) from breakout for G301.
J315	In center console harness, approximately 10 cm (4 in) from breakout for A/T shift lock control solenoid.
J316 (3)	In body harness, approximately 5 cm (2 in) from breakout for electronic suspension control module. See Fig. 66.
J317 (18)	In body harness, approximately 64 cm (26 in) from branch for battery current sensor. See Fig. 66.
J322	In right front seat harness, approximately 7 cm (3 in) from breakout for passenger seat adjuster switch, toward X314.
J323 (17)	In body harness, approximately 15 cm (6 in) from branch for rear fuse block. See Fig. 66.
J324 (1)	In body harness, approximately 5 cm (2 in) from breakout for right inflatable restraint roof rail module. See Fig. 66.
J325	In body harness, approximately 7 cm (3 in) from breakout for battery current sensor.
J326	In body harness, approximately 12 cm (5 in) from breakout for battery current sensor.
J328 (3)	In headliner harness, approximately 20 cm (8 in) from branch for X321. See Fig. 73.
J329	In body harness, approximately 14 cm (6 in) from breakout for X325.
J330	In headliner harness, between sunroof control module & X397.
J331	In I/P harness, between body control module & front door courtesy lamps.
J333 (17)	In body harness, approximately 35 cm (14 in) from breakout for left inflatable restraint side impact sensor. See Fig. 65.
J334	In headliner harness, approximately 10 cm (4 in) from breakout for right front vanity mirror lamp.
J335	In body harness, approximately 31 cm (12 in) from branch for X314.
J336	In body harness, approximately 19 cm (8 in) from breakout for yaw & lateral acceleration sensor.
J337 (3)	In body harness, approximately 15 cm (6 in) from branch for battery current sensor. See Fig. 65.
J338	In sunroof harness, between X399 & sunroof control module.
J343 (9)	In body harness, approximately 9 cm (3 in) from branch for X314. See Fig. 65.
J347	In left front seat harness, approximately 8 cm (4 in) from inline connector X315.
J348 (8)	In right front seat harness, approximately 114 cm (45 in) from passenger seat adjuster switch connector. See Fig. 72.
J349 (10)	In left front seat harness, approximately 8 cm (4 in) from breakout for auxiliary power outlet connector. See Fig. 71.
J350	In body harness, approximately 7 cm (3 in) from branch for X315.
J351 (9)	In left front seat harness, approximately 14 cm (6 in) from breakout for driver seat adjuster motor. See Fig. 71.
J352 (6)	In left front seat harness, approximately 7 cm (3 in) from breakout for inflatable restraint seat position sensor. See Fig. 71.
J355 (7)	In driver seat harness, approximately 10 cm (4 in) from driver seat adjuster motor connector. See Fig. 71.
J356 (5)	In driver seat harness, approximately 9 cm (4 in) from driver seat cushion ventilation heat & cool module connector. See Fig. 71.
J357 (5)	In right front seat harness, approximately 7 cm (3 in) from passenger seat cushion ventilation heat & cool module connector. See Fig. 72.
J358 (1)	In right front seat harness, approximately 7 cm (3 in) from breakout for passenger seat cushion ventilation heat & cool module. See Fig. 72.
J359 (8)	In driver seat harness, between driver position module & left front cushion heated seat element. See Fig. 71.
J360 (4)	In right front seat harness, between X314 & left front cushion heated seat element. See Fig. 72.
J361	In body harness, between X300 & amplifier.
J362	In body harness, between X300 & amplifier.
J363	In body harness, between X301 & amplifier.
J364	In body harness, between X301 & amplifier.
J365 (13)	In body harness, approximately 5 cm (2 in) from audio amplifier connector C1. See Fig. 66.
J366 (14)	In body harness, approximately 10 cm (4 in) from audio amplifier connector C1. See Fig. 66.
J369	In center console harness, approximately 10 cm (4 in) from breakout for cigar lighter.
J370 (12)	In body harness, approximately 42 cm (17 in) from breakout for yaw & lateral acceleration sensor. See Fig. 65.
J371	In driver seat harness, approximately 10 cm (4 in) from seat belt switch.
J372 (16)	In body harness, approximately 5 cm (2 in) from breakout for audio amplifier connector C1. See Fig. 66.
J373	In body harness, approximately 47 cm (19 in) from branch for battery current sensor.
J374	In body harness, approximately 10 cm (4 in) from branch for rear fuse block.
J375 (31)	In body harness, approximately 5 cm (2 in) from breakout for X301. See Fig. 65.
J376 (4)	In body harness, approximately 55 cm (22 in) from breakout for X301. See Fig. 65.
J377	In body harness, approximately 15 cm (6 in) from breakout for X206.
J378 (23)	In body harness, approximately 19 cm (8 in) from breakout for X300. See Fig. 65.
J379 (22)	In body harness, approximately 9 cm (4 in) from breakout for X300. See Fig. 65.
J380	In body harness, approximately 69 cm (28 in) from branch for battery current sensor.
J381	In center console harness, approximately 8 cm (3 in) from breakout for A/T shift lock control solenoid.
J383	In center console harness, between breakout for A/T shift lock control solenoid & breakout for auxiliary HVAC control module.
J384	In body harness, between rear fuse block & rear seat lumbar switches.
J385 (2)	In body harness, approximately 10 cm (4 in) from G306. See Fig. 73.
J388	In body harness, approximately 27 cm (11 in) from branch for rear fuse block.
J392	In headliner harness, approximately 11 cm (5 in) from breakout to rear park assist indicator.
J400 (6)	In rear fascia harness, approximately 7 cm (3 in) from breakout for right middle object alarm sensor. See Fig. 74.
J401 (2)	In rear fascia harness, approximately 7 cm (3 in) from breakout for right middle object alarm sensor. See Fig. 74.
J402 (5)	In rear fascia harness, approximately 7 cm (3 in) from breakout for license lamps. See Fig. 74.
J404 (3)	In rear fascia harness, approximately 13 cm (5 in) from breakout for license lamps. See Fig. 74.
J405	In rear fascia harness, approximately 8 cm (3 in) from breakout to right rear corner object alarm sensor.
J500	In driver door harness, approximately 10 cm (4 in) from breakout for X501.
J600	In right front door harness, approximately 10 cm (4 in) from breakout for X601.
J700 (4)	In rear door harness, approximately 12 cm (5 in) from breakout for X700. See Fig. 69.
J701	In rear door trim harness, approximately 5 cm (2 in) from breakout for left rear door window switch.
J702	In rear door trim harness, approximately 8 cm (3 in) from left rear door window switch.
J800 (4)	In rear door harness, approximately 12 cm (5 in) from breakout for X800. See Fig. 70.
J801	In rear door trim harness, approximately 5 cm (2 in) from breakout for right rear door window switch.
J802	In rear door trim harness, approximately 8 cm (3 in) from right rear door window switch.